How long hot water tank to heat up

Here are some averages:. The average gas water heater is around 40 gallons and takes about 30 to 40 minutes to heat degree water up to degrees. A gallon unit will take about 40 to 50 minutes to heat up. A large gallon gas water heater takes about 60 to 70 minutes to heat up. Of course, this is just an estimate, and will vary by age and model. Electric water heaters take longer to heat up than gas units.

These units use immersed electrical heating elements inside the tank to heat the water. They take about twice as long to heat up. The time it takes is influenced by the heating element wattage and the temperature the water heater is set to.

However, here are some averages:. If you have a gallon, watt electric water heater and set it to degrees, it will take about an hour to an hour and 20 minutes to heat up.

A gallon electric unit will take about an hour and 45 to an hour and 50 minutes to heat up. Related Posts: Tankless vs. Find A bluefrog Plumber Near You. Learn More. Less Mess. The best way to fix this issue is by flushing the tank regularly. But if you have an electric unit, and the heating elements are damaged beyond repair, you must replace them. This is also why we recommend contacting a professional. If the recovery time is still too slow, it might be that you need to replace the heating elements.

How long it takes a water heater to heat up depends on a few factors. As a general rule, gas units are significantly quicker than electric ones.

But sometimes it happens that the recovery time suddenly increases which may be a sign of sediment buildup. In this case, flush the tank, or call a professional for help with a replacement. How long does your water heater take to heat up? Peter Gray. Sensible Digs. Table of Contents. Gas Water Heaters. Electric Water Heaters. Heat Pump Water Heaters. Tankless Water Heaters. You Might Also Like. About the Author Peter Gray. Traditional tank water heaters are sized according to how many gallons of hot water they can hold at once.

How it affects recovery time : The higher the first hour rating, the shorter it takes for the water heater to heat up all of its water. How it affects recovery time : Electric water heaters take roughly twice as long to heat water than gas water heaters. Gas water heaters are, across the board, much faster at heating water than electric water heaters.