In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
New Thermostat 3 Wire Hot Water Boiler System
I have a 3 stage hot water boiler system with three different thermostats in my house. I went to change out the first thermostat downstairs with a new digital that said it was compatible with a hot water system. The only thing is the wiring diagrams are different, the three wires I have on my old edwards engineering thermostat are W6 , R5 , and 4B .. Could anyone shed some light on which socket these wires go in on a new digital, or if this will even work at all. I really need to change it out because its hard to set accurately because the old lens is faded pretty bad.
Thank you for your time,