Last seen: Aug 6, 2025
Thank you James for such a complete write up. We also have a 7kW Vaillant installed in our case by a “Heatgeek Elite”. Our house is also 200m^2 and fr...
Is this going to be useful guys? Just trying to move it back into contention. is it a useful but small step or irrelevant for example?
Don't forget there is no such thing as zero loss insulation and trunking! So inside the envelope is best everything else looses some heat to the exter...
Please provide photos or model if you can find it in a builders merchants. Even if yours isn’t airtight it might be an easy change. Someone might re...
@adamk we only switch ours on when the temp gets down to about 2C and it has 2 fan speed settings, purely manual obviously. Our house has doors on eve...
We have outside canopies which we roll down to reduce the (extreme) heating effect of large south facing windows and patio doors. In the kitchen this ...
@majordennisbloodnok we have an under plinth heater (a Myson) and it was set up for occasional heating with the gas boiler. The only change for use on...
Our DHW this year (Jan & Feb) has given a COP of 3.6. That is 5 days a week heating to 48C once a day at 1pm and once a week to 69C for a legionn...
@michellec I suspect @transparent means neat and tidy work, which you have reasonably expected. Plus with the detailed implementation to keep water ou...
@benseb that sounds a good point from which to start. Since our battery is just a third of your size I would be heating in just the low cosy period an...
On the Vaillant app our 7kW showed9.1kW at ~+2C. I suspect that is a bit on the high side of the measurement accuracy though. @adamk your surveyor m...
Ours is on the flow side at your position C after the DHW-CH change-over valve. It is plumbed in series.
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