The Mini Split Heat Pump: Revolutionizing Garage Heating

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By Debarghya Roy


Are you looking for a way to heat and cool your garage? A mini split heat pump may be the perfect solution. Mini split air conditioners can offer superior energy efficiency, quiet operation, zone heating and cooling capabilities, improved air quality, as well as space-saving benefits and these all without the need for ductwork or other costly installation requirements.

mini split heat pump for garage

Image of a mini split heat pump for garage

Key Takeaways

  • Mini splits air conditioners can provide superior energy efficiency, quiet operation, zone heating and cooling capabilities, improved air quality and space-saving benefits.
  • Installing a mini split is easier than traditional HVAC systems as there are no ducts to install; plus they offer improved energy efficiency with up to 50 – 60% more than other solutions due to their “zone” capability.
  • Along with offering better control over temperature levels and humidity levels in a garage setting ,mini split heat pumps also promote healthier air as pollutants such as dust mites and pollen won’t be released into the space.
  • Lastly, mini splits are very competitive when it comes to conserving space because of their small size compared to bulky traditional HVAC systems; not only that but they also feature variable speed components which modulate both temperature levels & fan speeds for maximum efficiency even during cold operations

What Is A Mini Split Heat Pump For A Garage?

A mini split heat pump is an energy-efficient and space-saving heating and cooling system that is suitable for garage spaces. It consists of two connected units, the indoor air handler and outdoor condenser

The role of the air handler unit in a mini split system is to condition the air inside the space being heated or cooled with a fan blower while suppressing noise levels. 

On the other hand, an outdoor compressor/condenser works by transferring refrigerant gas through copper pipework which enables efficient heating and cooling from both indoor and outdoor units.

With its smaller size than other HVAC systems, mini splits are ideal for garages since they do not require as much maintenance or installation costs associated with more complex HVAC systems such as central ACs or fuel-based heaters.

Additionally, these systems are great for precise temperature regulation due to their “zone” capability; meaning each room controlled by one individual thermostat, thus providing greater comfort control in a garage setting.

Benefits Of Using A Mini Split Heat Pump In Your Garage

Mini-split heat pumps offer many advantages to those looking to add a reliable and efficient heating and cooling unit to their garage, such as improved energy efficiency, an easy installation process, improved air quality, zone heating and cooling capabilities, and a space-saving design.

Improved Energy Efficiency

Mini-split Heat Pumps can offer improved energy efficiency over traditional garage heating and cooling systems, such as fuel-based heaters or window air conditioners.

This is due to their zone heating and cooling capabilities. Mini split heat pumps allow you to only cool or heat the specific area of the room that needs it, eliminating unnecessary energy waste by not having to run the entire system when only a section of it is in use.

In some cases, this can result in up to 50-60% more energy efficiency compared to traditional heating and cooling solutions. 

Additionally, mini split heat pumps can reduce power consumption thanks to their variable speed components which modulates both temperature levels and fan speeds for maximum efficiency even during cold weather operations.

Easy Installation

Mini split heat pumps can be conveniently and easily installed in your garage, making them a great option for any climate. The installation process is generally much simpler than traditional HVAC systems since there are no air ducts to install.

Installing a mini-split involves running electrical wires from the outdoor unit to the indoor unit, installing refrigerant lines to connect the two units, then mounting both components securely on an outer wall or roof of your garage.

Professional technicians will perform these tasks with care and precision, ensuring that everything is properly sealed and fully functional before they leave the job site.

If you decide to go with a DIY installation project, following step by step instructions carefully is recommended as incorrectly connecting or insulating parts could cause damage down the road.

Improved Air Quality

Mini-split heat pumps are becoming increasingly popular in garages due to their ability to promote healthier, higher quality air. Traditional ducted systems can distribute a variety of pollutants throughout the space, including dust mites, pet dander and pollen.

With a mini-split system having no ducts connected directly to it, these fine particles will not be released into your garage’s airways. That means you’ll enjoy improved indoor air quality

Zone Heating And Cooling

Mini-split systems with multiple indoor units offer the option to provide zone heating and cooling in your garage. 

This type of system is ideal for spaces that have different temperature needs in different areas, or where there’s a need to heat or cool separate rooms.

