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If you just filled the tank on a 40 gal. about 30 to 45 min.

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Q: How long does it take to heat water in a hot water tank?
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Related questions

How long does it take for a heater to heat up the water in your tank?

Less than 3 minutes! It shouldn't take that long


How long does it take for tank water to heat up without a heater?

Tank water will slowly warm to ambient temperature. It will not get any hotter.


How long will it take for a used 60 gallon hot water tank to heat up?

14 hours


How long does it take for hot water after lighting a hot water tank?

how long does it take for hot water after lighting water tank its gas?


How long does it take for a new element to heat in a 30-gallon water tank?

This depends how many kilowatts are running through the element, but it can take anything from one to two hours.


How long does it take for toilet water to reach the septic tank?

That would depend on how far it was to the septic tank.


How long does it take for fish water conditioner to settle so you can put your fish in its tank?

20 minutes


If you remove 7 gallons a day from a 65 gallon water tank how long will it take you to empty the tank?

9.2 days to empty the tank.


Can you use a charcoal starter to heat water tank?

A charcoal starter cannot readily be used to heat hot water tank as it produces far too little heat. A hot water tank requires several thousand BTU's of constant heat to bring the water up to temperature.


Does the boiler heat the water at first then supply it to the hot water tank?

No, a hot water tank heats water by itself.


Does the boilder or furnace heat the water at first then supply it to the hot water tank?

No, a hot water tank heats water by itself.


Where is the copper coil in hot water heaters?

A water heater that is a tank does not have copper coils. If gas fired, there is a burner at the bottom that heats the water in the tank the same way a tea kettle is heated on the stove. An electric heater has two heating elements in the side, top and bottom that heat the water. A tankless water heater has a coil with a flame in the middle that heats the water. This type heats the water as you use it and for as long as you want. An indirectly heated tank has a heat exchange coiled tube (calorifier) mounted inside the skin of the tank. Hot water or steam travels through the tube and radiates heat into the tank water.