Questions tagged [heat-pump]

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2answers
42 views

What makes swimming pool heat pumps unsuited for home use?

I noticed that heat pumps for swimming pools are a lot cheaper than equivalent heat pumps for home use. What could be the reasons for this? To give an idea, a 16kW monoblock heat pump based on R32 (...
2
votes
1answer
50 views

How more efficient are low surface temperature radiators than traditional boiler systems?

I've recently come across low surface temperature radiators (E2 technology) as a form of heating. Unlike a traditional water radiator they operate at 30 - 50 C instead of 75 C. Small fans pull air ...
4
votes
1answer
183 views

Air source heat pumps: does prevailing wind matter?

Part of an air source heat pump is a fan to circulate air over the refrigerant circuit. Is it less efficient (and by how much) to point this fan into the prevailing wind? Or does it not matter (i.e. ...
4
votes
2answers
350 views

Optimal aspect to position air source heat pump (south/east/west)?

There is much conflicting information on this, e.g. Nu-heat: Bear in mind that your heat pump will need to work harder if it is situated in a cooler, north-facing, shady position, than if it is ...
0
votes
1answer
37 views

heat pump ecodan noise: constant or variable

I have just seen an Ecodan PUHZ-W85VAA in action at the house of the salesman. It running very quietly, but I wanted to know will it get louder as the weather gets colder? In other words does the pump ...
10
votes
2answers
152 views

What is the actual efficiency of an air to air heat pump in the winter

We are looking at air to air heat pumps (aka reverse cycle AC units) to replace our existing electrical heaters. Air to air heat pumps claim a COP of 3 or 4 to 1 in the manufacturing literature. ...
6
votes
3answers
256 views

Temperature equalisation throughout the house

We have been living in our home for a year now, so have seen both summer and winter, and we are now looking to solve the heating and cooling problems we have. Heating The walls and roof of the house ...