A propane tankless water heater does not store any water at all. When a person turns on a hot water faucet in their home, cold water flows though pipes into the tankless heater. A heat exchanger or propane-fired burner then brings the water to the desired temperature and it begins to flow from the tap. Hot water is not instantly available with a propane tankless water heater, but must flow from the tap for five to 20 seconds. This is a small inconvenience for energy savings of thirty percent or greater.
Ever been hit by a sudden blast of cold water in the middle of your hot shower, or even just lost hot-water pressure altogether, because someone has decided to do the dishes at the same time you’re cleaning up? If so, your house might be a candidate for a tankless, or demand, water heater. supplements a regular water heater with a tankless unit in every new house he builds to offset both the cold-water surprise and the drooping-pressure effect. Best of all, tankless water heaters are energy efficient because they don’t heat water when it’s not being used.