With this technology, you can customize your comfort settings for each individual area in the garage. For eaxample, if only a portion of the space needs cooling, you can use an additional mini-split head unit just for that section instead of forcing cold air throughout the entire area.

Additionally, zone heating and cooling allows you to take advantage of lower outdoor temperatures as it utilizes refrigerant lines between both indoor and outdoor units.

Space-Saving Design

Mini split heat pumps are a great choice for garages with limited space. They are small and compact, allowing them to be easily mounted on walls or ceilings.

This saves valuable floor room compared to bulky traditional HVAC systems that require ductwork. Their energy-efficient design also makes them an excellent pick for uninsulated areas like garages as they don’t waste energy heating up open spaces like entire house systems do.

Mini split heat pumps have a wide range of SEER and HSPF ratings, so customers can find the right size unit for their needs in terms of cooling capacity or BTUs per hour output.

Factors To Consider When Choosing A Mini Split Heat Pump For Your Garage

Before selecting the best mini split heat pump for your garage, it’s important to take into account such factors as 

Garage Size And Layout

The size and layout of your garage play an important role in the selection of a mini-split heat pump. When it comes to heating and cooling, the area determines how powerful your mini-split has to be.

The number of BTUs (British Thermal Unit) required is determined by multiplying the square foot footage eight or 10 times for air conditioners designed primarily for indoor use.

For example, if you are looking at a 24’x24’ two car garage requiring an 18 SEER system then around a 36k would probably do well. If you don’t get enough capacity then there won’t necessarily be enough cool air for all parts of your home. Some rooms will remain warmer than they should while others may become too cold despite any thermostat settings that were established beforehand.

On the other hand, getting too much power could waste energy due to excessive cycling on and off. Such units run almost continuously but turn off when temperatures reach set points allowing them unnecessarily long downtimes before restarting their cycle again once temperatures rise above said predetermined points.

Therefore it’s very important that you obtain accurate measurements regarding your garage’s size along with its current insulation levels in order to make sure that whatever ductless unit is chosen can adequately handle its thermal load without wasting energy through overcompensation on part of its components/parts .

Insulation And Sealing

Proper insulation and air sealing are necessary for mini split heat pumps to perform their best, since poorly sealed surfaces can result in inefficient usage of energy.

Beyond just improving the efficiency of your heat pump’s operation, appropriate insulation and sealing can also save you money over time as a better-insulated space requires less energy to reach desired temperatures.

When it comes to your garage specifically, adding good quality insulation such as fiberglass batting or loose fill is essential because a well-insulated layer between the warm internal air of the house and cold outdoor environment helps retain temperatures within more easily.

Moreover, properly sealing windows with caulk or foam strips (to prevent drafts) are important activities that need attention while installing mini split heat pumps too, otherwise won’t be able run them at their optimal capacity from conserving as much energy possible when heating or cooling .

Existing Heating And Cooling System

Choosing the right mini split heat pump for your garage requires you to consider your existing heating and cooling system. If you already have an HVAC system installed in your home, your garage will likely be considered part of that same zone and can use the same type of duct work, vents, and vents or chilled-water systems as what’s used inside the house.

There are also standalone mini-splits available specifically designed for installations with limited wiring which may be a more cost effective option if there is no existing HVAC infrastructure.

In addition, adapting central air conditioners into a mini split arrangement is possible if they are compatible with the dedicated outdoor unit . 

While these systems tend to require more specialized installation knowledge than standard ductless solutions, successful integration can save significant amounts thanks to their high efficiency ratings compared to traditional setups.

Climate And Temperature

Mini split heat pumps can provide an efficient and comfortable heating/cooling solution for garages, though the performance of economy-level units can be affected by frigid cold weather.

In general, most mini splits are designed to work in temperatures between -15°F and 115°F. When living in colder climates, choosing a mini split with the best heating season performance factor (HSPF) is important as this metric assesses energy efficiency during periods of extreme cold.

It’s also necessary to take garage size into account when selecting a unit.

BTU Capacity

When determining the size of a mini split heat pump for your garage, one of the most important factors to consider is its BTU capacity. The number must be adequate enough to cover the area you want to cool or heat, yet not consume more energy than necessary.

A general rule of thumb is that every 500 square feet needs an output rating between 6,000 and 12,000 BTUs per hour. To get an exact number for your individual situation you need to take into account things like ceiling height, insulation levels as well as how exposed your space may be to outdoor temperatures.

