Last seen: Aug 30, 2025
You don't have an arotherm (Vaillant is another make of heat pump), you have a Samsung, or that's what you told us. Different beast, same principles....
They aren't working together and the evohome will be clobbering your efficiency. Nope, waste of money. Either remove the evohome heads altogether ...
They are, unless to fit them would make the system less efficient/effective. Unfortunately installers love to fit them even when the latter applies. ...
For what it is worth, the way the Vaillant heat pump control works in pure wc mode (where actual room temperature is not part of the control loop) is ...
@rob_cirrus_energy has given some excellent advice albeit for a different system. The same principles will apply to you but the specifics will be dif...
Ok see my answer above re the readings. A heat pump is in terms of its function just like a boiler. It heats water which circulates in your radiato...
I suspect this is target dhw temperature and current dhw temp,erasure.
I am sorry to hear about your problems. I know nothing about ECO4 but do know something about heat pumps which should be a factor of 2-3 cheaper t...
Please thank @judith who posted this initially!
I have now read this in full. Very interesting and logical. One of the better papers I have seen in relation to ASHPs!
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