Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
When do you turn your heat pump off?
At what external temperature do you turn your heat pump off and remain comfortable inside?
I'm running our ASHP on full weather compensation, but there must be a point that it becomes unnecessary to heat the house and I'd like to set the controller to deactivate the system when this external temperature is reached to minimise electricity use.
Alternatively, I could revert to using zoned thermostats to heat rooms on demand in this period. I have a feeling full weather compensation will be less efficient because it won't be necessary to run the system 24/7 as we move into March/April...
Thoughts?
Ours does hot water, so it's never turned completely off.
When the heating isn't needed probably depends on how good your insulation is. Once it gets to 12° outdoors, we probably don't need it.
Once the warmer months arrive I don't switch off but just set the thermostat back to 14C and the system "sleeps" through the summer doing the occasional hot water top up when the solar thermal hasn't quite got the tank up to temperature yet. The tricky part is " when are the warmer months"? Last year I set it for 1st May and had to quickly revise that as the garden was white with frost and in fact it turned out downright cold with overnight frosts until well into June. It can be a wee bit chilly on this exposed NE Scotland hill. I am aiming for the 1st May again this year more in hope than expectation! I might have to look out the thermals.
- 26 Forums
- 2,644 Topics
- 61.7 K Posts
- 418 Online
- 7,045 Members
Join Us!
Latest Posts
-
RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 11 hours ago
-
RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@jamespa that’s actually a really interesting observati...
By Mars , 11 hours ago
-
RE: How many people are happy with their ASHP and do you believe them?
Good luck, I spent a couple of hours and, whilst I foun...
By JamesPa , 12 hours ago
-
RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 20 hours ago
-
@editor "The interesting bit is that many modern invert...
By Singlespeed , 21 hours ago
-
RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 22 hours ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 22 hours ago
-
Mentally you have to separate the ac side and the DC si...
By JamesPa , 2 days ago
-
RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
-
Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
-
I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 4 days ago
-
Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 4 days ago




