According to energy research done by energy gov if you are using a 40 gallon tank of hot water or less your energy demand is typically less than 50 percent with a tankless water heater compared to a water heater tank.
Tankless water heater vs hot water heater.
While tankless water heaters run more efficiently than storage tank water heaters replacing a tank water heater with a tankless can be expensive and the payback time can be longer than the warranty.
If you use lots of hot water daily around 86 gallons you might enjoy energy efficiency of an additional 8 to 14 percent.
One of the first things to consider is whether you should get a tank or tankless water heater.
Tankless water heaters are more compact and can heat up water as you use it.
Tankless units on the other hand can be a better fit for larger families where showers laundry and food preparation often happen simultaneously.
No waiting for hot water tankless hot water heaters instantly heat the water you need.
Energy efficient according to consumerreports tankless water heaters on average are 22 percent more energy efficient than traditional water heaters.
Water heaters with tanks.
Propane tankless water heaters can typically achieve a hot water flow rate that s three times the flow rate from electric storage or heat pump water heaters.
Tankless water heaters are more energy efficient for your homes because it is not constantly running to maintain hot water.