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Douglas Alpenstock wrote:Another option: drain the engine oil and bring it inside to warm to room temperature.
That's what they did in WWII when they were ferrying aircraft over the pole to the USSR. Otherwise the planes would have been impossible to start.
Douglas Alpenstock wrote:Here's an interesting study of 100 first-generation Nissan Leaf battery packs (the ones with the bad reputation) with an eye to reusing them for static electricity storage. This suggests PV solar to me, though it could be used for distributed grid support as well.
https://www.sciencedirect.com/science/article/pii/S2590116824000031
Leigh Tate wrote:In permaculture design, we speak of patterns: waves, spirals, lobes, branches, nets, scatters, cloud forms, tessellations, Fibonacci sequences, etc. But does everything in nature fit a pattern? Is anything what we'd call random? I've tended to think not as I study permaculture, but I find myself asking the question. I'm interested in other Permies' opinions about this.
Robert Ray wrote:Sent out a couple feelers and by noon had an immersion heater gifted to me. Will fit in a 30-gallon galvanized garbage can. Need to fab a drip can and will add a square of carbon felt in the drip chamber I don't have to drop paper in to start pan.
Robert Ray wrote:Sent out a couple feelers and by noon had an immersion heater gifted to me. Will fit in a 30-gallon galvanized garbage can. Need to fab a drip can and will add a square of carbon felt in the drip chamber I don't have to drop paper in to start pan.
Robert Ray wrote:I'll try and pull up a picture today, I have seen a WWII immersion water heater that would be placed in a 55 gallon barrel. The base and burn chamber a donut shape that rested on the bottom of the drum and the chimney and feed stack up to the top of the barrel. At the top a vessel of a couple of gallon vessel held diesel or waste oil that drips oil down the chimney to the burn chamber. No reason the heating medium couldn't be sand.