I have a new Rheem electric hybrid hot water tank. What can I do to decrease its noise?; it's very loud at times, other times quiet.

run it in electric only mode

That defeats the purpose of having a heat exchanger.

they didn't ask about that. they asked how to make it quiet.

thank u!



Edited 1 times.

But, I do not think they were asking how to avoid the sound and "breeze" of the hybrid system they just paid about $600.00+ extra for.

hindsight is 20/20

? is the new heater INSIDE the home ?

If so, the sound of the heat pump (ie. compressor and fan) is probably objectionable.

These 'hybrids' are more suited for a garage.

Just like having a fridge in your 'open concept' living space.

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

one of the selling points of a hybrid water heater is that it acts like a dehumidifier in damp basements.
yeah, you can actually (depending on conditions) get away without running a separate dehumidifier.

also, depending on size, they need a decent amount free air around them. they won't work if confined to a closet.

yeh, packy


a basement !


i have lived in coastal SC so long i forgot about those

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

Basement = indoor swimming pool during a flood or sewage backup.

tank is inside basement of a house.

'loud' is subjective


if it is a true 'hybrid' aka heat pump type it WILL make compressor/fan/airflow/refrigerant type noise when the hybrid mode is operating to heat the water

BUT

it 'may' be operating outside the specs and need service and/or repair/adjustment

OR

it may have installed without the proper 'clearances'


you need an on-site visit from a licensed-insured-bonded installer to ascertain status

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

What would make new tank in electric mode by itself change back to hybrid?

? have you actually READ and STUDIED the instruction booklet that came with the heater ?

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

is this yours ?

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Yes. Similar.