horstmann hrfs1 programmable room thermostat instructions

One users says I found British Gas just re-badged them from Drayton Digistat which is common, BG are not a manufacturer.

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Wireless appears to be easier (although more prone to problems) and thats the way I think Im going.

Boiler currently has a Honeywell programmertimer attached to it (from old boiler, about 15 years old) which does onoff upto 3 times a day with each day being set separately.

I assume I need to replace this to something which will communicate with the wireless thermostat, and therefore a programmable thermostat makes sense.

WB do a controller which will fit directly into the boiler here or other similar ones will less control.

This also controls the hot water, again onoff upto 3 times a day - at present we just have it always on.

I like the idea of it fitting directly into the boiler, but dont like that the thermostat is only wall mountable, not freestanding.

Any recommendations for which way to go and comments on the WB model linked to TIA.

I prefer the CM907 which is wired and will connect where your old room stat used to be.

I didnt think the WB one was freestanding, it appears to be just wall mounted - although of course I could always not attach it to a wall, but I didnt see that it had a stand as others appear to.

Presumably the receiver would just wire into the boiler similar to my existing timer control.

However there is an efficiency gain from letting the boiler run long enough to get the cylinder fully hot in the morning, then turning off on a timer until bathtime.

If the boiler runs for a few minutes to top it up every time you run a sink, this is inefficient and wasteful of gas.

I thought the whole point of a combi was always available hot water, so having it on a timer seems pointless - although I suppose if you only want hot water between say 7am and 8am and 6pm and 10pm then having it on a timer might make sense.

Its just that the WB control I linked to has a hot water timer on the receiver part, and seems to specifically be for the combi model.

I didnt think I needed it either, so wont feel I need that WB controller to get that function.

I did like the fact that the WB controllerreceiver fits into the boiler so it isnt another box on the wall, but as its in the utility room I guess that doesnt really matter.

Now I need to find an electrician to fit whatever I get, or would a plumber do that as its connected to the boiler (Ive just had a plumber in doing other work who told me off about the lack of a room stat).

An electrician would have to get hold of the circuit diagram and instructions first.

I quite like separate controls, it is easy to swap them subsequently if broken or outdated, without needing a heating engineer trained on that make and model.

I seem to fiddle around with the bloody thing more now than I ever did with our old one.

God knows how it works, the buttons are really fiddly and the instructions are ridiculous.

Horstmann Hrfs1 Programmable Room Thermostat Instructions