How many BTU do I need to heat 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 do you size a heater for a garage?

How to Estimate the Heater Size for a Garage

1. Measure the length and width of your garage.
3. Divide your total square footage by 200, and then multiply your answer by 9,000 to determine the BTU requirements for an uninsulated garage.
4. Find a heater with a BTU output that matches your results.

How do I calculate what size heater I need?

What Size Heater

1. Multiply the length times the width times the height to calculate the volume in cubic feet.
2. Multiply the room’s cubic footage by 4 if its walls contain fewer than 3 inches of insulation.
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What kind of heater do I need for my garage?

Single-car garages up to 450 square feet should use a heater with 2,000 to 3,000 watts or 6,800 to 9,000 BTUs. Two-car garages between 450–700 square feet need a heater with 3,600 to 7,000 watts or 12,000 to 24,000 BTUs.

How many watts does it take to heat a 2 car garage?

However, an electric garage heater with 3,000 watts is usually needed to heat a 2-car garage. The best gas garage heater for a 2-car garage usually has a rating of about 18,000 BTUs to adequately heat the space.

How many square feet will 40000 BTU heat?

To heat a 2,000 square foot home, you will need approximately 40,000 BTU’s of heating power.

How many square feet will a 5000 watt electric heater heat?

A 1500 watt space heater can heat an area of 150 square feet, and a 5000 watt garage heater can comfortably heat an area of 400 square feet.

How many square feet is a typical 2 car garage?

Two Car Garage Square Feet (Sq Ft) So, as we described above, the average Width of a 2-car garage is around 18ft and the length (depth) is around 20ft. Therefore, the average square footage of 2 car garage is around 18ft X 20ft = 360 Sq Ft.

How many watts do I need to heat a room?

TWO USEFUL FORMULAS Wattage: Multiply the area in feet by 10. For a room 20 feet by 20 feet, we obtain 400 sq. ft., multiplied by 10 to give 4000 watts. The number of watts = area x 10.

How can I heat my garage cheaply?

How to Heat a Garage for Year-Round Use

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. The Fastest Way to Heat a Garage.
4. Install a Ductless Mini-Split System.