Furnace Installation in Toledo, OH
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Lucas County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, and nights near 22°F
Furnaces in Lucas County run from October through May, eight months of the year. On the coldest nights the average low is 22°F, so the unit going in has to hold up under a long season, not just a few cold snaps.
Most homes here heat with gas, and any non-weatherized gas furnace built since November 2015 has to reach at least 80 percent AFUE. That is the floor, not a feature, so ask what a contractor is installing above it. Ohio also sees its share of winter storms and damaging wind, and 18 percent of households in the state went at least a day without power in 2024. A furnace that comes back on by itself when the power does is worth knowing you have, before the night you need it.
- 8 months
- October through May, your furnace is on duty
- 22°F
- the average winter night it heats against
- 75%
- 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 $140 a year to run in Lucas County compared with a gas furnace.
Estimates for a typical Lucas 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 license is required for this job depends on where in Lucas County the house sits, since Ohio leaves that decision to the county rather than setting one rule statewide. The state does define what a home contractor is, and that definition requires carrying at least $250,000 in liability insurance. That is not a license and nothing was tested to meet it, but it applies no matter which county the house is in.
With no state license standing behind this job, the protection comes from the permit process instead. A furnace installation in most cities and counties needs a permit from the local building office, and the finished work gets inspected before it's signed off. In Lucas County, 75.3% of homes heat with gas, and this furnace is one of them.
Source: Ohio Legislative Service Commission
- What size furnace does my house need?
- It depends on a load calculation, not the square footage alone. A contractor works out the right size by looking at your home's insulation, window area, ceiling height, and layout, because two houses the same size can need different furnaces. A furnace that's too big will short cycle and wear out faster. One that's too small will run constantly and still not keep up on a 22°F night. Ask whoever quotes the job to walk you through their calculation rather than just naming a number.
- How do I know it's time to replace my furnace?
- A furnace that's aging and needs frequent repairs is usually the one to replace rather than fix again. Watch for rooms that won't heat evenly, a burner flame that's yellow instead of blue, or a furnace that cycles on and off more than it used to. Rising repair calls are a sign the furnace is wearing out even if it still runs. With heat needed here from October through May, a furnace on its way out is worth replacing before it fails on one of those 22°F nights rather than after.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and how much you run the furnace. Homes here need heat for about 8 months of the year, so a more efficient furnace has a lot of months to earn back the difference in fuel use. Any furnace made since November 2015 already has to hit at least 80 percent AFUE, so the real choice is between that baseline and the higher-efficiency models above it. Most homes here heat with gas, so a contractor can walk through the options and say what fits your setup.