Furnace Installation in Terre Haute, IN
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Vigo County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, in a county that loses power
Vigo County needs a working furnace from October through April, seven months a year. Winter nights average 23°F, and a furnace built for that has to cycle on and off through the whole stretch without the burner or its igniter wearing out early.
48.1% of homes here heat with electricity, and the region has logged 49 damaging wind events and 5 winter storms over the past ten years. Across Indiana, 17% of households went at least 24 hours without power in 2024. A furnace that needs electricity to run stops working the moment the lines go down. Any new gas furnace installed now has to reach at least 80.0 percent AFUE, the federal minimum, so ask what rating comes with the one going into your house.
- 7 months
- October through April, 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
In Indiana, HVAC licensing for homes is left to the counties and cities.
Indiana does not run a state HVAC license, and the facts here do not say whether Vigo County runs its own. What licensing exists depends on the city or county, so whether a contractor is tested or on record anywhere is a local question, not a state one. Nothing at the state level is checking who installs a furnace here.
For this job, the permit is what stands in for a license. Installing a furnace in most cities and counties needs a permit from the local building office and an inspection once the work is done. That inspection is what catches a bad gas connection or a venting mistake, the part of a furnace install that can hurt someone. The permit and inspection are what the facts point to for this job.
Sources: Indiana Department of Workforce Development · State of Indiana
- What size furnace does my house need?
- It depends on your square footage, your insulation, your windows, and your home's layout, so there is no single number that fits every house. A contractor works this out with a load calculation, which looks at how much heat your house actually loses on a cold night rather than just its size on paper. Guessing on size costs you either way. Too small and it runs constantly trying to keep up on the cold nights you get here, when lows average 23°F through the winter. Too large and it short cycles, heating the house in bursts and wearing out sooner. Have a contractor run the calculation for your specific house rather than going by the old furnace's rating or a square footage chart.
- How do I know it's time to replace my furnace?
- Watch for a few signs together, not just one. If it is struggling to keep the house warm through the stretch from October to April, if your gas bills have crept up while it works harder for the same result, or if a contractor has been out for the same repair more than once, that furnace is telling you something. Age matters too. An older furnace is working with older parts, even if it still runs, and if yours needs a repair and has years behind it already, replacing it often makes more sense than sinking more money into a machine on its way out. A contractor can look at the specific unit and tell you whether it is worth fixing again.
- Is a high-efficiency furnace worth it?
- For a house that needs heat seven months a year, the way yours does here, a high-efficiency furnace has more months to earn back the difference than it would somewhere with a short winter. Furnaces built since November 2015 are already required to hit at least 80 percent AFUE, so even a standard new furnace is more efficient than an older one you might be replacing. A high-efficiency model goes further than that, meaning less of the gas you pay for goes out the vent unused. Whether the higher upfront cost makes sense for your house depends on your current furnace, your gas rates, and how long you plan to stay in the home. A contractor can walk you through the actual models and numbers for your situation.