There are two types of heat pumps, air-source, and ground-source. Air-source heat pumps are less expensive to install but are less efficient in colder climates.
Ground-source heat pumps are more expensive to install but are more efficient in all climates.
Are Heat Pumps Warm Enough In The Winter?
Yes, whether you choose an air source or ground source heat pump, you can be confident that your home will be warm enough in the winter. In fact, heat pumps are so efficient at heating that they are often used in countries with very cold climates.
Air Source Heat Pumps In Cold Weather
In the winter, an air-source heat pump extracts heat from the outside air and uses it to heat the home.
In very cold weather, the heat pump has to work harder to extract enough heat from the air, and it can’t always keep up with the demand.
Ground Source Heat Pumps In Cold Weather
In winter, a ground-source heat pump extracts heat from the ground and uses it to heat the home.
The ground temperature is much more stable than the air temperature, so a ground-source heat pump can provide reliable heating even in very cold weather. However,ground-source heat pumps are more expensive to install than air-source heat pumps.
Sweden (650,000 units installed) and Germany (410,000 installed) are the two main European countries that use heat pumps for space heating on a large scale (iea.org).
Other countries, such as Austria, Denmark, France, and Switzerland also have a high number of installations.
In all of these countries, the average ground temperature is similar to that in the UK (between 10 and 15 degrees Celsius), but air source heat pumps are more prevalent than ground source heat pumps.
The climate in the southern US states is generally milder than in Europe, so air-source heat pumps are more common there.
What Temperature Is A Heat Pump Not Effective?
An air-source heat pump is not as effective when the temperature when temperatures drop to between 25 and 40 degrees Fahrenheit.
This is down to the fact that the heat pump has to work harder to extract enough heat from the cold air.
However, a ground source heat pump can still work well even when the temperature drops to below zero.
This is because the ground temperature is much more stable than the air temperature.
How To Keep My Heat Pump Working In The Winter?
There are a few things you can do to keep your heat pump working in the winter:
- Ensure debris is cleared from around the unit, as this can obstruct airflow and prevent the heat pump from working properly.
- Have your heat pump serviced regularly to ensure it is in good working condition.
- Install a windbreak around the heat pump to protect it from cold winds.
- Consider installing a ground-source heat pump, as they are more effective in cold weather.
What Setting Should My Heat Pump Be In For Winter?
Your heat pump should be set for 68°F according to the Department of Energy. This is the temperature that is most comfortable for people and also uses the least amount of energy.
You can lower the temperature if you are going to be away from home for a period of time, but you should not go below 55°F. This is because the heat pump will have to work harder to raise the temperature back up when you return.
Why Is My Heat Pump Blowing Cold Air In The Winter?
There are a few reasons why your heat pump might be blowing cold air in the winter:
- The thermostat might be set to “cool” instead of “heat.”
- The temperature setting on the thermostat might be too low.
- The filters might be dirty, which can restrict airflow and prevent the heat pump from working properly.
- Debris might be blocking the airflow around the unit.
- The heat pump might need to be serviced.
Underfloor Heating Works Best
Where possible, see if you can have underfloor heating installed as this works best with a heat pump. This is due to the heat being distributed evenly and efficiently around the room.
You’ll also find that you are not constantly turning the thermostat up and down as you would with other heating systems.
How Do You Choose Between An Air Source And A Ground Source Heat Pump?
There are several factors to consider when choosing between an air source and a ground source heat pump:
Cost: Air source heat pumps are cheaper to install than ground source heat pumps.
Efficiency: Ground-source heat pumps are more efficient than air-source heat pumps, but they are also more expensive to install.
Space: You need more space for a ground source heat pump as it requires an underground loop system. This means that it is not suitable for everyone.
Climate: If you live in an area with a cold climate, then a ground source heat pump would be better as it can still work well even when the temperature drops below zero.
In conclusion, heat pumps are a very efficient way to heat your home and can be used in all climates.
They are most effective when the temperature is above freezing, but they can still work well in colder weather.
You can improve the performance of your heat pump by ensuring it is well-maintained and by installing a windbreak if you live in a cold climate.
Underfloor heating works best with a heat pump as it evenly distributes the heat around the room.