NEST thermostat

Ok. I’ve never heard of a 10-volt thermostat. Are you sure? In some advanced systems, there are zero-to-ten-volt DC modulating thermostats, which you don’t have. You may also have a millivolt (mV) thermostat, but the boiler would also have to run on mV.  Check it out.

Master Plvmber

in Brownstoner Renovation 12 years and 6 months ago

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anetwest | 12 years and 6 months ago

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I have a ten volt exsisting boiler, and I would like to upgrade to a NEST thermostat. The NEST requires 24 volt power, can anyone refer us to someone that can add a transformer to our system? We would really like to use the NEST thermostat.

Master Plvmber | 12 years and 6 months ago

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I’ve never heard of a 10-volt boiler. Are you sure?

anetwest | 12 years and 6 months ago

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Oh, no it is the current thermostat that is 10 volt, and the NEST needs 24 volts. How do we add a transformer?