Conservatory CH Scheme

[tonkski]

Hi, I'm replacing my existing drafty 30 year old conservatory with something which might be worth heating. The current central heating uses a Honeywell CM67 programmable thermostat. I plan to extend this central heating into the conservatory with a couple of radiators and put a motorised valve on this new leg of piping, connected to a simple thermostat (set at comfortable rather than warm) that will shut the valve when the conservatory is up to temperature (e.g. if it's sunny) even if the rest of the house is still demanding heat.

I realise that the conservatory might get cold when the rest of the house is not demanding heat but I can live with that I think, rather than have a properly zoned system which would require messing with pipes already laid in concrete floors.

What does anyone think of this plan - will it work? Any recommendations for the type of valve and stat I'd want on 15mm piping?

Thanks.

[Christian McArdle]

At least make it a programmable stat, so you can program the conservatory to go cold when not in use.

Any bog standard 2 port 22mm zone valve will do, with some reducers to 15mm.

Christian.

[David Hansen]

On 7 Jul 2006 08:01:12 -0700 someone who may be "tonkski" wrote this:-

For an intermittently used conservatory a good strategy is to be able to warm it up rapidly a little before occupation. One option is

this should be connected to the boiler independently of other heating circuits.