Frost Settings - how low can you go?

[Alan Ambrose]

Hi,

 

I recently installed the Bright app and made a connection to my old BG smart meter. Incidentally, the electricity is currently supplied by Eon.Next who are not picking up the smart data, but Bright is. Duh.

 

Well success, and I spotted yesterday some usage in early morning and evening which surprised me - because I'm not there atm.

 

Seems I had some frost settings set too high at 16 degrees. So, I lowered them to 12 degrees.

 

Now I know you can set the frost settings too low (ask my neighbour who now has a blown UFH set-up).

 

But the question is - how low can you (do you?) reasonably but safely go?

 

Alan

 

 

 

[ProDave]

What frost settings are you talking about?

 

My ASHP seems to turn on it's circulation pump as a frost protection measure and seems to do so at about 10 degrees but it is an undocumented function and so not adjustable.  IMHO 10 degrees is way too high, especially as the water contains antifreeze.  I would love to be able to lower it to at least 5 degrees but it does not seem possible.

[Alan Ambrose]

>>> What frost settings are you talking about?

 

Well I have a Heatmiser set-up, but pretty much the same thing applies even if you have a gas-combi and a single thermostat.

 

I guess I mean in this case 'frost setting' as in 'even if you don't have the heating schedule 'on' - at what temperature do you want the heating to start working anyway to avoid the pipes freezing?' 

 

I realise other vendors have other terms. And I realise that heat pumps, MHVP etc have their own set-ups, which may or may not be configurable, to avoid stuff freezing inside their machinery.

 

Alan

Edited November 4, 2022 by Alan Ambrose