Tip
Quarterly checklist
Spring (March-May)
- HVAC tune-up (AC service before heat hits)
- Replace filter
- Inspect AC outdoor unit — clear leaves, debris, vegetation within 2 ft
- Check attic insulation depth
- Switch ceiling fans to counter-clockwise (cooling)
- Service refrigerator coils (vacuum behind/below)
Summer (June-August)
- Close blinds/curtains during peak sun on south/west exposure
- Run dishwashers and laundry after 8 PM (off-peak in time-of-use rate plans)
- Set thermostat 78°F daytime, allow 4-7°F setup overnight (rather than setback)
- Check window AC unit weatherstripping
Fall (September-November)
- HVAC tune-up (furnace before cold)
- Replace filter
- Switch ceiling fans clockwise on low (push warm air down)
- Caulk window perimeters and door frames
- Replace door weatherstripping if compressed
- Drain and shut off exterior faucets
- Reverse direction of attic vents if applicable
Winter (December-February)
- Set thermostat 68°F daytime, 60-62°F overnight
- Open south-facing blinds during the day (passive solar gain)
- Close fireplace damper when not in use
- Run bath fans only during/right after showers (don't leave running)
- Check carbon monoxide detector