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CoP (Coefficient Performance) is a measurement that tells you how efficient your heating system is. The higher the number, the better the system.

A CoP above 3 is considered highly efficient, and typical CoPs range from about 2.5 to 4.

This means, if your CoP is 4, your ground source heat pump is producing 4 kilowatts of heat energy for every 1 kilowatt of electrical power it uses.

No, you don’t need a hot water tank with a ground source heat pump, but it’s beneficial to have one.

Ground source heat pumps can produce hot water, but a tank allows you to store it so it’s ready on demand.

You also have some other options when it comes to supplying your home’s hot water demand, such as using a desuperheater.

These devices take waste heat from the pump and use it to heat water, further improving the efficiency of the system.

While these are great in the summer, they can’t usually handle the typical hot water demand of a home, so these are also used in conjunction with hot water tanks for storage purposes.

No, ground source heat pumps are one of the most efficient heating systems there are. They do use electricity, but they produce far more energy than they consume.

An electric boiler, for example, has a CoP of about 1. This means that it converts almost 100% of the electricity it consumes into heat energy.

Ground source heat pumps, on the other hand, have a CoP of around 3, meaning they produce triple the amount of heat energy than they consume in electrical power.