Wall Heater and Floor Furnace Repair in Big Bear
Free referrals to independent local heating contractors serving Big Bear Lake, Big Bear City, and nearby mountain communities.
Many older Big Bear cabins heat with gas wall furnaces or floor furnaces instead of a ducted system. Common problems are pilot lights that won't stay lit, failed thermocouples, dirty burners, and blocked vents. HomeGuide puts a thermocouple replacement at $100 to $300 nationally. Have very old units checked for safe venting.
Last reviewed October 19, 2026.
How are wall and floor furnaces different?
A wall furnace is a gas heater built into a wall that heats the room around it, sometimes with a small fan. A floor furnace sits under a grate in the floor. Both are common in older cabins built before ducted systems were typical. The Census reports a median build year of 1976 for homes in Big Bear Lake, so many homes have older heating equipment.
What usually goes wrong?
- Pilot won’t stay lit: often a failing thermocouple or a dirty pilot assembly.
- No flame at the main burner: gas valve or thermostat problem.
- Weak heat or a yellow flame: dirty burners or poor combustion air.
- Odors or soot: venting problems, which need prompt attention.
Are older wall heaters safe?
They can be when maintained and properly vented, but age matters. A technician should check the vent, the heat exchanger, clearances to furniture and curtains, and the gas valve. Keep the area in front of the heater clear, and never cover a floor furnace grate with rugs.
Should you repair or replace a wall furnace?
Repair makes sense for common parts like thermocouples and valves. If the unit is very old, parts are hard to find, or the heat exchanger is damaged, a replacement wall furnace, a direct-vent heater, or a ductless heat pump may be worth pricing.
When should you call an emergency furnace pro in Big Bear?
Call for urgent help, and leave the house first where noted, if any of these apply:
- You smell gas (a rotten-egg odor): leave right away without flipping switches, then call 911 or your gas utility (Southwest Gas in the Big Bear Valley) from outside.
- A carbon monoxide alarm sounds, or people feel headache, dizziness, or nausea that eases outdoors: get everyone into fresh air and call 911.
- There is no heat and indoor temperatures are dropping toward freezing, especially with infants, older adults, someone with a medical condition, or water pipes at risk.
- The furnace trips the breaker repeatedly, smells like burning wiring, or shows scorch marks.
- You see flames outside the burner area, heavy soot, or a lazy yellow flame instead of a steady blue one.
- A vacant cabin's thermostat or smart sensor reports the house is losing heat during a cold spell.
If you smell gas or a carbon monoxide alarm goes off, leave the building first and call 911 or your gas utility from outside. Don't wait for a contractor.
Where is wall & floor furnace repair help available near Big Bear?
Requests are taken from Big Bear Lake and these nearby communities:
What do people ask about furnace repair in Big Bear?
Why won't my wall heater pilot stay lit?
The usual cause is a worn thermocouple, which shuts off gas when it can't sense the pilot flame. A dirty pilot or drafts can also cause it. HomeGuide's national estimate for a thermocouple replacement is $100 to $300.
Can I put furniture in front of a wall heater?
Keep the clearances listed on the heater's label. Furniture, curtains, and bedding too close to a wall heater are a fire risk.
Do wall heaters need a CO alarm?
Yes. Any gas-burning heater can produce carbon monoxide, and California law requires CO alarms in homes with fossil-fuel appliances.
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