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Last seen: Oct 25, 2026
I am in a similar situation as you. Have an oversized heat pump 7KW in a 2KW at -2C property with UFH. I have selected a Vaillant 3.5KW as my repla...
I also have a Hitachi split system similar to yours, details in the tag line. I also had a lot of problems with cycling, the principal reason being t...
@marcexec I did look into this black version for my new heat pump. There is a german spec, reading between the lines I felt it's much the same as the...
I bought a new build property some 2 years ago. I was able to get most of the documents you cited above. However, it was a battle, and I had to get ...
I didn't appreciate that there was so much to a piece of plastic pipe. Done some additional research to find out more, concluding that: PEX-AL-PEX ...
@bontwoody @upnorthandpersonal Thank you for your replies.
I have added to this post the inside of the CU that Batpred has referenced above (it might be of help): From my side I am still working with my ...
Sorry if I have confused things. Here's a summary which I hope will help: Vaillant require this breaker: The installer is saying that the new b...
Batpred I have limited knowledge of electrics, but I believe you are saying its not a good idea to fit RCBO's of a different manufacturer in the same ...
It would appear that the installer has sent me an out of date spec document on the Vaillant heat pump. It now appears that I require a type B. T...
This looks OK, am I right?
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