Adam
wibbled on Monday 12 October 2009 19:42

Hi All,

I'm looking for a better way to control our boiler and I'd appreciate
advice from the group.

We have a Baxi 133 HE plus (combi), but we daftly thought the cheap
manual controller would suffice (a dial on the front of the boiler
with radially arranged switches). We'd like to dramatically increase
our control over the heating circuit. At the least, we'd like to be
able to program two on/off cycles per day, with each day configurable.
At best, I'd like thermostatic control too, although I'm not sure
where it would be best placed.

Can anyone advise me on controllers, thermostats and whether/how I can
fit them to the Baxi?

Thanks - Adam...

There's an infinite choice...

There's loads of electronic 7 day programmers in B&Q (eg Sunvic)

If you want thermostatic (eg a 4 level temperature curve, per day is quite
common) you could try Heatmiser (google). Some of those have remote probe
options (probably limited to a few metres) but that could allow you to
place the controller near the circuit and run the probe to the next room.

Any boiler can be controlled by any timer/stat as there should at least have
a pair of terminals marked as demand or thermostat or call for heat or
similar (it was common in the old days to put the stat in the hall or main
room even if the timer was in or next to the boiler).

As long as your controller can switch mains voltages then it will be fine.

Another option are the Honeywell radio ones (CM Zone), where you put the
boiler relay (with radio receiver) near the boiler and the timer/stat can
go in any room. With the right model series you can bind multiple (up to 4
IIRC) timer/stats to one relay. I'll look it up if you want more info.

Others also make radio systems - agin, if interested I'll give you some
links.

HTH

Tim

HTH

Tim

--
Tim Watts

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