We\u2019ve discussed before on this blog some of the more effective ways to use your home\u2019s heating and cooling system so that you enjoy comfort all through the day and night without excessive energy waste. In this post, we\u2019ll look at a question that people who use heat pumps during the winter to warm their homes often ask: \u201cShould I leave the heat pump running at night?\u201d If you\u2019ve asked this question to non-professionals, you\u2019ll likely hear different answers. We\u2019ll get to the bottom of what the best practices are.<\/p>\n
Heat pumps are highly efficient comfort devices. This is one of their major appeals, and why homeowners often choose a heat pump as their primary source for heat during the winter. (Compared to an electric furnace, a heat pump is a huge money-saver.) However, this efficiency leads to the misunderstanding that it\u2019s more efficient to keep them operating all through the night.<\/p>\n
If you live in a home with effective insulation, it will take a few hours at night for the temperature to drop after you shut off the heating. The heat pump won\u2019t need to turn on for this time to heat up the house, so there isn\u2019t much point having it on at all. If the house has poor insulation, the temperature will drop faster, but the heat pump will produce heat that simply flees outside and goes to waste. You\u2019re simply better off with the heat pump turned off at night and thick covers on your bed.<\/p>\n
This is where a programmable thermostat comes in extremely<\/em> handy, because you can achieve a middle ground between \u201cheat pump on all night\u201d and \u201cheat pump off all night.\u201d Program a set-back temperature for the heat pump at night (8\u00b0 to 10\u00b0 cooler than during the day), so it will only come in cases of extremely low heat. Set the thermostat to turn the heat pump back up to a warmer temperature about a half hour before you plan to wake up; that way, you can start the day with a warm home.<\/p>\n