Furnace Repair in Brunswick, OH
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers Medina County will get in touch.
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Eight months of heat puts real wear on a Brunswick furnace
From October through May, your furnace is the thing standing between your house and a 22°F night. That's eight months of the burner lighting, running, and shutting off, day after day. Every one of those cycles puts a little more wear on the igniter and the parts that control the flame.
Most homes in Brunswick heat with gas, and a gas furnace still needs power to run the blower and controls. Medina County has seen 15 winter storms and 64 damaging wind events over the past ten years, and across Ohio, 18% of households lost power for a full day or more in 2024. When the power drops on a cold night, a furnace that was already working hard is the one that may not come back on.
- 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
- 15 winter storms
- in ten years, the nights a failure hurts most

NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $170 a year off heating for a typical Medina County home.
Estimates for a typical Medina County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Ohio fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed and the heat exchanger is sound.
Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.
In Ohio, HVAC licensing for homes is left to the counties.
Medina County decides who can do this work, because Ohio leaves HVAC licensing to the counties instead of handling it at the state level. There is no state exam and no state record for this job here. Whatever rule applies comes from the county office, not from Columbus. Ohio does define a home contractor as someone carrying at least $250,000 in liability insurance. That is a definition tied to the business, not a license earned by testing.
For a furnace repair, the part that matters most is the gas connection, since a bad one is what makes the job dangerous. Ohio's rule does not put a state license behind that check here. It only requires the contractor to carry that insurance. In Medina County, 72.7% of homes heat with gas, so this is a repair the county sees often.
Source: Ohio Legislative Service Commission
- Why won't my furnace turn on?
- Start with the thermostat and the power switch, since those cause more no-heat calls than anything inside the furnace. Check that the thermostat is set to heat and a few degrees above room temperature, and confirm the switch that looks like a light switch near the furnace is on. After that, check the breaker and the filter, since a filter packed with dust can make the furnace shut itself off. If all of that checks out and the furnace still won't start, a contractor can test the igniter, the flame sensor, and the pressure switch, since any one of those can stop the cycle before it starts.
- Why is my furnace blowing cold air?
- In most cases the furnace is still warming up, since it pushes air through the ducts before the burners have fully heated it. If the air stays cold for more than a few minutes, the igniter or flame sensor may be failing to light the burners at all, so the blower runs with nothing to warm the air. A dirty flame sensor is a common cause and one a contractor can clean rather than replace. If the thermostat fan is set to "on" instead of "auto", the blower runs constantly, including between heating cycles, which can feel like cold air with the furnace off.
- Why won't my furnace pilot light stay lit?
- A pilot that won't stay lit usually means the thermocouple has worn out. That's the small sensor that sits in the pilot flame and tells the gas valve the flame is burning. Once it wears out, it reads the flame as out even when it isn't, and the valve shuts the gas off. A draft blowing out the pilot or a buildup of dirt in the pilot assembly can cause the same problem, so a contractor will check both before replacing anything. Newer furnaces with electronic ignition don't have a pilot light at all, so this points to an older unit.


