Furnace Installation in Hendersonville, TN
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Sumner County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and nights that drop to 30°F
Hendersonville needs a working furnace from October through April, seven months out of the year. Winter nights average 30°F, so the furnace is lighting and shutting off night after night for most of the year.
57 percent of homes here heat with electricity, and Sumner County has seen 13 winter storms and 151 damaging wind events over the past ten years. A new furnace goes in knowing the power can go out with it. If it burns gas, federal rules require it to reach at least 80 percent AFUE, so any new gas furnace installed here already meets that standard.
- 7 months
- October through April, your furnace is on duty
- 30°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
- What size furnace does my house need?
- It depends on your home's square footage, ceiling height, insulation, window count, and layout, so there is no single number that fits every house. A furnace that is too big will short cycle, heating the house in bursts and wearing out faster. One that is too small will run constantly on a 30°F night and still fall behind. A contractor works this out with a load calculation that looks at your actual house, not a rule of thumb based on square footage alone.
- How do I know it's time to replace my furnace?
- Watch for uneven heat between rooms, a furnace that runs longer than it used to, or repairs that keep coming back. Furnaces here run from October through April, seven months a year, so a unit that struggles in that stretch is working under real load, not just idling. Rising utility bills with no change in how you use the house is another sign the heat exchanger or blower is losing efficiency. If a technician has been out more than once this season for the same problem, that is usually the point to start pricing a replacement instead of another repair.
- Is a high-efficiency furnace worth it?
- It depends on how much heat your house needs and how long you plan to stay in it. Any gas furnace made since November 2015 has to reach at least 80 percent AFUE, so even a standard model here is not wasteful. A high-efficiency furnace burns less gas to produce the same heat, and with seven months of heating season here, that difference adds up over a winter more than it would somewhere milder. A contractor can walk through the actual models and what each one would mean for your house before you decide.