Cool Mornings, Hot Afternoons: Heating and Cooling in Santa Rosa
On many summer days in Santa Rosa, the morning starts cool and grey and the afternoon turns hot and bright. Your system can handle that swing smoothly with the right settings.
Request an HVAC technicianUse the morning cool
When the morning is cool, open windows to bring in fresh air, then close them and the blinds before the sun burns through the fog. The house stays cooler well into the afternoon.
Auto changeover
A thermostat with auto mode can switch between heating and cooling on its own. Keep a few degrees between the heat and cool settings so the system doesn't flip back and forth.
Block the afternoon sun
West-facing windows take the strongest afternoon sun. Close blinds or use exterior shades before the heat builds rather than after.
Steady settings
Large swings in the thermostat setting make the system work harder to catch up. Small, steady adjustments are usually more comfortable and efficient.
Upstairs rooms
Heat rises and attics trap it, so upstairs rooms often run warmer. Balancing airflow and sealing attic ducts help more than lowering the thermostat.
Heat pumps shine here
A heat pump handles both modes with one unit, so switching from morning heat to afternoon cooling doesn't mean two separate systems.
Night cooling
Evenings often cool off as the fog returns. Turning the AC off and opening windows after sunset can cool the house for free on many nights.
Smoke days
When smoke is in the air, keep windows closed and let the system recirculate through a clean filter instead.
More help
See thermostats and heat pumps.
Ceiling fans
Ceiling fans make a room feel cooler without changing the thermostat. Set them to spin counter-clockwise in summer and switch them off in empty rooms.
More heating and cooling guides
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