Honeywell Programmable Thermostat Heater "10 year old" Questions

...10 year old Burnham Model 3WNH, and was told that I could get hot water for showering from it. Is this possible? I do see a 2 1/2" knock out on the back. House hold hot water is a common addition to ...

...old. This has happened 4 times in the last 2 weeks. Each time it is out for 4-10 hours during the day, and then starts running again during the night. It's good for a few days and then the same ...

...10 year old Honeywell thermostat. My old thermostat is a 4 wire system but also has a jumper from Y to 1. New system does not tell me what to do with the jumper (red) wire that goes from Y to 1 (I ...

...10/12 years old?). The green power light went out along with all the digital readouts. I replaced the batteries and all the digital readouts came back but no power light. I checked the main breaker ...

...old. The outside unit says "Aire Flo" and the inside unit says "Intertherm". Never had to have it worked on. A/C works perfectly in the summer. When winter hits, we turn the temp ...

...year old mid-efficient furnace serviced a few months ago. I have a 4 room small bungalow. The Honeywell thermostat is set to say 72 and it says it reached 72. However, an independant thermometer ...

...10 year old honeywell furnace controlled by a SV9541 smart valve. We finally had to switch to heat but no heat. Tried restarting - system does nothing. Checked to make sure the gas line is open - it ...

honeywell t8000c 1002 The day/time does not stay correct. Looses time after few hours. About 10 years old. What do I need to do? Replace it.