Mini-splits are powerful enough to cool or heat a garage in just a matter of minutes so you can turn it on only when you need it. This avoids wasteful air conditioning of rarely used space, saving you money, and reducing your impact on the planet.
The good news is that there's a better solution on the market. Ductless air conditioners, or mini splits, can heat and cool a garage.
Disadvantages of Minisplits
Oversized or poorly placed air handlers can lead to short cycling, wasting energy and failing to provide proper temperature or humidity control. Aesthetic Concerns: Some people may not find the appearance of indoor units appealing.
A small one-car garage requires a 6,000 or 9,000 BTU mini-split, but the higher the garage's dimensions, the larger unit is required. Two-car garages require a more powerful mini-split at 9,000 to 12,000 BTU.
The average cost of installing a ductless mini-split system for a garage can vary depending on factors such as the unit's size, brand, and complexity of the installation. On average, installation costs can range from $2,000 to $5,000, including both equipment and labor expenses.
Usually, we use a 20 BTU per sq ft rule of thumb. Example: For a 1,500 sq ft home, you would need 1,500×20 = 30,000 BTU output. You can use one 30,000 BTU mini splits, two 15,000 BTU mini splits, or three 10,000 BTU mini splits. Be aware of the airflow and access to different rooms (secondary factor).
How long does it take a professional to install a mini split? It usually takes a professional one day to install a single-zone mini split air conditioner. A multi-zone system can take up to a week, depending on the number of air handlers and their placement inside.
To heat an average two car garage, you'll need a garage heater that is capable of heating roughly 6,000 - 9,000 cubic feet of air. We recommend getting a 30,000 - 50,000 BTU garage heater to get your two car garage to a comfortable temperature.
One of the most popular sizes is a 12,000 BTU mini-split. This will heat and cool about 450–550 square feet, or about the size of a studio apartment.
A mini split can cool one room, an entire house, or any size area in between. Generally, one air handler can heat and cool a single room with no obstructions. After that, you can add up to eight indoor units to a heat pump.
Avoid installing the outdoor unit in a spot that gets direct, intense sunlight for prolonged periods. Don't install the indoor unit near heat sources like stoves, ovens, or fireplace. Ensure that the indoor unit is not obstructed by furniture, drapes, or other objects.
Mini-Split System Require a Complicated Installation
It involves attaching indoor unit, outdoor unit, and refrigerant lines – which may take as much as eight hours, depending on their size and complexity – for proper functioning. Installing them may prove challenging to those who need experience with HVAC systems.
How Often Do You Need To Replace a Mini Split? The frequency of replacing a mini split system depends on various factors, including the quality of the system, usage patterns, and maintenance. Generally, a well-maintained mini split from a reputable manufacturer can last 10-15 years or more.
Standard Mini Splits: These are generally designed to function efficiently in temperatures from around 15°F (-9°C) to 115°F (46°C). In colder temperatures, they might need backup heating sources to keep your home warm.
Home Depot mini-split installation costs $500 to $2,000 on average, depending on the number of zones and complexity. Home Depot outsources this work to a network of local installers. These HVAC installers are licensed, insured, and background checked.
The average sized 2 car garage's square footage usually ranges from 400 (20×20), 576(24×24), and 720 (24×30) square feet.
Mini splits do not typically devalue a house. In fact, they can often be seen as an upgrade due to their energy efficiency, quiet operation, and the ability to provide zoned heating and cooling. Buyers may appreciate the lower utility costs and the flexibility these systems offer.
The average cost to install a mini-split is $2,000 to $14,500, with a national average of $3,000. The more zones, the higher the cost.
If the system is undersized, it may not adequately cool or heat your space, leading to discomfort and constant running, which increases energy costs. Conversely, an oversized unit can cause frequent on-off cycles, resulting in wear-and-tear, inefficient energy use, and poor humidity control.
What is the cheapest way to heat a garage? The most cost-effective method to heat a garage is often through insulation and sealing gaps first, as this reduces the amount of heat required. Once that's done, portable electric heaters have the lowest initial cost outlay.
In-surface radiant heat is one of the most efficient ways to heat a garage. Pros: Versatile option that can be installed in your garage floors, walls, or ceiling.
Do You Need An Electrician To Install A Mini Split? You may need an electrician to install a mini split if the home needs an upgrade to 220 service. Otherwise, certified HVAC professionals can do the wiring. It's essential to have an insured professional handle electrical work in a home.
Your installer will: Replace air conditioning (A/C) exterior systems or gas/electric furnace systems, heat pumps and mini splits (where necessary) Replace interior A/C air movement/duct attachments and/or furnace and heat-exchanging products. Meet permit needs and code requirements as required by local ordinances.