For example, for garages between 200-500 sqft in size with low levels of insulation and no exposed walls/windows, typically 8 000 BTU systems are recommended. For larger spaces up 5000 sqft, such as those with insulated walls and multiple windows/doors, it’s best to opt for a unit with at least 10 000 BTUs or higher .

Popular models such as Gree Sapphire 9K (9000BTU) , Fujitsu Halcyon 17RLS2H(17 300BTU), Pioneer WYS012 (12 000BTU), Mitsubishi MZ-GL12NA (12000 BTC) will work perfectly according these specific situations.

Type Of Refrigerant

Mini split heat pumps use different types of refrigerants to move heat between rooms or zones. The most common type used is R410A, a hydrofluorocarbon that has become increasingly popular for residential mini splits due to its efficiency and low environmental impact.

There are also HFC-based alternatives such as R32 which have an even lower global warming potential than the more commonly used coolant (R410A)

For applications where space constraints make it difficult to install compressors, ammonia may be used as it does not require compressors and leaks much less than traditional fluorocarbons.

However, it is flammable which limits its use in indoors and makes it better suited to industrial settings with adequate safety provisions in place. 

Finally, Carbon Dioxide is another option for certain commercial applications.

It carries greater risks of toxicity if there is a leak although modern technology mitigates these risks markedly when compared with previous generations of carbon dioxide based systems.

Top Mini Split Heat Pumps For Your Garage

Gree Sapphire, Fujitsu Halcyon, Pioneer WYS012, and Mitsubishi MZ-GL12NA, all of which provide efficient heating and cooling for garages with varying square footage.

Gree Sapphire

  1. The Gree Sapphire has exceptional energy efficiency.
  2. It holds one of the highest Seasonal Energy Efficiency Ratio (SEER) ratings on the market, with up to 38 in cooling mode.
  3. It has a Heating Seasonal Performance Factor (HSPF) of 15.0 in heating mode.
  4. The Gree Sapphire is considered an excellent option for garages needing both cooling and all-year-round temperature regulation due to varying ambient temperatures.
  5. It offers up to 36,000 British Thermal Units (BTUs), suggesting high performance and versatility.
  6. The system is potent enough to efficiently service even smaller garages with a mini-split heat pump system.
  7. The installation process of the Gree Sapphire is simplified, thus potentially reducing installation times.
  8. DIY installation is a feasible option for those inclined to do so.
  9. Simple side-by-side wiring could further decrease installation times.
  10. Additional measures such as installing airtight seals can guard against leaks and possibly enhance the unit’s performance when used correctly.

Fujitsu Halcyon

  1. The Fujitsu Halcyon is a premium mini-split heat pump system designed for garages and other spaces that require interior climate control.
  2. This system is capable of providing effective heating in colder climates and cooling in warmer conditions.
  3. The Fujitsu Halcyon incorporates inverter technology that enhances energy efficiency and is suitable for challenging climate conditions often found in garage areas.
  4. The mini-split design of the Fujitsu Halcyon permits the installation of multiple indoor units connected to a single outdoor unit. This feature maximizes space while ensuring optimal comfort in individual rooms or workspaces.
  5. The Fujitsu Halcyon operates quietly, which makes it suitable for professional use in any garage environment.
  6. The system provides easy troubleshooting and simple maintenance procedures.

Pioneer WYS012

  1. The Pioneer brand WYS series is a reliable, energy-efficient mini-split heat pump designed for garage environments.
  2. This is an easy-to-install system driven by DC Inverter technology, which adjusts the speed of the compressor based on the temperature requirements of the room.
  3. The Pioneer WYS series offers heating and cooling capabilities ranging from 9,000 BTU to 36,000 BTU, making it suitable for all sizes and configurations of garage spaces.
  4. The unit’s high-efficiency ratings make it effective even in extreme temperature conditions.
  5. The availability of a wide variety of parts throughout the unit makes it one of the most reliable systems available.
  6. Installation of the Pioneer WYS series can be accomplished by professionals or undertaken as a DIY project, with step-by-step instructions provided based on the specific unit model.

