Tankless Vs Tank Water Heater Efficiency

A flow rate is just the gallons used per minute.

Tankless vs tank water heater efficiency.

Like the tank water heaters you can go with a gas or electric option for tankless water heaters. And s torage tank water heaters while less expensive up front don t last as long as tankless options. Although they require fewer btu h to operate storage tank water heaters generally have higher operating costs because they heat and reheat water to a preset temperature regardless of a home s hot water demand. The doe notes that storage tank water heaters typically last 10 to 15 years while most tankless units have a life expectancy of 20 years or more.

Although the highest efficiency storage tank units might be comparable to tankless units in the percentage of captured heat energy that doesn t tell the whole story. If you use lots of hot water daily around 86 gallons you might enjoy energy efficiency of an additional 8 to 14 percent. Homeowners with on demand tankless water heaters that use less than 41 gallons or less of hot water each day enjoy between 24 and 34 percent more energy efficiency than storage tank water heaters. Tankless water heaters are more compact and can heat up water as you use it.

Gas tankless water heaters produce a higher flow rate than that of electric water heaters. Tankless water heaters are more energy efficient than even high efficiency storage tank water heaters.