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"One hour for a new water heater" for a NEW one. If its a few years old, Id wait about 2 hours or so. That way it wont get cold while you are in the shower, and it can refill at the same time that it dispenses.

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Q: How long will it take a 40 gallon water heater to heat up?
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How long to heat up 50 gallon water heater after filling it?

Usually about an hour.

How long does it take a 50 gallon gas water heater to heat up?

Around 3 hours

How long does a 40 gallon electric heat water heater at 140 degrees take to heat up after restarting with cold water?

depends on the wattage of the elements along with the temp of the cold water but i would guess an hour or two

How long does it take a 50 gallon electric water heater to heat up?

To heat up a tankful of cold water will take about an hour initially. Once it's hot, the heaters will automatically come on when temperature drops a bit .

How long does it take an 80 gallon electric water heater to heat up?

Anywhere from 6- 35 hours. Lol. No it should take around 2 hours

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An immersion heater is used to heat water for purposes such as bathing or showering. The amount of hot water produced depends on how long the heater is switched on for.

When You replaced your 50 gallon electric water heater then filled and purged the water lines how long will it take to have hot water?

Ususally about an hour or so...

My Car heater doesn't blow heat immediately when car is started?

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

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How much will a Rheem Tankless water heater affect your gas bill?

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