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Nov 6, 2020 at 3:16 comment added Bhamrichard Now.. there's a second one in the house that was BARELY ever used, and though it tries, it won't come on.. Gas valve seems stuck,and I'm not banging on any gas valve :)
Nov 6, 2020 at 3:12 comment added Bhamrichard It's been quite awhile but I thought I would update this thread: I did find a Honeywell thermostat that works with this heater "Honeywell Home Th1100dh1004 Pro 1000 Horizontal". I also got in touch with a local heat/air service company, and after a few "You have a WHAT heater?!?", I told them, think floor furnace, but upright, and mounted on the wall. Guy says, Ok I can work with that! So he came out and cleaned it thoroughly, replaced the thermopile, even though the old one tested ok. After a bit of tinkering, it's been working fine for the last two years.
Jan 21, 2016 at 3:50 comment added Bhamrichard I'm going to end up having to find a new thermostat for this thing one way or another, the old one I had has just plain worn out. The one I bought at the local hardware store seems to be a 24v, and will not work with this heater. In either case, the heat doesn't come on absent a thermostat so I'll be checking voltage at the gas valve to see if the thermopile is functioning. All of the wiring is original, and still very tight. Might be a simple replacement part issue.
Jan 20, 2016 at 3:12 comment added Harper - Reinstate Monica IF they're made for that. Increasingly, a lot aren't. Gravity furnaces of this type are a regional thing, taboo in the east and midwest for some reason. A niche product with a niche thermostat just for them, so no reason for regular thermostat makers to support them.
Jan 20, 2016 at 2:56 history edited Tester101 CC BY-SA 3.0
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Jan 20, 2016 at 2:55 comment added Tester101 @WolfHarper I'm confused by your comment. If the unit doesn't use a 24 volt transformer, then it likely uses a thermopile. In either case it can be controlled by a thermostat, and connecting the signal wires should tell the furnace to ignite.
Jan 20, 2016 at 2:20 comment added Harper - Reinstate Monica It doesn't. It works with the power out, so obviously, it doesn't use a 24VAC transformer.
Jan 19, 2016 at 21:47 comment added Ed Beal I meant it as a comment for Bhamrichard
Jan 19, 2016 at 21:00 history edited Tester101 CC BY-SA 3.0
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Jan 19, 2016 at 20:59 comment added Tester101 @EdBeal How should I know?
Jan 19, 2016 at 20:23 comment added Ed Beal Is the pilot lit?
Jan 19, 2016 at 19:24 history answered Tester101 CC BY-SA 3.0