Nest installation question

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xyz123

Original Poster:

1,002 posts

131 months

Tuesday 6th February 2018
quotequote all
Hi

In slightly unusual situation.

I have a conventional boiler with 7 day honeywell digital programmer. There is wired thermostat in hallway and hot water tank upstairs.

I have got somebody to come and install nest (am clueless with these things so don't want to take a chance) in two weeks.
However todsy looks like my honeywell programmer has developed a fault which is random but needs the controller replacing.

Question is when nest is installed, is the honeywell programmer kept or is it removed? If it is to be removed I don't want to spend £70 odd just for couple of weeks (we r not without water or heating as the problem is intermittent and seems to be resolvable by switching back light off..)

Thanks

xyz123

Original Poster:

1,002 posts

131 months

Tuesday 6th February 2018
quotequote all
Forgot to aff that installer is on holiday so can't get hold of him at the moment.