My house has a solar and electric heating mechanism which provides hot water year-round.
However, when opening the hot water in the kitchen and toilet faucets, I get cold water which gradually get warmer and warmer, till they are actually hot. The process can take between 5 seconds to two minutes, depending on the house temperature. This is annoying and wastes precious water.
I once heard that there is a way to get instant hot water without a heater, by circulating water between the cold water line and the hot water line, but I could not find any details online.
Is there a way to get the hot water flowing instantly from the home faucets, without a faucet heater?