What are the Pros and Cons of Installing an Attic Furnace?

A furnace is often put in the basement, a hall closet, or the garage. But what if you don’t have a basement, garage, or appropriate closet?

Many states permit the installation of furnaces in attics as long as strict national requirements and state rules are met.

The Advantages of Installing Your Furnace in the Attic

It’s easy to setup

Most houses have an attic, and many contemporary furnaces may be positioned either vertically or horizontally, depending on the house. More manufacturers are producing furnaces that can be put in several configurations, including horizontally, making them particularly appealing for attic installations. A large attic space can also facilitate installation, whether on the attic floor or hung from the rafters.

Using your attic clears storage space

The most important benefit of an attic furnace is the extra storage space it provides. In most newer homes, the basement is fully finished, which means that there’s almost no storage left in a basement. But the attic is usually unfinished, or if it is finished, it’s usually just a small landing. So if you can use your attic as storage, you’ve got one less place to store belongings.

It can save on energy costs

When an attic is vented properly, it can make your home more energy-efficient. Air flows through the attic and out of the house, keeping it cooler in the summer and warmer in the winter.

A properly installed and operating system can lower your home’s overall energy use and save you money on your utility bills.

Safety checks are easy

Thorough safety checks are also much easier with an attic furnace. “It’s more difficult to install a furnace in a tight closet or hall because you don’t have a lot of space to work in. In an attic space, you can check for combustion air and adequate clearances. You have the space to do it—and it’s much safer to work in a large, open space than in a small, confined area.

Disadvantages of Putting Your Furnace in the Attic

It could cost more to operate

Using your attic as a furnace room may be more expensive to operate than using a basement, closet or garage. With an attic, you lose the ambient heat that a basement offers, and you’re more likely to have air leaks in your attic that may cause more energy to be used.

However, a properly installed and operating system can still save you money on your utility bills, so it’s hard to say exactly how much more operating costs will be.

It could be a fire hazard

Installing a furnace in an attic could be a fire hazard. A good amount of airflow is needed through the attic to keep the furnace from overheating. Insufficient airflow can make it hot enough in the attic to ignite a fire, especially if a furnace is installed where an attic fan is normally installed.

That’s why it’s important to balance the furnace’s needs with the needs of your home. If you have problems with high temperatures in the attic, talk to a professional about your home’s current ventilation system, or if you need to add a new one.

When Can I Install a Furhome’sn My Attic?

A furnace may be installed in the attic at any time, whether during new construction or remodelling. To ensure that all safety standards and local codes are followed, we recommend employing a qualified expert to handle the installation.


Installing a furnace in the attic can be a good idea, but there are many things to consider, including safety and code issues. A professional contractor or HVAC expert can help you determine if an attic installation is right for your home.

Legacy Heating provides top-quality repair services for furnace repair in Edmonton. Our team of experienced contractors will ensure that your heating and cooling systems are in peak condition, all for an affordable price. Reach out today and see how we can help!

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