Help wiring new thermostat (UK)

[littlespark]

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If battery’s are that easy to come by, why is there never a 9v square one available? Some people would rather do without a beeping smoke alarm than go get one.

 

[Boiler Repairs]

One problem with the Drayton Digistat battery units when the batteries die the stat runs the heating continuously so it's worth replacing the batteries every 12 months whether it needs it or not.
If I'm installing battery stats I normally use the Horstmann units as they fail to off when the batteries die

Not over keen on battery stats for manny reasons, attending a callout for failed batteries in winter when we’re busy is one of them.

 

[7029 dave]

Not over keen on battery stats for manny reasons, attending a callout for failed batteries in winter when we’re busy is one of them.

Easy work, would do that all day long.

 

[littlespark]

What’s the mark up on a couple of double A’s? Lol