Last Update: 10 Jan 2021

How to Install a Garage Heater?

James Kelly
James Kelly

Hi! This is James. I'm a professional writer and working on this field for a long time. Basically I love to write about everything related to tools, diy and home improvement. All my writings speak for itself as I'm passionate about this. I love to explore new things as well as new places whenever I get free time. You'll never find me free for this reason!

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The installation process of a garage heater is not quite expensive or unattainable. Whether you own an insulated garage or not, during winter, the temperature can drop drastically.

We use our garage as storage for vehicles, larger equipment, etc. Some people use it as a workspace too.

These storing things can easily get damaged from cold weather.

Fortunately, knowing the process regarding how to install a garage heater prevents those things from any winter harm. You can install either an electrical garage heater or a gas garage heater.

If you are searching for the proper installation guidance of any of these garage heaters, then this is the perfect place to start with.

Types of Garage Heater

There are mainly three types of garage heater: electrical garage heater, natural gas garage heater, and propane garage heater.

Electrical Garage Heater

Gas Garage Heater

Propane Garage Heater

However,  before buying any of these garage heaters, you need to consider,

Areas with weak insulation demand greater power, and rooms with insufficient ventilation demand extra vents and piping systems.

Some Benefits of Installing Garage Heater

The main advantage of garage heaters lies in their power and compact size. Some other benefits are explained below:


A standard garage heater includes many safety characteristics. These features are beneficial to avoid accidental burns and flames. Some of these characteristics are exhaust ports, tip-over switches, fireproof scraping, and automated temperature valves.


For having the ability to circulate air, garage heaters can efficiently heat large areas in a bit of time. You may not get this benefit from space heaters. Most importantly, some gas garage heaters are suitable for heating warehouses and job sites as they can warm areas likely 45 sq.ft.


In the past, garage heaters were created as large, stationary appliances. But, in modern ages, as the technologies are improving, manufacturers offer small and mobile heaters. You can quickly move, carry, and reconstruct them with fewer efforts.

Complete Guidance on How to Install a Garage Heater

The installation process mainly depends on the power source and the type of garage heater you are buying.

We mentioned earlier that there are three types of garage heater you can use.

The first one is powered by electricity, the second one is powered by natural gas, and the last one is powered by propane.

This article only discusses the whole installation process regarding the electrical garage heater and gas garage heater.

Before we start, keep in mind that whether you use an electrical garage heater or a gas garage heater, you will need to work with your home’s gas line and electrical scheme.

Installation Process of Electrical Garage Heater

Equipment you will need

Installation Process

Installation Process of Gas Garage Heater

Equipment you will need

Installation process

The Installation Cost of Garage Heater

As we finished mentioning how to install a garage heater, let’s enlighten you about these installments’ costs.

1. Cost of installing an electric garage heater

The upfront expenses of these types of heater are relatively low. The price of most of the models starts at $100 and end at $400.

Most importantly, you can install them all by yourself. So, you won’t need to expend money for the installation.

Even if you need assistance, you have to pay for a few hours of work. So, the expense will be very minimum.

However, the electricity bill may increase since electrical garage heaters require electricity to operate.

These models are perfect choices for small places but less ideal for large areas.

2. Cost of installing a gas garage heater

The upfront expense of these heaters lies between $400 to $800. Most of the models provide venting components along with the heaters.

But, if your model doesn’t, you have to spend $150 more to buy these components. By installing it by yourself, you can lower your expenses quite a bit.

However, if you expect to hire a plumber to make the gas connection and ventilation system, you may need to pay around $500 to $1000.

But it will save your money in the long run as the cost of running a gas garage heater is much lower than an electrical garage heater.

Final Verdict

Whether you plan on installing an electric garage heater or gas garage heater, you need the specific instructions on how to install a garage heater.

Above, we’ve provided every step on installing an electrical garage heater and gas garage heater individually. Follow the article and get your task done.

While doing the task, some important things to keep in mind are that be aware of any existing local codes, make sure you turn off any electrical sources.

However, your gas line or electrical line may be easy for you to do on your own. But, if you are having trouble with your work, then consider hiring an electrician or a plumber to finish the job for you.

How to Install a Garage Heater? Electrical & Gas Heater Installation Process 1