# Quick Answer: What Size Garage Heater Do I Need?

## How many BTU’s 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?

You can calculate the ideal garage heater for your garage using the formula of size (in cubic feet) times 0.133 times the desired temperature rise. These factors vary, but we generally recommend an 8,000 – 12,000 BTU garage heater for a one car garage.

## What size heater do I need for a 2 car 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.

## How many BTU do I need to heat a 20×20 room?

To determine the number of BTUs per square foot that you need to heat a room, simply multiply the square footage by 20 BTUs per square foot. For example, if a room has 1,000 square feet, you would require 20,000 BTUs to heat it.

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## How much does it cost to install a garage heater?

Homeowners spend between \$1,200 and \$4,000 to install a garage heater, but it can cost up to \$5,000 or more. Costs vary based on how big your garage is, and what kind of garage heater you choose. There are several types of garage heaters, such as electric, infrared, and natural gas-powered units that vary in cost.

## 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.

## 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 1000 square feet?

Calculating the number of BTUs needed to heat an area 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 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.