We have a Lennox heat pump with a standard (non-programmable) Honeywell thermostat. Last weekend we didn't have any heat, no fan, nothing. My cousin who does commercial heating/air conditioning install & repair replaced the old programmable thermostat with the a new, standard Honeywell...

Hi, I have 5 electronic zones, each with a separate thermostat, running off a single circulator motor. Two of my zones were heating up way beyond the temperature set on the thermostats. I shut off the thermostats but the zones kept getting heat until I finally turned off the boiler. I've...

I have a Coleman HC3B heat pump. The local service technician showed me the jumpers for the low-temperature cut-out (LTCO) and balance point (BP). It appears to be a set of pins with labels decreasing in value by 5 (45, 40, 35, etc.) which I assume are the temperature. I would like to...

I have just installed a new outdoor sauna. The new sauna heater trips the GFI breaker when the thermostat shuts the heater off after reaching the specified temperature. I have a 50 amp GFI breaker in the house 200amp load box. From there I ran #6 wire for 120 feet to an external weather proof...