How much can a tankless water heater heat?

On average, tankless water heaters can provide 2 to 5 gallons of hot water per minute. Gas-fired tankless water heaters, according to energy.gov, can produce higher flow rates than electric models.

What size of tankless hot water heater do I need?

To replace a 50-gallon water heater, you would, roughly speaking, need: 10 GPM gas tankless heater or at least a 27 kW electric tankless water heater if you live in the northern part of the USA. 7 GPM gas tankless heater or at least an 18 kW electric tankless water heater if you live in the southern part of the USA.

How fast do tankless water heaters heat?

Typically, tankless water heaters provide hot water at a rate of 2–5 gallons (7.6–15.2 liters) per minute. Gas-fired tankless water heaters produce higher flow rates than electric ones.

What is the downside of tankless water heaters?

The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters. Including installation, tankless water heaters cost 3 times more than tank-style water heaters on average.

Is a tankless water heater good for a large family?

From a comfort standpoint, a tankless model can ensure hot showers for the whole family, enough warm water for dishes and laundry and a restful soak in a warm bath after a long day at work.

Do tankless water heaters take a long time to heat water?

Tankless units take about 15 seconds to bring water up to temperature, but you still have to wait for that hot water to arrive at your shower head or faucet, just as you do with a tank-type heater.

What is more efficient tankless or tank water heater?

According to Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” Tankless water heaters (if gas-fired) will save homeowners over $100 annually the longer they remain in service.