Mitsubishi MZ-GL12NA

  1. The Mitsubishi MZ-GL12NA mini-split heat pump is an optimal choice for garages and other residential or commercial spaces requiring heating, cooling, and dehumidification.
  2. The one-zone wall-mounted unit features a powerful 12,000 BTU/hour rating, making it suitable for various climates, including extreme cold conditions.
  3. It has a built-in heat pump that produces up to 18,000 BTUs of heating power, allowing it to function effectively even in temperatures below 14°F.
  4. The Mitsubishi MZ-GL12NA utilizes energy-efficient inverter technology, which provides two stages of cooling operation, low and high for enhanced temperature control.
  5. The unit contains advanced motors that facilitate quiet operation, registering as low as 19dB, making it suitable for any living spaces near a garage.
  6. The system provides three fan speeds that can be individually controlled from the touchpad controller included in every model, allowing users to customize comfort based on their needs.

Comparison Of Mini Split Heat Pumps With Other Garage Heating And Cooling Options

Mini-split heat pumps provide an efficient and cost-effective alternative to fuel-based heaters, window air conditioners, and central AC systems for use in a garage.

Fuel-Based Heaters

TopicsMini split heat pumpFuel-based heaters
Upfront CostOften HigherRelatively Lower
Heat Delivery SpeedVariableSome require wait time
Risk FactorsLowerRisk of carbon monoxide poisoning
Energy EfficiencyHigherLower
Long-term CostsLowerHigher
Environmental ImpactLower emissionsHigher emissions
Maximum Capacity (BTU/h)Typically up to 36,000 for residential unitsUp to 400,000

Window Air Conditioners

TopicsMini Split Heat PumpsWindow Air Conditioners
Initial CostTypically HigherLower
Installation ComplexityLess ComplexComplex (Requires fitting into window framing and sashes)
Skill Level Required for InstallationDepends on Model (Professional installation often recommended)Higher Skill Level Required
Zone RegulationCapable (Multi-zone available)Not Capable (Multiple units required for multiple zones)
Energy EfficiencyHigherLower
Noise OutputLowerHigher
Temperature FluctuationsMinimized (due to inverter technology)Potentially More Significant
Overall Operational CostLower (due to higher energy efficiency)Higher

Central Air Conditioning And Heating Systems

Topics Mini Split Heat PumpsCentral Air Conditioning And Heating Systems
Pre-existing InfrastructureNot NecessaryOften Already in Modern Homes
System ComponentsSingle indoor unit per zone, one outdoor unitIndoor unit (furnace or evaporator coil) and outdoor condenser
Zone ControlCapableCapable, but requires ductwork
Installation DifficultyTypically easier in homes without existing ductworkCan be complex without existing ductwork
Suited EnvironmentSingle room or smaller spacesLarger structures with multiple rooms
Consistent TemperatureIn specific zonesThroughout all connected rooms
Effectiveness in Enclosed SpacesHighly effective for garages and similar spacesTraditionally used in enclosed spaces but requires more infrastructure

Cost Comparison

TopicsMini Split Heat PumpsTraditional Fuel-Powered SystemsWindow Air ConditionersCentral Air Conditioning and Heating Systems
Initial Installation CostOften HigherTypically LowerTypically LowerHigher, especially if ductwork isn’t present
Long-term Energy CostLower due to higher efficiencyHigher due to lower efficiencyHigher due to lower efficiencyVaries based on system efficiency
Cost Influencing FactorsSize/BTU rating, local climate, existing insulation, maintenance and repair costsFuel costs, maintenance and repair costsInstallation, maintenance and repair costs, inefficiencyCost of ductwork installation, maintenance and repair costs, overall system efficiency
Cost due to MaintenanceVaries depending on local environmental conditions, mineral content in water sources, outdoor ventilation rate, level of dust accumulation/particulates in airRegular fuel costs and maintenanceRegular maintenance and repairsRegular maintenance and repairs, ductwork cleaning and repairs
Repair & Servicing CostRequires certified refrigerant technicians, potential for higher costs due to lack of monthly maintenanceRegular servicing required, cost depending on system complexityTypically lower, depending on modelRegular servicing required, cost depending on system complexity

Choosing The Right Mini Split Heat Pump For Your Garage

When selecting the optimal mini split heat pump for your garage, several factors must be considered including size and layout of the space, insulation levels, climate and temperature fluctuations as well as BTU capacity.

