Asked by: Leovigildo Abadesso
home and garden indoor environmental quality

What size heater do I need for my 2 car garage?

Last Updated: 17th August, 2021

Installing the heater
How many Btu you need depends on variables such as the garage size, your climate zone and the temperature you want to work in. 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.

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Simply so, how many watts does it take to heat a 2 car garage?

According to the “10-watt rule,” here are some illustrative examples of garage heater sizing: Single-car garages (0-450 sq ft) require a 2000-3000 W unit (or 6,800-9,000 BTUs/hr) Two-car garages (450-700 sq ft) require a 3600-7000 W unit (electric heaters) or 12,000-24,000 BTUs/hr (for the propane ones)

how can I heat my garage cheaply? With that information in hand, you'll be able to decide the smartest way 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:

Also to know, how do I calculate what size heater I need?

How to Calculate Heater Size

  1. Measure the length, width and height of each room you want to heat.
  2. Add the areas of all rooms to be heated to get the total cubic feet.
  3. Estimate your desired temperature increase.
  4. Calculate the BTUs you need.
  5. Recognize situations that may increase your heater size needs.

How many BTUs do I need for a 1000 sq ft garage?

Size and Ceiling Height

Area To Be Cooled (square feet) Capacity Needed (BTUs per hour)
450 to 550 12,000
550 to 700 14,000
700 to 1,000 18,000
1,000 to 1,200 21,000

Related Question Answers

Tamela Ugarte


What type of heater is best for a garage?

The 6 Best Garage Heaters
  • Mr.
  • Dyna-Glo Pro RMC-FA60DGP 30,000-60,000 BTU Propane Forced Air Heater.
  • Modine HD45AS0111 45,000 BTU Hot Dawg Natural Gas Garage Heater.
  • Heatstar By Enerco F125444 Radiant/Natural Gas Overhead Garage Heater.
  • Fahrenheat FUH54 240-volt, 2500-5000-watt Electric Fan-forced Garage Heater.

Guiu Chloe


How many Btus do I need to heat a 24x24 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.

Mstislav Vincenti


Are infrared heaters good for a garage?

Garage heating is the solution. They work great for an out-building or detached work shed. Plus, an infrared garage heater helps the rooms above your garage stay warm too. An infrared garage heater directly heats people and objects, thereby heating the surrounding air to the set temperature.

Ghislaine Rashal


Where should I place my garage heater?

Installing Garage Heaters
In large spaces, garage heaters like the NewAir G73 should be mounted at least seven feet above the floor and at least four inches below the ceiling. When mounting heaters, place them on interior walls, away from doors, windows, picture frames, and electric circuits.

Karoly Huttermann


How many watts do you need to heat a garage?

Therefore, a 1500 watt space heater (120 volts) can heat an area of 150 square feet, and a garage heater rated at 5,000 watts should be able to comfortably heat an area over 400 square feet.

Mia Ormazabal


How do I keep my garage warm in the winter?

5 Great Ways to Heat a Garage in Winter
  1. Choose a heat source or two that are sized for the garage's square footage.
  2. Finish the walls with fiberglass batt insulation and paneling.
  3. Insulate the garage door.
  4. Eliminate all other sources of drafts.
  5. Consider radiant heat for your floors.

Essaddik Despres


How do you heat an uninsulated garage?

So what's the best way to heat an uninsulated garage? Use propane heaters for high powered, silent and odorless heat. Opt for a radiant style for a small-medium garage, or a torpedo style for a larger space. For an electric option use infrared heating as it's more durable.

Cherkaoui Canella


How much does it cost to heat a garage?

The forced air heater is going to be least expensive of the two to purchase, however, the low-intensity infrared heater requires less energy over time. To heat an average, two to two-and-a-half car garage you will spend between $600 and $1500.

Aleksi Ruschepaul


How many square feet will 5000 Btu heat?

Window Air Conditioning Chart
100 Sq. Ft. 5,000 BTU
400 Sq. Ft. 10,500 BTU
500 Sq. Ft. 11,500 BTU
800 Sq. Ft. 17,000 BTU
1,000 Sq. Ft. 21,000 BTU

Poder Grabe


How many square feet will 5200 Btu heat?

A standard space heater provides approximately 5,100 BTUs, or 1,500 watts. That means that a standard size space heater is more than sufficient for a room with 144 square feet. But before you decide on what size space heater you need for your home or office, consider these factors.

Housseine Zarobe


How many square feet will 40000 Btu heat?

Model BTUs Space it will Heat
Crave 36 17,500 – 30,000 600 - 900 square feet
Crave 48 21,000 – 40,000 800 – 1,300 square feet
Crave 60 26,000 – 50,000 1,300 – 2,100 square feet
Crave 72 30,000 – 58,000 1,500 – 2,400 square feet

Zuleyma Luckenotte


How many square feet does a 60000 BTU furnace heat?

A standard that is used by heating and cooling equipment companies is to provide at least 25 to 30 Btu of heat per square feet in the home for a moderate to warm climate. A mid-sized home of 2,000 square feet would need approximately 50,000 to 60,000 Btu to heat it properly.

Birger Gutheinz


How can I make my garage warmer?

Freezing Cold Garage? Here Are 5 Tips to Keep it Warm
  1. Get Warm and Toasty With a Heater.
  2. Insulate the Garage Door.
  3. Insulate the Garage Walls.
  4. Repair Or Replace the Weatherstripping.
  5. Consider Caulking.

Xiaoguang Hanson


How much warmer is an insulated garage?

Insulated garage doors can provide a warmer garage space. In fact, an insulated garage door can make the temperature inside the garage over 20 degrees warmer than the outside air.

Mountaga Mockenhaupt


How can I make my garage cooler?

  1. Open the garage door to let in cooler air. This is the simplest way to decrease the temperature.
  2. Leave the windows open to create a breeze.
  3. Allow hot vehicles to cool down before parking them in the garage.
  4. Get insulated curtains to keep the heat out.
  5. Install a dehumidifier to lower the humidity level.

Arane Quintarelli


How much does it cost to insulate a 2 car garage?

How Much Does It Cost to Insulate a Garage? Garage insulation costs vary based on the size of the space and the insulation you purchase. Sebring estimates it costs about 50 cents to $1.25 per square foot to insulate a garage. This means insulating a two-car garage would cost about $338 - $845.

Empar Izar


What size heater do I need for my garage?

The general guideline when sizing heaters is 10 watts for every square foot of space. For example, the NewAir G56 Electric Garage Heater has a wattage of 5600 watts, which means it can easily and effectively heat an area of up to 560 square feet.

Joni Barrancos