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But you can't power a computer on PV. I don't think anyone who knows something about energy efficient heating suggests PV to warm a house electrically, it's too
by roel_v 12y ago
But you can't power a computer on PV. I don't think anyone who knows something about energy efficient heating suggests PV to warm a house electrically, it's too inefficient.
- jtheory 12y agoNot my comment you're responding to, but it's not talking about PV for heating (that'd be kind of ridiculous, honestly). Systems for heating water/air using solar can be quite inexpensive as well; converting light to heat is rather easier than converting it to electricity. E.g., I've seen cheap pool-heating systems that just pump the water through wide flattened black pipes exposed to the sun and send it back into the pool. Voila, solar heating!
- roel_v 12y agoYeah my second sentence was a non sequitur, but my point was: you can only do a little with solar/water heating. Yes heating a pool is one of those things, but that's a very niche application. This thread is about heating a house, or at least about being comfortable in one, and solar/water is just not a viable technology for that in the vast majority of cases.
- jtheory 12y agoOh... you said "PV" in both sentences, which is specifically converting light to electricity; that's what threw me. For heating a house with solar (not PV) -- it would depend on insulation level, I'd imagine. I do know people who use it for "most of the time" water heating, with good results.