SEER And HSPF Ratings

SEER and HSPF are two important ratings that you need to consider when choosing a mini split heat pump for your garage. SEER stands for Seasonal Energy Efficiency Ratio, which is a measure of how efficient the unit will be in cooling mode.

The higher the rating, the more energy-efficient it is. Similarly, HSPF stands for Heating Seasonal Performance Factor, and this rating measures how effective the mini split heat pump will be in heating mode.

There’s no direct relationship between these two ratings, however, heat pumps with higher SEER ratings tend to have higher HSPF ratings as well.

A high SEER and HSPF rating indicates better cooling and heating efficiency respectively compared to lower rated units. these models typically require less energy while still providing reliable performance even in extreme weather conditions such as cold winter temperatures or hot summer days.

Indoor Unit Types

Mini-split heat pumps come with a variety of indoor unit types to suit different garage settings. Each type has its own advantages and disadvantages to take into consideration when choosing the right system for your needs.

The most popular types of indoor units are wall-mounted, ceiling cassette, floor-mounted concealed, dockable air handlers, and portable units.

Wall-mounted indoor units are discreetly placed on either side of a room or along walls near the ceiling and are usually well hidden from view to reduce distraction. 

They vary in size depending on their BTU capacity rating and can be connected to wireless thermostats for precise temperature control.

However, they need large clearance space that must remain unobstructed at all times for effective airflow transfer throughout the area they’re being used in.

Ceiling cassettes provide excellent cooling capacity without taking up too much space as they fit nicely into any corner or below an existing ventilation grille setup in high ceilings due to their slim construction design allowing them to hang flush against any surface under 2² feet/ 600 millimeters away from it according to standard installation requirements.

Outdoor Unit Placement

A mini-split heat pump for a garage is a great way to provide clean, climate control and save energy. But for the unit to work properly, it’s important that the outdoor component be placed in the right place.

The ideal site should allow enough clearance around all sides of the appliance so that air can flow through it uninterrupted. A solid and level foundation must also be provided if installing on concrete or paving stones since any unevenness will affect performance.

It’s generally recommended that outdoor units are not exposed to direct sunlight as this could reduce efficiency over time. 

Additionally, there should ideally be no obstructions between the indoor and outdoor units which would disrupt airflow between them or block any cool air from entering your home from outside during summer months.

Noise Level

Mini split heat pumps are known for their quiet operation. With a sound rating of 30-45 dB, they are much quieter than traditional window air conditioners which can be up to 70 dB.

This makes them ideal for garages or other professional settings such as workshops, offices and shops where noise levels should remain low in order to maintain productivity.

Their efficient operation also helps to reduce energy costs without sacrificing quality service and comfort. Compared to fuel-based heaters, mini split units offer greater zone heating and cooling capabilities while producing less overall noise pollution.

Manufacturer Warranty

When it comes to installing a mini split heat pump, having a strong understanding of the manufacturer’s warranty is essential. 

Most warranties for systems Made by companies like Gree, Fujitsu and Pioneer are standard one-year protection plans that cover parts and labor if any defects occur due to workmanship or materials used in constructing the unit.

This usually covers repairs required from regular wear and tear such as worn out fan motor or compressor failure and electrical issues, but does not tend to cover leaks caused by weather damage or negligence on the part of the user.

Understanding what is covered by your specific warranty terms should help you anticipate maintenance needs and potential costs for repairs if needed over time. It’s also important follow all recommended care instructions included with your system in order keep it from voiding under specified circumstances.

Installation Process For A Mini Split Heat Pump In Your Garage

Professional installation of a mini split heat pump in your garage requires knowledge of electrical wiring, refrigerant lines, mounting the indoor and outdoor units, and testing for proper operation.

