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Suppose a novice plumber -- a completely hypothetical novice plumber -- removed the top heating element in their electric water heater before the tank had sufficiently drained, resulting in about a gallon of water spurting out not only into the basement, but also down the inside of the device, soaking into the insulation to the extent that the foam around the lower heating element and thermostat squishes and dribbles forth when squeezed. (Suppose said hypothetical novice plumber is not a complete fool -- the power to the water heater was cut off before the mishap and remains so now.)

Suppose this imaginary person would like to stop taking bucket baths in a precarious blend of stove-boiled water, liquid ice from the tap, and shame, and return to the glorious steamy showers they took for granted as little as a week ago. Suppose this imaginary person shares this home with others, and that a 12-year romantic relationship hangs in the balance.

Even a rookie can see the potential risk in wiring everything back up and flipping the breaker while there is enough moisture in the insulation to irrigate a small orchard. Suppose a fan has been blowing on the heating element/thermometer access points for 48 hours. Suppose that a dehumidifier has been running constantly, and that even a hair dryer has been employed from time to time. What else would you advise our protagonist do to dry out the obstreperous water heater? How much more time must elapse? How dry is dry enough?

Peter Mortensen
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universalhandle
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2 Answers2

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If you have a wet vacuum cleaner with a slotted attachment, use that first to suck up pooling water and very wet insulation. Then pull out as much of the wet insulation around both elements as you can. If it rips, that's OK because you can add it back when it dries out.

If the area around the heating elements and wiring is dry and no water is dripping or running out the bottom, you can reconnect the elements and turn on the breaker and go back to hot showers. Even if the insulation is still damp away from the elements and wiring, you'll be OK. If you're stuffing towels in between the tank and outer casing through the openings where the elements are or doing any type of drying out the inside, turn off the breaker while you're working on it. If you've got a fan you can place in front of the water heater, do it.

Peter Mortensen
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JACK
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If you have pulled away the fiberglass insulation from around the elements wire terminals (upper and lower) and waved a heat gun or blow dryer above them to slowly evaporate moisture and than checked that the surrounding area was dry than the power can be switched back on. The warmth from the heated water will dry out the remaining moisture quickly. It would be wise to dry any other electrical terminals before hand such as the thermostat or the enclosure were the household power connects to the heaters electric lines (if there is moisture present).

ojait
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