I have recently installed a Gas On Demand water heater for my house. However, there is a significant time delay at some of the faucets before Hot Water arrives.
Can I install a Small Electric on Demand water heater for these faucets and connect the Hot water from my Gas on Demand heater as the inlet?
On demand has no provisions for water to return to the source thus your losing a lot of water was the water that is heated sits in the pipes cooling off and when a faucet is opened the water you paid to heat is wasted as you wait for hot water