# How To Size A Garage Heater?

## 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.

## What size heater do I need for my 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 you size an electric garage heater?

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.

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

There are calculators available to help homeowners factor the right sized unit, but there are also some rules of thumb that can be followed. For example, a 300 square foot room typically requires 7,000 BTUs to maintain a comfortable temperature, while a 1,000 square foot room requires 18,000 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 BTU do I need for a 2 car garage AC?

If you have a typical two-car garage, it should measure somewhere around 20 feet wide by 20 feet deep. A 400-square-foot space like this requires a 9,000 to 10,000 BTU air conditioner, according to Energy Star.

## What is the most efficient way to heat a garage?

In-Surface Radiant Heat This system generates heat through infrared radiation. Unlike other heating methods, it heats a surface, rather than the air around it. In-surface radiant heat is one of the most efficient ways to heat a garage.

## How do I calculate what size heater I need?

To calculate the size unit heater required for your space, use the following formula: Calculate the cubic footage of the space to be heated by multiplying building length x width x ceiling height. A 30 x 40 pole barn with 14 foot average ceilings* will have (30x40x14=) 16,800 cubic feet of space to heat.

## 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.

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## Will a 1500 watt heater heat a garage?

Garage Size A good rule to follow for choosing an adequate garage heater is for every 10 watts of output, you can heat 1 square foot of space. For instance, a 150-square-foot garage or shop will be fully heated by a 1,500-watt electric garage heater.

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

How many BTUs do I need to heat my 24×24 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.

## How many BTUs do I need to heat my 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.

## How many BTU do I need for a 20×20 garage?

As a basic rule, the figure will be between 30 and 60 BTUs per square foot.