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We have a tankless water heater, generally used with the popup camper. We use a 20lb propane tank with it. 300 gallon hot tub, 2400lb water. To bring water from 50F to 100F will take 120k BTU. The propane tank holds about 350k BTU, and the heater operates at maybe 80% efficiency. 150k...

With a little too much time on my hands, I was thinking about automating solar heat collection for the pool. I've browsed a bit, including this thread: diy-automated-controls-advice-solicited-t5708-80.html In putting together a parts list, I know I'm going to need to add a water temperature...

I'm just trying to figure out what the problem would be with adapting a playground slide as a pool slide. Build a solid framework, pressure treated lumber, take it apart each year for storage. A couple water spigots. Why, might you ask? A pool slide isn't in the budget, and there's a big...

I've never really thought about this before, but is it preferred to draw water to the solar heater through the main drain or the skimmer? It seems that the warmer water would be near the surface, so heat transfer would be better to the cooler water from the pool bottom. I don't know if this...