Wire a nest power connector with just heat

[tsouch]

Wire a nest power connector two wires heat only keeps showing no power 

[Patrick_Caezza]

@tsouch 

Which thermostat do you have?

Can you post a picture of the original thermostat's wiring?

What type of heater/furnace/boiler do you have?

Good chance you will need the Best Power connector and an external 24 VAC transformer.

Wiring is simple, depending on the devices you have.

 

[tsouch]

I have an efm coal oil combo it only has two terminals to thermostat where ca you purchase a transformer 

[Patrick_Caezza]

@tsouch 

I found the best place to purchase a transformer is Amazon