Furnace and single battery
Okay, so i am back at this camping thing. First my question, if we don't use the lights in the pop up dry camping, so assuming just the LP detecter is running, how long could we run the furnace for un...
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Replacing the mechanical thermostat with a digital programmable one is worth it! I replaced mine and it has kept the temperatures very stable. I also like that it turns way down at night to reduce battery & propane use (we have good sleeping bags), then comes back up in the morning BEFORE I need to get up. Here's a link to how I did my replacement: Thermostat Replacement.
One thing I haven't seen mentioned yet is that the furnace blower needs to run at a fairly high speed (i.e. needs higher voltage) before the safety interlocks allow the gas to turn on and ignite. The furnace not igniting is usually the first sign of a weak battery. It will blow cold air for a little while then shut off. My experience is that it does this a littel before the battery hits 50% SOC. So when the furnace doesn't light, it's time to recharge; unless it's 3AM AND we're in a campground. If boondocking, the generator fires up whenever I need it to!
One thing I haven't seen mentioned yet is that the furnace blower needs to run at a fairly high speed (i.e. needs higher voltage) before the safety interlocks allow the gas to turn on and ignite. The furnace not igniting is usually the first sign of a weak battery. It will blow cold air for a little while then shut off. My experience is that it does this a littel before the battery hits 50% SOC. So when the furnace doesn't light, it's time to recharge; unless it's 3AM AND we're in a campground. If boondocking, the generator fires up whenever I need it to!
