Furnace Installation in Brunswick, OH
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Medina County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, on a furnace built for a bad night
Brunswick homes need the furnace running from October through May. Winter nights average 22°F, and most of those homes heat with gas, so the furnace is doing real work most of the year, not just on the coldest week.
A new furnace here has to be ready for outages too. Ohio saw 18% of households lose power for 24 hours or more in 2024, and Medina County has logged 15 winter storms and 64 damaging wind events over the past ten years. If the furnace is a gas model made after November 19, 2015, it has to meet 80.0 percent AFUE by law, so any new install already starts at that mark.
- 8 months
- October through May, your furnace is on duty
- 22°F
- the average winter night it heats against
- 73%
- 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 Medina County compared with a gas furnace.
Estimates for a typical Medina 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.
Medina County sets its own rule for who can do this work, since Ohio leaves HVAC licensing to the counties rather than handling it at the state level. There is no state license behind a contractor working here, and no state exam or state record of who is qualified. Ohio does define what a home contractor is, and that definition includes carrying at least $250,000 in liability insurance, but that is a definition written into the law, not a license anyone had to earn.
For a furnace installation, the protection comes from the local building office rather than from a license. Replacing a furnace typically needs a permit, and the finished work gets an inspection before it is signed off. That inspection is what catches a bad gas connection or an unsafe vent, which is the part of this job that matters most for safety. Most homes in Medina County heat with gas, so that check is not a formality here.
Source: Ohio Legislative Service Commission
- What size furnace does my house need?
- The right size comes from a load calculation, not a rule of thumb based on square footage alone. A contractor measures your windows, insulation, ceiling height, and how much wall faces outside, then works out how much heat your house actually loses on a cold night. With winter lows here averaging 22°F, a furnace that's undersized will run constantly and still fall behind. One that's oversized will short cycle, wearing out its parts faster and leaving rooms uneven. There's no shortcut that replaces this calculation for your specific house.
- How do I know it's time to replace my furnace?
- Watch for repairs that keep coming back, a heat exchanger crack, or a furnace that can't keep the house warm through the coldest nights. Homes here need heat from October through May, so a furnace on its way out gets tested for eight months straight, not just a few cold snaps. If yours is old enough that parts are hard to find, or a technician has flagged the heat exchanger, replacing it before it fails outright is worth considering. A contractor can look at its condition and give you a straight answer on whether it's worth repairing again.
- Is a high-efficiency furnace worth it?
- It depends on how much you heat and what you're comparing it to. Every non-weatherized gas furnace made since November 2015 has to hit at least 80 percent AFUE, so even a standard model today isn't wasteful. A high-efficiency furnace goes further than that minimum, pulling extra heat out of the exhaust before it leaves the house instead of sending it up the flue. With 8 months of heating a year here and most homes on gas, that extra bit of efficiency gets used far more than it would somewhere with a short winter. A contractor can walk you through the models available and what each one means for your house.