Countdown to Cozy: How Long Does It Take to Install a Furnace?

If your home is ready for a new HVAC system but your schedule is a bit complicated, you may be wondering how long it takes to install a furnace. You’re not alone. This is a common concern for people who want to ensure their home stays warm and cozy, especially as colder months approach. Furnace installation is a significant project that requires careful planning and execution. 

That’s why we’re going to explore the average time it takes to install a furnace, the factors that can affect this timeframe, and tips to speed up the process so that you’re well-prepared when it’s time for an upgrade.

How Long Does It Take to Install a Furnace on Average?

On average, installing a furnace takes between four and eight hours. This timeframe depends on several factors, but if everything goes smoothly, a professional installer can often complete the job within half a day. However, if complications arise, it could take longer. It’s important to plan accordingly and discuss the process with your installation company to get a more accurate estimate based on your situation.

What Factors Affect Furnace Installation Time?

The time it takes to install a furnace isn't set in stone. Several factors can influence how quickly the job gets done. Understanding these factors can help you prepare for the installation and minimize any unexpected delays.

Furnace Installation Site and Its Accessibility

If the installation site is in a hard-to-reach area, such as a cramped attic or a basement with limited access, it will take longer to complete the job. The installer may need to navigate tight spaces, which can slow down the process. If the area around the furnace is cluttered, this could cause even more of a delay.

Type of Furnace

Gas furnaces may take more time to install because they need gas line connections and venting. Electric furnaces, on the other hand, might be quicker to install but could require additional electrical work. If you’re upgrading to a high-efficiency furnace, there are extra steps involved, like installing new venting systems or condensate drains.

Size of the Old and New Furnace

The sizes of the old and new furnaces can also affect installation time. If your new furnace is significantly larger or smaller than your old one, your pro will have to adjust the existing ductwork or installation site. This could involve additional cutting, fitting, or sealing, all of which can add to the overall installation time.

Condition of Existing Ductwork

If your ductwork is in good condition, the furnace installation process will go smoother and be quicker. However, if there are issues such as duct leaks, blockages, or outdated materials, your pro will have to address these before the new furnace can be installed. Ductwork repairs or replacements can add several hours to the installation process.

Can You Install a Furnace Yourself?

While it is technically possible to install a furnace yourself, we don’t recommend it unless you have the unique (and costly) tools needed, skills from years of installation, and confidence for such a project. Furnace installation is a complex task that involves electrical wiring, gas connections, and ductwork, all of which require precision and expertise. Improper installation can lead to safety hazards, such as gas leaks or electrical fires. 

On top of the hazards to your health and home, DIY installation can void the furnace's warranty. For these reasons, it's best to leave this job to a reputable local furnace installer who has the experience, tools, and knowledge to do it correctly and safely.

Ways to Speed Up the Installation Process

If you’re eager to have your new furnace up and running as quickly as possible, there are several steps you can take to help expedite the installation process. By being proactive and prepared, you can minimize potential delays and ensure a smooth installation experience.

Choose a Reputable Furnace Installation Company

One of the best ways to ensure a quick and efficient installation is to hire a reputable furnace installation company. Experienced professionals will have the necessary skills and tools to handle the job efficiently. Look for companies with good reviews and a proven track record to avoid any unnecessary delays.

Prepare the Installation Site

Before the installers arrive, make sure the area where the furnace will be installed is clear of obstructions. Remove any items that could be in the way and ensure there is a clear path for the installers to access the site. This will help them get started right away and avoid any delays caused by cluttered or obstructed workspaces.

Have All Equipment and Tools Ready

If you’re providing any of the equipment or tools for the installation, make sure everything is on-site and ready to go. This includes the furnace itself, as well as any additional materials like ductwork or electrical supplies. Having everything on hand will prevent the installers from having to leave the site to gather supplies, which can add hours to the project.

Communicate With the Company

Clear communication with the installation company is key to a smooth process. Before the installation day, ask the company if there’s anything specific they need from you to ensure an efficient job. This might include providing access to certain areas of your home, ensuring utility connections are accessible, or having certain paperwork ready. 

By being proactive, you can help the installers work more efficiently and complete the job in a timely manner.