Every so often homeowner stuff catches up with us, and with an off-grid house here's a lot more stuff to pop out and bite you in the butt. I have moisture in the crawlspace AND a leaking roof, the homeowner equivalent of a headache and an upset stomach.
The roof is simple enough…climb a ladder and start stapling $20 bills to the area around the leak. The crawlspace is trickier, because it effects the overall energy balance of the house. Between last winter and this winter, we've seen a significant loss of efficiency on the under-floor heating system. Loss of efficiency means that the system, specifically the pumps that push the heated water through the system, are running all the time. In the daytime, no problemo — the solar system is just super.
At night, though, the electrical system draws from the battery bank, and unlike last winter they're getting drained every night. The propane generator then cuts in to charge the battery. This winter, the generator is running for 2 hours almost every day, easily twice as much as last winter with similar weather. That has drastically increased our propane usage.
Sigh…we have lots of experts sorting through solutions. Of course no one agrees on anything. Sigh….