Last seen: Jul 4, 2025
@derek-m its basically a real world heat loss calculation / EPC - I could work our heat loss per average ambient by keeping a log
@derek-m trying to understand what 11kw means. If the house is 70m2 it seems a lot. I used 17kw yesterday to achieve the same results, but my house is...
@kev-m whats the size of your house?
@kev-m yes that's the whole house. I do have a little CT clamp meter on the HP, so I can see what its drawing. But its not recorded, I just look in as...
@kev-m It'll be a mix of hot water (for the showers), my wife's hair dryer, washing machine going on etc. This measures power in 5 min intervals, so i...
@derek-m there is a bit of cycling on the system due to the super mild weather (ambient was 13 overnight). However its very wet today, so interesting ...
Ran through the night with a COP of 4.2 - Lost some heat downstairs though, the temperature dropped to 20. So I've adjusted my curve 1 degree upwards;...
@jeff I think we'll end up with a system based on weather curves from heat loss calcs. I dont see why its not possible given we know the size of heat ...
room temperature hit 21.5 again today, so trimmed the weather comp at the bottom end a little. Its not exactly sunny, so solar gain should be negligib...
Checked the filter today and it was pretty much totally clean - so I think the gunk is now cleaned out. The system is basically silent now as well, wh...
@rv3 is your weather compensation turned on? That would be step 1
@derek-m If you want to go the DIY route, I would suggest/p> I am personally considering this, but now I have found my app does power and heat deliv...
Latest Posts
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RE: Midea ASHP – how to set weather compensation
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RE: Help me keep the faith with my air source heat pump installation
Er true, it should have read l/hr!
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RE: Big Changes Coming to Our Heat Pump System
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@jamespa thanks, I appreciate the offer. For n...
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RE: Who’s Caved and Switched the Heating On Already?
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@damon thanks. I will do as you suggest. Hopefully I wi...
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RE: Is a Valliant Inline 6kW heater a BUS buster?
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RE: Buffers, hot water and cooling
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
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RE: Replacing Worcester oil boiler with an ASHP
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
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RE: Vaillant aroTherm Plus 10kW thoughts?
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 5 days ago
