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Last seen: May 20, 2026
Hmm, Interesting. Their export tariff 'pays out' only at the end of the end of the year and I have always wondered if I will have trouble claiming it...
Cycling will always occur if the demand from the house (essentially the heat loss at the current OAT) is less than the minimum steady state output of ...
Only to the same extent that outside temperature, or room temperature 'controls' dT. Its certainly true to say that dT may vary as a result of changi...
Heat pumps cant do the first directly because its not something they directly control. DT is determined by the loss from the emitters (which is in tu...
I thought I has answered this; I think the answer is NO because of the bits in italics.
This problem occurs, to a greater or lesser extent, with any heating system really whether ASHP. Oil or Gas and isnt special to Grant in the ASHP worl...
Ah, this is a bit of a mess. The interface from the smart meter to HA depends on the HID (home interface device - the little display you get). Some ...
The Samsung app is pretty user friendly, but has some limitations in its capabilities unfortunately. At installer show the Samsung rep proudly showed...
In principle yes. Some heat pumps (I think including Daikin) appear to modulate the water pump to achieve a quasi fixed DT. So if you set it at 6 fo...
That all sounds promising, the right people, who hopefully understand what they are looking at, are finally on the case. Just one thought, if you are...
According to the Heat Geek cheat pipe sizing sheet (which seems to have disappeared form the heat geek site but is reproduced here 22mm copper is good...
No issues at all in extending it so far as I can see, certainly until the point where you are asking it to exceed it's max flow temperature Obvio...
Latest Posts
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RE: Heat Pump Operation in Summer - Valliant 7kW
Personal choice but without a doubt my heating pump cop...
By JamesPa , 31 minutes ago
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RE: MCS 2.0 - Changes in January 2025
I had a few quotes and none of them says much about the...
By Batpred , 2 hours ago
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We’ve had a mention in the Financial Times. 👀 ...
By Mars , 2 hours ago
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RE: Estimating true heat loss from twelve months of consumption data
Got thinking about an easy way to measure heat output o...
By Travellingwave , 4 hours ago
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RE: ASHP Capacity loss with aging
I see where you were also going with this, its is likel...
By ASHP-BOBBA , 7 hours ago
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RE: Renewables & Heat Pumps in the News
Interesting prompt about whether some of the solutions ...
By Jeff , 7 hours ago
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RE: UK warm homes plan - how can it be delivered?
Agree it could sometimes be self inflicted, but I also ...
By Batpred , 14 hours ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
If they don't do heat loss, you need another installer....
By bobflux , 14 hours ago
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RE: Lower electric tariffs for heat pump users
I did some modelling using our real consumption figures...
By ChandyKris , 16 hours ago
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RE: Loud noises in the night - and one for the toolbox?
This may work hopefully now
By Jancold , 16 hours ago
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RE: Sizing an ASHP; Heat loss and kW
There will be no changes internally; ground floor is al...
By GutoFfowc , 20 hours ago
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OK, here's a rather off-the-wall discovery I've made th...
By Majordennisbloodnok , 20 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
I'd like to re-visit this information from Indevolt. ...
By Transparent , 22 hours ago
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RE: Advice on Vaillant Sensocomfort
I just had an answer from Vaillant technical, they only...
By Batpred , 22 hours ago
