Nest 3 fitting before or after new boiler

Nest 3 fitting before or after new boiler

Nest 3 fitting before or after new boiler

Hi,

I'm about to change a my boiler (standard) to a combi, removing hot water cylinder/cold water tank.
I currently have a Drayton Tempus 6 controller and a Honeywell T6060 thermostat (240v) on a Y heating system.

Should I wait until it's done and get it fitted at the same time? I think it might be easier.

Thinking of getting a Viessmann 100W which supports Opentherm I believe so should work well with the Nest.

Thanks in advance

by Rob170UK

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