Central heating radiators

[supapapa]

When my central heating was fitted 2 years ago I was told what the snowflake symbol on ther adiator valve was . Can anyone remind me please.

[supapapa]

No, it`s more than that.

[deggers316]

frost protection setting?

[annie0000]

Exactly - it is the frost guard setting - the heating will only come on if it is very cold, but it is not completely off.

[firemanxxxx]

Yep, this is simply the lowest setting. It also means that on this valve there is NOT a positive OFF setting. If you need to isolate the rad for any reason, you must remove the TRV head, and fit the manual cap, supplied with TRV initially. Otherwise, the valve will open if the room gets very cold.

[annie0000]

Not necessarily fireman. I have both a frost setting and an off setting on mine. I have an off setting, then a frost setting, then I, II and III and finally a full setting. Not that anything other than the full has been used over the last month :o)

[supapapa]

I asked this question a year ago but forgot to ask about the thermostat.