Replacing a furnace typically takes 4 to 10 hours. For most standard swaps in Alpine, UT—where the technician simply replaces an old unit with a similarly sized one using existing ductwork—the job is fully completed in 1 day (usually 4 to 6 hours).
Removing and installing a standard residential furnace typically takes 4 to 10 hours. For most homes with easily accessible units and no major complications, professional technicians can complete the entire removal and replacement process in a single day.
The "$5,000 rule" is a quick, rough guideline to help homeowners decide whether to repair an aging furnace or replace it entirely. It helps you determine if pouring money into an old system is a waste of cash, or if it still has plenty of life left.
The average cost to replace a furnace is between $4,000 and $8,000, including both the unit and professional installation. Your exact price will largely depend on the size of your home, the type of fuel, and the unit's energy efficiency, with basic models starting around $3,000 and premium, high-efficiency systems reaching up to $12,000.
Yes, furnace prices are definitively going up in 2026. Homeowners and contractors are seeing ongoing HVAC equipment increases, with manufacturers like Lennox, Goodman, Daikin, and Amana pushing through price hikes ranging from 2% to 10%.
Federal tax credits for residential furnaces and HVAC systems expired at the end of 2025. If your furnace was installed and placed in service in 2026, it no longer qualifies for the Section 25C Energy Efficient Home Improvement Credit.
A standard residential furnace lasts 15 to 20 years. However, the exact lifespan varies based on the type of system and how well it is maintained.
The best months to buy a furnace are May (late spring) or September (early fall). During these off-season months, heating demand is low, making it easier to negotiate discounted prices, avoid emergency premiums, and secure flexible installation schedules.
Below are some of the best furnace brands for different homeowner priorities:
If you make qualified energy-efficient improvements to your home after Jan. 1, 2023, you may qualify for a tax credit up to $3,200. You can claim the credit for improvements made through December 31, 2025. For improvements installed in 2022 or earlier: Use previous versions of Form 5695.
How Do I Claim a New Furnace on My Taxes? As a homeowner, you can claim a credit on your energy-efficient furnace by filling out Form 1040 (or 1040NR for non-resident aliens). To determine your credit amount, complete the Residential Energy Credits Form 5695.
The most expensive thing to fix on a furnace is the heat exchanger. Replacing it typically costs between $𝟏,𝟎𝟎𝟎 and $𝟑,𝟓𝟎𝟎, primarily because it is a highly labor-intensive job that involves virtually dismantling the entire unit.
A dying furnace often gives clear warning signs before failing completely. The most critical red flags include sudden spikes in your heating bills, uneven heating with lingering cold spots, unusual loud noises, frequent short-cycling, and changes in flame color.
Whether fixing a 15-year-old furnace is worth it depends on the 50% rule: if the repair cost is more than 50% of a new system, or if your unit requires multiple frequent repairs, replacement is generally the smarter financial choice.
What fails first on a furnace? The most common early failures are the furnace ignitor or flame sensor, as they experience regular wear and tear and are critical to starting the heating cycle.
Industry experts and consumer ratings consistently highlight Trane, Carrier, and Lennox as the top three furnace brands. Each excels in a specific category:
Carrier and Rheem are both premier HVAC brands, but they cater to slightly different needs. Carrier leads the industry in premium, ultra-high efficiency and advanced communicating technology. Rheem is celebrated for offering a better balance of day-to-day value, long-term reliability, and easier-to-source replacement parts.
A new furnace for a 2,000 sq. ft. home typically costs between $4,500 and $8,500, fully installed. This covers a standard 60,000 to 100,000 BTU unit, fuel type, and local labor.
Shop around. Getting competitive bids from several contractors will save you money. For large installation jobs, it's common for company-to-company price differences to exceed $1,500 for the same equipment and work. Even for smaller installation jobs, prices vary considerably.
Have HVAC Prices Gone Up in 2026? Yes HVAC prices have steadily increased over the past few years, and 2026 is no exception. These increases are affecting everything from entry-level systems to high-efficiency units, making it more expensive than ever to install or replace HVAC systems.
Set your thermostat to 𝟔𝟖 ∘𝐅 while awake and home. For maximum efficiency and savings, lower the temperature to 𝟔𝟎 ∘𝐅 – 𝟔𝟒 ∘𝐅 while sleeping or when away from the house for the day.
Type of Furnace
Some types of furnaces are more durable than others. For example, oil furnaces are built to last longer but may require more frequent maintenance. Gas and electric models, while easier to maintain, may have shorter lifespans.
Most furnace issues stem from a few common culprits. The easiest to check yourself are clogged air filters and thermostat errors, which usually cause the system to blow cold air, run inefficiently, or cycle on and off constantly. Other frequent problems include dirty flame sensors or failing blower motors.
Most experts recommend having your furnace professionally serviced once a year. The ideal time to schedule this maintenance is in the early fall, right before the winter heating season, to ensure the unit is operating safely, efficiently, and reliably.