Google Nest Community

Wayupnorthguy · 09-14-2023

(UPDATED)Taking the advise from this thread I tested two additional configurations for a 2-wire thermostat with a Navien NCB-H combi-boiler.#1 Using a 5W 220ohm resister wired between the W1 and C wires at the thermostat. This configuration did allow...

Wayupnorthguy · 11-01-2023

Yes, That is correct.

Wayupnorthguy · 10-19-2023

Yes. At the thermostat connection. On mine it's bottom right hand side of the unit internal..

Wayupnorthguy · 10-16-2023

Just an update. I installed (one at a time) the Nest Power Connector and the 5w,220ohm power resistor. Both solutions work with a two wire installation. The advantage of the Nest power connector is the ease of installation. The advantage of using a r...

Wayupnorthguy · 09-18-2023

So Google Nest also makes a power connector that looks like it may be nothing more than a resistor in a fancy package. I tried to get information on that device to see if it would solve my issue but the support specialist couldn't answer any technica...

Wayupnorthguy · 09-15-2023

I will try this once I get a 5w resistor. If this works I would recommend that nest update their knowledge base. Neither tech support from Navien or Google offered this as a solution. On some threads...the "pros" were offering up only the relay solut...

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Solved: Nest Thermostat and Navien Combi-boilers

Re: Solved: Nest Thermostat and Navien Combi-boilers

Re: Solved: Nest Thermostat and Navien Combi-boilers

Re: Solved: Nest Thermostat and Navien Combi-boilers

Re: Solved: Nest Thermostat and Navien Combi-boilers

Re: Solved: Nest Thermostat and Navien Combi-boilers