How Long Does It Take to Replace a Furnace?

Replacing a furnace is a significant home improvement project that requires careful planning and execution. Whether your old furnace is failing or you’re upgrading to a more energy-efficient model, it’s natural to wonder how long the process takes. The answer varies, but in general, furnace replacements typically require four to eight hours of work. An emergency plumber and furnace technician shares more here.

Factors That Impact the Timeline

  • Furnace Type: The type of furnace being installed can affect the replacement time. Standard gas or electric furnaces are generally quicker to install than more complex systems like geothermal or high-efficiency models. If you’re upgrading to a larger or more sophisticated unit, the job may take a bit longer.

  • Existing Infrastructure: If your existing furnace and ductwork are compatible with the new system, installation can proceed quickly. However, if changes need to be made to your ductwork, gas lines, or electrical system, additional time will be needed. Sometimes older homes may need extra adjustments to meet modern standards, which could add hours or even a full day to the process.

  • Size and Location: The size of the furnace and where it’s located also play a role. A larger furnace might need more time to install, especially if it’s in a tight or difficult-to-reach space, like an attic or crawl space. The removal of an old, bulky furnace could also add extra time to the overall process.

The Installation Process

Once your new high efficiency furnace has arrived, the process begins with removing the old furnace. This typically takes around an hour, depending on its size and condition. After removal, the technician will install the new unit, ensuring it’s properly connected to the ducts, gas line, and electrical system. This phase usually takes around three to five hours.

After installation, a thorough check is conducted to ensure the furnace operates smoothly. Expect a final inspection, testing, and some minor adjustments that can take another hour.

To ensure a smooth and efficient furnace replacement, contact Countryside Plumbing & Heating, Inc. at (715) 246-2660 or fill out our online form. During consultation, our experts will walk you through the process and provide an estimate for your new furnace cost.