Heating Turned Off but Radiators Still Warm
Can anyone shed any light on why our Daikin Altherma 3 Monobloc (R32) should still be keeping the radiators warm and the hot water above target temperature, when everything is switched off?
While we have builders working on our house and some of the windows are replaced by boards, I want to maintain it at a safe level to avoid freezing, but no more.
The heating is set for constant a water temperature (not weather dependant) of 35C and the thermostat set to 5C. However, when there was nobody there yesterday, my temperature loggers show that the house was kept between 12.5C and 13.9C. The DWH is set to 30C, but has been maintained at 36C.
Our installers tell me that the system is still running to protect it from the current cold weather. However, even when the outside temperature was at least 5C, the compressor was drawing an average of 1.142 kwh.
This morning, the forecast said that the weather would not freeze, so I turned off both the heating and DWH. However, the compressor has been running most of the day and the radiators are still warm.
When we are living in the house, this behaviour would not matter, but I am keen to understand what is going on, in case it reveals a fundamental fault in the system. I would also like to stop paying to heat the garden!
Does this match the behaviour you would expect in colder weather? Would the cold weather system protection require the house to remain warm?
-
How can we prevent our LG heat pump from freezing up in cold weather?
5 days ago
-
Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency
2 weeks ago
-
Ideal Logic 10kW Heat Pump Pipes Noisy and Very Expensive to Run
4 weeks ago
-
Samsung 5kW R32 Monobloc Gen 6 ASHP
1 month ago
-
L9 error with Mitsubishi ecodan heat pump
3 months ago
- 21 Forums
- 1,962 Topics
- 42.6 K Posts
- 57 Online
- 2,276 Members
Join Us!
Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)
Latest Posts
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@jamespa Agreed. I think it’s a case of much over muchn...
By Mars , 9 minutes ago
-
@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 37 minutes ago
-
RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@bami I think if the heat loss documentation matches a ...
By bontwoody , 59 minutes ago
-
RE: What is the best strategy for operating a very oversized heat pump?
@jamespa I'm afraid that's over my head but if anyon...
By IRMartini , 1 hour ago
-
RE: Setback savings - fact or fiction?
And here in case any one wants it is the code I used in...
By cathodeRay , 2 hours ago
-
RE: Samsung Gen 7 R290 12kW is not behaving how I expected
Definitely its in the 20xx FSVs. Conversely it may be...
By JamesPa , 2 hours ago
-
RE: Towel rails. An unexpected final hurdle
We have both Normal Rad for heating the room and then a...
By IRMartini , 3 hours ago
-
RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 6 hours ago
-
RE: SolarPV tables / online calculator
I'd be interested what others find whilst using that we...
By Majordennisbloodnok , 8 hours ago
-
RE: F.788 Building circuit pump reports internal fault - Vaillant Arotherm
Guess I have to wait for engineer visit. I really hope ...
By jeegnesh , 20 hours ago
-
RE: Act now to defer the UK road tax increase on EVs
@majordennisbloodnok Damn right sir. my attempt at iron...
By Jancold , 22 hours ago
-
RE: ASHP and heating issues in new build house
That’s good gives you more capacity. It made me think, ...
By Terry1812 , 24 hours ago
-
RE: Seewet manhole cover within r290 exclusion zone
Thanks! I asked Vaillant, and they say I should be fi...
By dbrb2 , 1 day ago
-
Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
I'm running my Aerona 3 on WC and the 'warm end of that...
By damonc , 1 day ago
-
RE: Do I just go with the lowest quote for my heat pump?
So after signing in Sept in two weeks the install may s...
By Jancold , 1 day ago
-
RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
When you are renovating is always a good time, as it ma...
By JamesPa , 1 day ago
-
RE: Just one room not reaching desired temperature
Looks like this issue is now resolved. Aira installed a...
By ChandyKris , 1 day ago
-
There have been several people on the OpenEnergyMonitor...
By RobS , 2 days ago
-
RE: Say hello and introduce yourself
Good point @jamespa But that probably strengthens @ch...
By Transparent , 2 days ago
Latest Topics
-
Heat Pump Sizing & Installation Costs
By Mars 8 hours ago
-
Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 9 hours ago
-
SolarPV tables / online calculator
By MichelleC 16 hours ago
-
By Toodles 2 days ago