Tankless Vs Tank Water Heater Efficiency

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.

Tankless vs tank water heater efficiency.

Water heaters with tanks. 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. And s torage tank water heaters while less expensive up front don t last as long as tankless options. One of the first things to consider is whether you should get a tank or tankless water heater.

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. Gas tankless water heaters produce a higher flow rate than that of electric water heaters. A flow rate is just the gallons used per minute. Tankless water heaters are more energy efficient than even high efficiency storage tank water heaters.

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. Tankless water heaters are more compact and can heat up water as you use it.