This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
PV wasn’t economically feasible at smaller scale until relatively recently, but that doesn’t mean that preheating water for heating or domestic hot water is a waste of time. It can save considerable costs and fossil fuel consumption.
PV wasn’t economically feasible at smaller scale until relatively recently, but that doesn’t mean that preheating water for heating or domestic hot water is a waste of time. It can save considerable costs and fossil fuel consumption.