| December |
 |
- Check air ducts
- Check for excessivesnow on roof
- Clean furnace filter and heat recovery ventilator (HRV)
- Clean humidifier
- Check and reset ground fault circuit interrupter (GFCI)
- Test smoke alarms and carbon monoxide detectors
|
| January |
 |
- Clean furnace filter and HRV
- Check furnace fan belt
- Check water heater
- Check exhaust fans
- Clean humidifier
- Remove snow and ice from roof overhang/vents
- Check and reset GFCI
- Test smoke alarms and carbon monoxide detectors
|
| February |
 |
- Clean furnace filter and HRV
- Check inside surfaces
- Remove snow and ice from roof overhang/vents
- Check and reset GFCI
|
