In the absence of this feature, you will have to wait for 10-20 seconds before getting hot water. Some gas tankless heaters may come with a built-in recirculation pump, while others do not ...

Gas tankless water heaters offer the most power but tend to be the most expensive to purchase and install. However, electric water heaters will typically cost more in energy bills, so there is ...

Perfect for heating enclosed spaces up to 225 square feet PROPANE GAS: For use with propane gas; Runs off a 1-pound cylinder of propane and can connect directly to a 20 pound cylinder with ...

The number of years of energy savings (from a new water heater) needed to cover the purchase and installation costs of replacing an existing water heater. The number of years of energy savings ...