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Last seen: Mar 1, 2026
This is certainly what my system does. At the end of the DHW cycle, the diverter valve switches back to the radiator circuit, whilst there are quite a...
There has been quite a bit of discussion (mostly on OEM forums I think) that the flow/return temp sensors used by Vaillant on the Arotherm units are n...
That is, I beleive, the biggest pile of Bullsxxt ever (or at least, not the whole story). I have an Arotherm+ and have no legionella cycle configur...
I should add perhaps that will some jiggery-pokery with Python on a Rasberry Pi, and Open Energy Monitor, my EvoHome room temperatures, are all being...
@giganto I feel compelled to add my thoughts on this, if I may chip in? I too recently had an ASHP (Vaillant) installed, replacing a gas boiler. We ...
I am in the fortunate position of having independent monitoring (using OEM) of the heat pump and all temperatures. One thing I noticed quite early o...
You need to remember that the WC setting controls the target flow temp, and not the actual flow temp. The two will only be the same after a period of ...
If its only consuming 22W of electricity, then the compressor is not running at all, just the water pump. This is not 'idling', its basically off. &...
That would be 3.5kW of electrical power in. The power output into the house will at least double that - often more. A 7kW Arotherm+ will never consume...
I should add that our survey came up with a heat loss of 6.6kW - which is pessimistic. On our coldest day so far (6th Jan) it was looking like this:...
'Zero Disrupt' is a bit over-optimistic I suppose, but we did keep the old cylinder and rads, so any Disruption was limited to the airing cupboard, at...
@editor Oh yes so it does! How bizare.
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