Holiday mode vs thermostat control
Hi everyone, I’m sure this has been asked before but I couldn’t find quite the same q when I looked.
If I am going away in winter, so with a possibility of freezing temps, is holiday mode a better option than just turning the thermostat down to say 15 degrees and turning off the HW?
I know how to it by date, but I don’t know what my holiday mode settings actually are - I looked on YouTube and didn’t find this covered. Is it standard or does it different by installer?
Thanks!
I believe 'holiday mode' achieves the same thing i.e. during the times you mark as holiday, a fixed temp target is set. This tends to be controlled by a room thermostat. There will be "anti-freezing" settings on your HP to stop it from freezing, but you might want higher than that. It probably depends on how long you are away, and whether you want to try "pre-heating" your house before you return, as a HP will take a long time to get your house from, say, 10C, back up to 20C on your return.
Personally, I'd just flip things down to 15C and ignore any holiday mode. Given HW heating is a fraction of heating costs, and it'll take very little energy to maintain a cylinder that's not being used, I'd leave HW heating on. Just remember that a static tank is more like to encourage Legionella than one being used. I've read that running HW for 5 minutes on return is a good idea. (the Heat Geek article on Legionella is very good).
Grant Aerona 3 10kW
@mikefl thank you! Yes I think I’ll do that, and then maybe run a quick legionella cycle on return. And hope it’s not too cold when we get back so we can heat back up again in not too long!
- 25 Forums
- 1,513 Topics
- 31.8 K Posts
- 25 Online
- 1,283 Members
Join Us!
Latest Posts
-
RE: Additional Battery v Wind Turbine v Ripple
I should add, being an investment, the value of your in...
By Old_Scientist , 5 hours ago
-
RE: Ecodan - flow rates, sensors, settings
Achieving an accurate flow measurement is probably the ...
By Derek M , 9 hours ago
-
RE: Ecodan ASHP - How to optimise my set up?
Again, thank you for another thorough post, @derek-m - ...
By rhh2348 , 10 hours ago
-
RE: Delivering a smart and secure electricity system: government consultation
@Transparent.Now that I am represented by a new MP I th...
By IanMK13 , 13 hours ago
-
RE: Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
Similar thread here
By Johnmo , 13 hours ago
-
RE: VDI 2035 heating water specification
Been looking and it seems a good little project. Ever...
By Johnmo , 2 days ago
-
RE: Do I accept an ASHP and Solar Panel retrofit under the HUG 2 scheme?
Will do. I'm currently waiting for another survey / vis...
By dssr , 2 days ago
-
The company that did the borehole were expecting us to ...
By Johnmo , 2 days ago
-
-
RE: The Misquote That Ruined the Heating Industry
@abernyte manufacturer training is pretty average. They...
By Mars , 2 days ago
-
-
RE: ECO4 Scheme and EPC ratings
@mellow Thanks. Given there is a scheme requirement to ...
By Old_Scientist , 3 days ago
-
RE: Do I just go with the lowest quote for my heat pump?
@jancold To me its a no-brainer then, a max 40C flow te...
By bontwoody , 3 days ago
-
-
RE: Heat Pump Books Beginners – Bodge Buster & From Zero To Heat Pump Hero
@editor Presumably he had some good weather Compensatio...
By Toodles , 4 days ago
-
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??
Storage capacity really is dependent on storage tempera...
By Johnmo , 4 days ago
-
RE: HP Cycling, Expected or Undesirable
Just a little update. I ordered a longer shielded twin ...
By bontwoody , 4 days ago
-
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump
Thanks @allyfish for the pics and info. Spoke to the in...
By Mellow , 4 days ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
It's been a busy day for calls and emails from Aira. I ...
By MikeH , 4 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Hmm. A bit of a nuanced answer, methinks. As I've alr...
By Majordennisbloodnok , 5 days ago
Latest Topics
-
Ecodan - flow rates, sensors, settings
By rhh2348 11 hours ago
-
Replacing mains water with well water
By Johnmo 2 days ago
-
Additional Battery v Wind Turbine v Ripple
By bontwoody 2 days ago
-
By jamespipe 3 days ago
-
VDI 2035 heating water specification
By Johnmo 3 days ago
-
Do I just go with the lowest quote for my heat pump?
By Jancold 5 days ago
-
The Misquote That Ruined the Heating Industry
By Alec Morrow 6 days ago
-
Battery Storage Wiring Gauge Question
By Puff 6 days ago
Members Online
No online members at the moment