MegaSack DRAW - This year's winner is user - rgwb
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Plan to get a nest to replace old wireless thermostat. Current we move this around day / night from upstairs and downstairs.
I would like a 2 zone system (believe that is the phrase) can this be achieved by just buying 2 nests or does the central heating need to be changed as well so upstairs can run independently of down?
I can't see how two Nest can create zoned heating if the boiler/plumbing is not set up for it.
I've got Nest and like it, but you might be better with one of the pricier options that include wireless thermostatic valves, then you can zone the house to your geeky hearts content from the comfort of your smartphone, and without touching the plumbing 🙂
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[url= https://nest.com/uk/support/article/Does-Nest-work-with-zoned-systems ]https://nest.com/uk/support/article/Does-Nest-work-with-zoned-systems[/url]
Yes you would need two nest thermostats and an extra motorized valve plumbed and wired in to the existing system.
I've got Evohome, where every radiator can independently demand heat. I've got it in the main rooms, ideal for equalising? the temp in your home or dividing floors or whatever. You can also pair radiators to create zones or whatever you're trying to achieve. You can also diy install (except maybe wiring the relay to the boiler).
Evohome looks great except for the price. We have something daft like 20 rads so it would cost a fortune.
Would you need it on every rad? If you just chose specific radiators where temperature control is important or you want to be able to switch on when you have guests in the spare room, when they call for heat and fire up the boiler, the random ones in hallways/bathrooms etc would be able to provide heat if their 'dumb' thermostatic valves are set above the current room temperature.
Evohome lets you group rads tow controller then the controller to evohome. Done a system with 30 rads and it was expensive but has worked the majority of the time.....