A heat pump is designed to maintain a steady temperature, working gradually and efficiently. Avoid large temperature set backs. If you can't resist adjusting your thermostat, try not to lower the set point by more than 2ᵒC or so in colder weather to minimize significant fluctuations.
Heat pumps operate most efficiently when holding a steady temperature.
The heat pump will work to maintain the ideal temperature by cycling on-and-off as needed. In contrast to other systems, such as electric baseboard heating, you should resist the temptation to turn your heat pump down at night, or when you leave the home.
What the experts say. Our most trustworthy port of call for all things energy-efficiency, the Energy Saving Trust confirms that leaving your heating on all day in order to save money is a myth. According to them, having your heating on only when you need it is always best.
If you're away for long periods, consider lowering the temperature instead. Conclusion: In general, for most modern heat pumps and well-insulated homes, leaving the heat pump on all day at a consistent temperature can be more energy-efficient and cost-effective than frequently turning it off and on.
Although it seems counter-intuitive, a heat pump runs at its most efficient if it is left on all the time, rather than short blasts of heat in the morning and evening. This is because it is far easier to maintain a cosy temperature than it is to heat up your home from a cold baseline.
It's normal for your heat pump to run fairly constantly in the winter time. With low temperatures, your pump will be working nonstop for hours to ensure your home stays warm. But if your heat pump is working overtime in the spring or summer when temperatures are milder, you may have an issue!
Keeping your home at a constant temperature generally means that your HVAC system will run constantly to meet it. This means that your furnace or air conditioner may run when you're asleep, at work, or out of the house. This wastes more energy than the minimal amount that you might save by having it constantly run.
Although turning your heat on and completely off frequently can raise energy bills, you can actually save a lot of money by turning your heat down when you are not at home and keeping it at a reasonable temperature when you are.
Most of the time, maintaining a comfortable temperature all day in the winter will cost more money than raising it a few degrees when you get home. You don't have to shut it down altogether, but can set it to a low temperature like 58 or 60 degrees.
Heat pumps do not operate as efficiently when temperatures drop to between 25 and 40 degrees Fahrenheit for most systems. A heat pump works best when the temperature is above 40. Once outdoor temperatures drop to 40 degrees, heat pumps start losing efficiency, and they consume more energy to do their jobs.
' To achieve an optimal balance between performance and energy usage, we recommend that you set your heat pump / air conditioner temperature between 23-26 degrees (cooling) in summer and 18-21 degrees (heating) in winter.
A heat pump that runs all the time doesn't necessarily signify that there is a problem. When it's very cold outside, your heat pump will work harder to meet the heat demands in your home. Therefore, it may run continuously in order to warm your house to the temperature you've set your thermostat to.
If you leave your heat pump on all the time, it will experience accelerated deterioration. In turn , your heat pump unit could experience costly repairs and premature system breakdowns.
Know your temperatures
There is a middle point that'll help you with both. Set your heat pump temperature to 18 degrees or above to help fight damp and mould, but below 21 degrees to save on power. The higher the temperature, the more energy the heat pump will use, so anywhere between 18 and 21 is the sweet spot.
To save money on heating, the Department of Energy recommends turning your thermostat from 68°F to 70°F while you're awake and even lower when you're sleeping or away from home.
Ultimately, there are very few situations where shutting off your system will lead to lower utility bills or savings. That's because adversities and potential damage usually arise when you power off your furnace. During winter, it's especially risky to keep your furnace off for any period.
1. Gas boiler. A gas boiler is still the cheapest way to heat your home when comparing various heating systems, especially when analysis the latest figures from Ofgem. As of December 2024, the cost of gas is 6.24p per kWh, a 10% increase on the previous quarter, and still higher year-on-year.
According to the experts at the Energy Saving Trust, the idea that you can save money by keeping your central heating permanently on low is a myth. This is mainly because of problems with home insulation.
A range of 68-70 is the best setting in winter if you want to save money because your furnace or heat pump doesn't have to work as hard as it does to reach a higher set temperature. The DOE says the smaller the difference is between the indoor and outdoor temperatures, the more you can save.
68 to 72 degrees is a temperature range that is not too warm or cool, and is sufficient enough to warm up the home just enough so that everyone is comfortable regardless of the type of clothing they have on.
No, heat pumps do not need to run constantly in the winter. Most heat pumps are designed to cycle on and off as needed to maintain a comfortable temperature in your home. That said, if it is very cold outside, it may need to run continuously at times to maintain warmth in your home.
Keeping your heat pump on when it's not needed can lead to even higher power bills and cause your system to break down faster than it should. If you'd like return to a perfectly warm home, instead of leaving your heat pump on all day, you can set the programmable timer instead!
Optimal Heat Pump Settings for Summer
During the summer months, the ideal setting for your heat pump is around 78 degrees Fahrenheit (25.5 degrees Celsius) according to the US Department of Energy. This setting allows the heat pump to efficiently cool your home while reducing humidity and energy consumption.