Furnace Installation in Troy, OH
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Miami County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat in Troy asks a lot of a furnace
Winter nights here average 23°F, and homes in Troy need the furnace running from October through May. That's eight months a year the burner is lighting and the blower is moving air.
57.8 percent of homes here heat with gas. Any new gas furnace has to meet a federal minimum of 80.0 percent AFUE, so it turns at least that much of the fuel it burns into heat. Miami County has logged 8 winter storms and 69 damaging wind events over the past ten years, and in 2024, 18% of Ohio households lost power for a full day or more. A furnace that comes back on by itself once the power does matters here.
- 8 months
- October through May, your furnace is on duty
- 23°F
- the average winter night it heats against
- 58%
- of homes here heat with gas, so most furnaces here burn gas
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
A high-efficiency gas furnace would save about $130 a year to run in Miami County compared with a gas furnace.
Estimates for a typical Miami County home, from EIA household energy data, Ohio fuel prices and NOAA climate normals. Your home will differ.
In Ohio, HVAC licensing for homes is left to the counties.
Whether a contractor here needs a license depends on Miami County's own rule, since Ohio leaves that decision to the counties rather than setting one statewide. Ohio does define what a home contractor is, and that definition includes carrying at least $250,000 in liability insurance, but that is a description of the business, not a test anyone has to pass or a license the state issues.
For a furnace installation, the protection you have comes from the local building office rather than from a state license. Most cities and counties require a permit for a furnace replacement and an inspection once the work is done, and that inspection is what catches a bad gas connection or a flue that was not run right. Gas is the part of this job where a mistake is dangerous, and the permit inspection is what stands between you and that mistake in Miami County.
Source: Ohio Legislative Service Commission
- What size furnace does my house need?
- There's no single number that fits every house. A contractor runs a load calculation on your specific home, looking at square footage, ceiling height, window count and placement, insulation, and how the place is laid out. Guessing high doesn't help you here. An oversized furnace cycles on and off too fast and never runs long enough to heat evenly, while one that's too small will run constantly on a night near 23°F and still fall behind.
- How do I know it's time to replace my furnace?
- Age is the first thing to check, along with how often it's been repaired. If a contractor has already replaced a major part like the heat exchanger or the inducer motor once, the next big failure is usually the sign to stop repairing and start planning a replacement. Watch also for uneven heat between rooms, a furnace that short cycles, or a jump in gas bills with no other explanation. With 8 months of heating season ahead of you here, it's worth sorting out before the cold nights hit.
- Is a high-efficiency furnace worth it?
- For a house that needs heat from October through May, the efficiency rating matters more than it would somewhere milder. Any furnace built since November 2015 has to reach at least 80 percent AFUE, so the real choice is between that baseline and a furnace rated higher. A higher-rated furnace turns more of the gas you burn into heat instead of losing it out the flue. Over 8 months of runtime a year, that difference adds up more here than it would in a place with a short winter. A contractor can walk through which efficiency level makes sense for your house.