To see if you have a high-efficiency furnace, check for a yellow EnergyGuide sticker or look at the exhaust venting. A high-efficiency furnace converts 90 % or more of its fuel into heat and almost always uses plastic PVC venting instead of metal pipes.
To quickly determine if your furnace is high-efficiency, look at the exhaust venting. High-efficiency furnaces use plastic PVC or CPVC pipes to vent out the side or roof. Standard-efficiency models vent through a heavy metal pipe connected to a chimney.
The $5,000 rule is a guideline to help homeowners decide whether to repair or replace their HVAC system. You multiply the age of your unit by the cost of the needed repair. If that number exceeds $5,000, replacing your HVAC system is often more cost-effective.
Pressure Switch Errors (Codes 31-33 on Carrier/Bryant, 2-3 flashes on Goodman) Despite being the most common furnace error, actual pressure switch failure remains uncommon. Most stem from venting restrictions or drainage issues.
Newer furnaces are 50–60% more efficient than they were 30+ years ago, so you will immediately start to see lower energy bills after installation.
The Basics of The New Gas Furnace Mandate
While the current standard AFUE (Annual Fuel Utilization Efficiency) for a residential furnace is 80%, this mandate will require all gas furnaces to maintain a fuel efficiency rating of 95%.
The heat exchanger is often considered the most costly part of a furnace to repair or replace. It is a critical component that transfers heat from the combustion process to the air that circulates throughout your home. Over time, heat exchangers can crack due to the constant heating and cooling cycles they undergo.
A Bryant furnace typically lasts between 15 and 20 years. With excellent care and annual tune-ups, they can sometimes stretch up to 25 years. However, several factors determine exactly how long yours will run.
A furnace blinking 3 times generally indicates a Pressure Switch Fault (often "stuck open"). This safety mechanism prevents the furnace from igniting if there isn't proper airflow, venting, or vacuum pressure within the system.
The best time to buy a furnace is during the off-season, specifically late spring (April-May) or early autumn (September-October), when HVAC companies are less busy and offer lower prices, rebates, or promotions. Purchasing in these shoulder seasons ensures faster installation times and better negotiating power compared to winter peak season.
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.
The "two-foot rule" in HVAC is a duct design and installation guideline that requires a minimum of 24 inches of straight, uninterrupted space between branch take-offs (where air taps off the main trunk). It is also applied to spacing branches away from end caps, transitions, and the main plenum.
Furnaces typically last 15 to 20 years, but well-maintained units can often operate longer. If your furnace is 25 years old, it likely means you've been maintaining it properly by scheduling annual maintenance and routine care. However, its age puts it at a higher risk for increased repairs and a complete breakdown.
A typical furnace cycle should last 10-15 minutes, with 2-3 cycles per hour during cold weather. Very cold days might require more frequent cycling, but cycles should still last several minutes each.
You should probably Replace if: [ ] The repair costs more than 50% of a new unit. [ ] The furnace is over 15 years old. [ ] You have had to repair it more than once in the last 2 years.
5 Warning Signs It's Time for Furnace Replacement
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.
Based on reliability, efficiency, and industry reputation, the top 3 HVAC system brands are Trane, Carrier, and Lennox. These premium brands are frequently cited for high-quality engineering, superior comfort features, and long-term durability, with Daikin and Mitsubishi also ranking high for technology.
You should have your furnace professionally serviced once a year. This annual check-up is best scheduled in the late summer or early fall, ensuring the unit is safe, energy-efficient, and ready to handle the winter months.
Contrary to what you may initially think, high efficiency furnaces run more often. However, this does not mean that they use more energy. By running more often, they can ensure that your home is kept at a more even temperature without having to work as hard.
Currently, only New York has a statewide natural gas restriction. In May 2023, New York became the first state in the U.S. to restrict natural gas and other fossil fuels in most new buildings.
Yes, eligible R-410A equipment can still be legally installed.