Furnace Installation in Flemington, NJ
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Hunterdon County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, and nights near 23 degrees
Flemington homes need the furnace on from October through May. That's most of the year, and on winter nights that average 23°F, a furnace with any real problem shows it fast.
Any furnace installed new has to hit 80 percent AFUE at minimum, that's the federal floor for gas furnaces built since November 2015. Almost half the homes in this area heat with gas, and with 20 winter storms and 154 damaging wind events recorded here over the past decade, a furnace that starts reliably matters when the power is also on the line.
- 8 months
- October through May, your furnace is on duty
- 23°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
A high-efficiency gas furnace would save about $140 a year to run in Hunterdon County compared with a gas furnace.
Estimates for a typical Hunterdon County home, from EIA household energy data, New Jersey fuel prices and NOAA climate normals. Your home will differ.
New Jersey requires HVAC contractors to hold a state license.
The state license comes from the Board of Examiners of Heating, Ventilating, Air Conditioning and Refrigeration Contractors, and it covers the contractor, not the individual job. Towns and cities in Hunterdon County cannot add their own HVAC license on top of it, so the same state credential applies wherever you are in the county.
For a furnace installation, the license is what makes the state hold this contractor accountable for the work. The part that still runs through your local building office is the permit and inspection, which most towns require once a furnace is replaced. Close to half the homes in Hunterdon County heat with gas, which is why that permit and inspection matter alongside the license itself.
Sources: New Jersey Legislature · New Jersey Division of Consumer Affairs
- What size furnace does my house need?
- It depends on the size of your house, how well it's insulated, and how many windows it has facing north. A contractor works this out with a load calculation, not a chart based on square footage alone. Getting the size right matters more than most people realize. A furnace that's too big will short cycle, turning on and off more than it should, and one that's too small will run constantly on the coldest nights and still not keep up. With winter lows here averaging 23°F, undersizing shows up fast.
- How do I know it's time to replace my furnace?
- If your furnace is having trouble keeping the house warm, cycling on and off more than it used to, or needing repairs more often, it's telling you something. Age matters too. Furnaces installed new today have to meet 80 percent AFUE, so if yours is much older, it's likely running well below that. Homes here need heat from October through May, eight months a year, so a furnace on its way out doesn't get much of a break to reveal itself gradually. A contractor can tell you whether what you're seeing is a repair or the start of the end.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and how much you're paying to heat it now. A high-efficiency furnace burns less gas to produce the same heat, and with heat needed eight months a year here, that difference adds up over a season more than it would somewhere milder. Almost half of homes in Hunterdon County heat with gas, so this is a real question for a lot of people here, not a niche one. A contractor can walk you through what efficiency level makes sense for your house and your budget.