Professional Installation

  1. Professional installation of a mini split heat pump is crucial to ensure proper functioning and compliance with safety standards. This process involves tasks such as cutting into walls, running refrigerant lines, wiring connections, mounting units, and testing all components.
  2. Incorrect installation can lead to serious equipment issues, including improper function during cold weather and potential fire hazards due to faulty electrical wiring.
  3. Professionals possess the expertise needed for proper sizing calculations to ensure sufficient BTU capacity and can effectively navigate various building codes and regulations, as well as handling replacement parts if necessary post-installation.
  4. The installation of a mini split heat pump requires specific electrical wiring components. Most systems use a 230/208V circuit, though some higher-efficiency models may require a 115V circuit.
  5. A key component called a whip, which includes wire for neutral, ground, and hot legs, is used to supply power to the unit from the service panel.
  6. Refrigerant lines are essential for a mini split heat pump, connecting the outdoor condensing unit to the indoor air handler and enabling circulation. Installation involves running these lines through a small hole drilled into a wall or door frame.
  7. Correct mounting of the indoor and outdoor units is vital for optimal performance. Components must be placed level, securely attached, and at least 18 inches away from any obstructions.
  8. Safety guidelines and local building codes should be followed when connecting electrical wiring between components, including turning off the main power switch before beginning the installation.
  9. Proper testing and startup of the system are necessary post-installation, ensuring that the system is functioning correctly and efficiently. This includes checking refrigerant levels, testing electrical wiring for safety, ensuring compatibility with other existing systems, and adjusting temperature settings.
  10. Skipping or improper execution of testing and startup procedures can decrease efficiency and cause damage to major components like evaporator coils and condensers.

DIY Installation Tips

  1. Safety First: Understand the risk associated with working with electricity before you start. Ensure that you have the necessary safety gear, such as gloves and eye protection.
  2. Knowledge and Experience: You should be experienced in electrical wiring and have basic knowledge of local building codes and best practices. If you don’t, it would be better to hire a professional.
  3. Right Tools: Gather all the tools you need before starting. This includes wire cutters/strippers, special purpose drill bits, adjustment wrenches for pipe connections, insulated screwdrivers, and possibly drill hammers depending on your wall construction.
  4. Plan the Installation: Before drilling or mounting anything, plan your installation. Identify where the indoor and outdoor units will be placed, and make sure there is a suitable path for the refrigerant lines.
  5. Follow Instructions: Always follow the manufacturer’s instructions for installation. They will provide the most accurate information for their specific system.
  6. Avoid Overloading Circuits: Ensure that your electrical circuit can handle the load of the new mini-split system. Overloading circuits can lead to electrical fires.
  7. Proper Wiring: All wiring should comply with current National Fire Protection Association recommendations and local building codes.
  8. Maintain Voltage Levels: Never exceed the manufacturer’s specified voltage levels. If voltage levels exceed the manufacturer’s recommendations, the unit may become damaged or fail prematurely.
  9. Pressure Test: After installation, perform a pressure test to ensure there are no leaks in the refrigerant lines.
  10. Final Check: Finally, go over everything one last time. Make sure all components are securely fastened, all connections are tight, and the system operates as expected.

Cost Considerations Of Installing A Mini Split Heat Pump In Your Garage

Understand the total cost associated with installing a mini split heat pump in your garage before making any purchasing decisions, including factors such as the unit’s price and installation costs, energy savings potential, and maintenance.

Cost Of The Unit

  1. The cost of a mini split heat pump for your garage is largely determined by the size and number of zones required. Larger units covering more square footage typically result in a higher overall price.
  2. Different models and brands of mini split heat pumps can impact the cost due to their varying features, energy efficiency levels, type of refrigerant used, and warranty coverage.
  3. For example, a basic 18000 BTU unit might only need one outdoor unit, while more expensive models may require additional sub-zones or specialized indoor components like fan coils or ductless air handlers. This could necessitate multiple outdoor units for optimal performance.
  4. The level of insulation in a house can also influence the cost of a mini split heat pump. Homes needing more thermal insulation will likely require a higher-performing model, which could increase the cost.
  5. It’s important for professionals to understand the specific needs and specifications of a home before recommending a particular brand or model.
  6. SEER (Seasonal Energy Efficiency Ratio) ratings play a crucial role in selecting a cost-effective mini split heat pump. Systems with higher SEER ratings (10–27+) offer greater efficiency but typically come at a higher cost.

