3 ways to cool a converted garage

  1. Connect an existing air duct from your house to the garage. This, of course, only works if the garage and the home are connected and a duct is nearby. …
  2. Buy a ductless air conditioner (also known as a mini-split system). …
  3. Install a window air conditioner.

How can I heat and cool my garage cheaply?

With that information in hand, you’ll be able to decide the best way for you to heat your garage.

  1. Install Better Insulation. The Cheapest Way to Heat Your Garage. …
  2. Hook Up an Electric Space Heater. The Simplest Way to Heat a Garage. …
  3. Fire Up a Combustion Space Heater. …
  4. Install a Ductless Mini-Split System. …
  5. Add Radiant Heating.





What is the cheapest form of heating for a garage?

Forced-Air Heater



You can use a forced-air unit to heat your cold garage. These heaters range in price and size and are not as pricey as an infrared heat source.

What is the most efficient way to heat and cool a garage?

What’s the Most Efficient Way to Heat and Cool Your Garage?

  1. Ductless Mini-Splits. A ductless mini-split system is a popular and efficient choice for any space. …
  2. Window Units. …
  3. Portable Units. …
  4. Through-the-Wall Systems. …
  5. Ductless Mini-Splits. …
  6. Window Units. …
  7. Through-the-Wall Units. …
  8. Add or Replace Insulation.

Can you heat and cool a garage?

Combined Units



This sleek and contained indoor air conditioning unit provides year-round temperature control to the indoor garage space. These are units that will provide both heating and air conditioning out of the same unit. These are the best options for efficiency and saving space.

How much does it cost to heat and cool a garage?





A 45,000 BTU forced air heater is typically large enough for a large two-car garage, but this can depend on variables like climate, ceiling height, and insulation. Assuming you’re using electricity, and your price per kWh is 10¢, running your heater for 8 hours will cost about $10.50.

Are heated garages worth it?

Keeping your vehicles in a heated garage means no warming them up before you get in, saving fuel. A warm garage can lengthen your vehicle’s battery life and performance. Plus, if your car needs a jump during the winter, you’ll be much happier doing it in a heated garage.

How can I heat my garage for free?

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How many Btus do I need to heat and cool my garage?

A basic rule of thumb for forced-air heaters is 45,000 Btu to heat a two- to 2-1/2 car garage, and a 60,000 Btu garage heater for a three-car garage. The makers of low-intensity infrared tube heaters say that 30,000 Btu can heat a two to 2-1/2 car garage, and suggest 50,000 for a three-car garage.

How many BTU do I need for a 2 car garage?



30,000 – 50,000 BTU

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.

How many square feet will 40000 BTU heat?

1,000 sq ft



Area = 40,000 BTU / 40 BTU per sq ft = 1,000 sq ft



In a standard climate, 40,000 BTU is enough to heat a 1,000 sq ft area. Obviously, if you live in colder climate, a 40,000 BTU heater will heat an area below 1,000 sq ft.

How many BTUs do I need to heat a 24×24 garage?

There is a basic rule of thumb for forced-air heaters, which is to heat a two- to 2-1/2 car garage and a three-car garage with 60,000 Btu.

What type of heater is best for a garage?

Comparison of the best garage heaters

Make Power source
Best kerosene garage heater Sengoku Kerosene
Best garage heater for small spaces/best garage heater for insulated garages Dr. Infrared Electric
Best portable garage heater Mr. Heater Propane
Best garage heater if money is no object Modine Natural gas

How much does it cost to run a 1500 watt heater for 30 days?

Calculate the Cost of Running an Electric Space Heater

Watts x hours of operation ÷ 1,000 x kilowatt-hour (kWh) electric rate
Watts Cost per kWh
Space heater 1,500 $0.10
Here’s the math: 1500 x 24 = 36,000 36,000 ÷ 1,000 = 36 36 x 0.10 = $3.60 $3.60 x 30 = $108



Can you use a propane heater in a closed garage?

For safety reasons, you shouldn’t run a propane heater in a closed garage. Ventilation is necessary in case of emergencies. If you must use it in a closed garage, you should never leave it unattended.

Are electric garage heaters expensive to run?

Electricity is generally more expensive than gas in most all of North America. If we compare the cost of heating a typical two-car garage, the electric heater can cost as much as 20% more to operate than a vented forced air gas heater and 40% more than a vent-free infrared gas heater.

Is it cheaper to run a gas or electric garage heater?

It tends to be cost-effective to operate because natural gas and propane are often the most efficient way to heat a garage than the electricity required to produce the same heat. Gas-powered units, however, cost more up front than electric units, and local codes require installation by a licensed professional.

What’s cheaper electric or gas heater in garage?



Electric Garage Heaters



An electric garage heater unit is generally cheaper than the gas powered unit but it is more expensive to operate than gas powered heaters. In most parts of the country, running an electric heater to keep a two-car garage can cost about 20 percent more to operate than forced air gas heater.