Re: Gas boiler control

["Tom Dubourg" <romas2000@xxxxxxxxxxx>]

Hi Pete

Do you have a room thermostat in your system that turns the boiler
off when the room reaches desired temperature?

Regards

Tom


--- In ukha_d@xxxxxxx, "Pete Shew" <ukha_d@s...> wrote:
> I have just received a nice large gas bill. What I am wondering is
are there any smart central heating controllers that, for example,
take account of the temperature drop in the circuit, to reduce
boiler on time.
>
> I have a fairly large system with two boilers in tandem and three
zones plus hot water. All radiators have thermostatic valves, except
bathroom towel heater type which I shall be fitting soon. The
current control is by means of a triple and a single time switch
controlling zone valves. These are commoned via a contactor to drive
both boilers.
>
> However, I don't use both boilers at the same time as one is
electrically and liquidly isolated. From time to time I switch the
active boiler, and haven't yet felt the need to run both to provide
the required heating.
>
> If there are no products commecially available, has anyone
experimented with microcontroller heating control?
>
> Pete