Installation Costs

  1. Labor Costs: Installation of mini-split systems is typically done by professionals. Labor costs can vary widely, depending on your location, the complexity of the job, and the rates of the HVAC contractor you hire.
  2. Equipment Costs: These include the price of the mini-split unit itself, which can range from around $1,000 to $4,000 depending on the brand, model, and capacity of the unit.
  3. Installation Supplies: Various supplies like copper tubing, conduit, and fittings are required for installation, adding to the overall cost.
  4. Electrical Work: Depending on the existing electrical infrastructure in your garage, there might be additional costs related to wiring and circuit breakers to safely handle the new mini-split system.
  5. Structural Modifications: Installation may require drilling holes in walls, mounting brackets, or even creating a concrete pad for the outdoor unit. These modifications can add to the installation cost.
  6. Multi-Zone Systems: If you are installing a multi-zone mini-split system, there will be additional costs for each indoor unit installed and corresponding additional labor.
  7. Building Permits: Depending on local regulations, you may need to get a permit for the installation, which could add to the cost.
  8. Inspections: After the installation is complete, an inspection might be required to ensure the system is installed correctly and complies with local regulations, which is an additional cost.
  9. Ductless vs. Ducted Mini Splits: While most mini-split systems are ductless, some do have ducts. Ducted systems generally have a higher installation cost because they require more labor and materials to install the ductwork.

Maintenance And Repair Costs

  1. Regular maintenance is crucial for the cost-effectiveness and reliability of mini-split heat pumps.
  2. Yearly checkups should include cleaning or replacing air filters, checking refrigerant levels, inspecting connections for loose wiring or worn parts, and overall system operation.
  3. Quick repair tasks such as filter replacement can be done without professional services.
  4. Malfunctioning parts or fluid leaks found during routine inspections should be addressed by certified HVAC technicians to prevent further damage.
  5. Costs of common repair jobs depend on factors such as the type of model and existing installation conditions, typically ranging from $200 to $600 (excluding additional service fees).
  6. Professional check-ups by certified HVAC technicians can cost between $100 and $200 per visit.
  7. Minor repairs, such as addressing fluid leaks or fixing malfunctioning parts, can range from $200 to $600.
  8. Major repairs involving components like compressors or refrigerant leaks can be more expensive, potentially exceeding $1,000.
  9. Replacement parts’ costs vary based on the specific component and model.
  10. Service contracts offered by HVAC professionals provide regular maintenance and inspections for an annual or monthly fee, preventing unexpected repair costs.
  11. Proper maintenance ensures optimal energy efficiency, resulting in long-term cost savings.


1. What is a mini split heat pump?

A mini split heat pump (or ductless heating and air conditioning system) is an efficient, space-saving way to bring climate control to your home by allowing you to independently adjust temperatures in individual rooms or areas using one outdoor unit.

2. Where can I install a mini split heat pump?

Mini splits can be installed nearly anywhere inside a house, as long as they have access to the outdoors for the compressor unit and are able to vent out any exhaust air from the wall-mounted fan coil units indoors. Mini splits are ideal for garages, additions, sunrooms or other spaces not already serviced by central HVAC systems.

3. Are there different types of mini split systems?

Yes, there are several different types of systems available which vary based on size capacity and how many zones/areas of your home they serve at once: single zone models cool just one room without connecting with others; multi zone models cycle refrigerant between multiple indoor cooling zones linked together; while variable refrigerant flow (VRF) connects up to 8 different loads/zones all sharing the same condenser outside – like a small version of traditional ducted forced air system that may extend scope beyond garage application only – covering entire building’s zoning needs.

4. How often should I maintain my mini split system?

It is important that you get your HVAC technician out at least once every year for routine maintenance on both the indoor fan coil units and outdoor compressor cabinet with service intervals varying depending upon usage. If used less frequently (< 10 hrs per week estimates) frequency can be extended but ensure doing checks&balances still timely enough when needed – replacement time varies too greatly even among most similar high performance makes so mind make & specs features bought lately!


Mini split heat pumps are the preferred choice for heating and cooling garages due to their energy efficiency, easy installation, improved air quality, large capacity of BTUs available, effective zone heating/cooling options, space-saving design and cost savings. Mini split heat pumps are some of the most efficient and effective heating solutions, particularly when it comes to cold weather conditions. These systems use an inverter heat pump design that allows them to remain active in temperatures as low as 20°F, making them energy-efficient even in frigid climates. The air-to-air heat pumps commonly used for mini split systems can also serve as the primary heat source in colder regions like Alaska or northern Canada. This combination of features make mini split units ideal for those who need reliable indoor temperature control without spending a fortune on additional electric bills or fossil fuels. Examples of successful deployment of these kind of systems include cases studies from Yukon where they were found to be “powerful enough” and provide maintenance savings up to 15%.


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