Power vent water heater noise level
We have a power vent water heater that cycles on and off throughout the night. The noise is not a problem during the day but I would like to eliminate it as much as possible at night. Is it possible or advisable to install a timer so that the fan will only come on at certain times? Does the thermostat reset to the lowest level when the unit is turned off and then back on (e.g. after a power outage does it need to be reset?)
Easy way to test if it needs to be reset after a power failure: Trip the breaker.
Have the same problem
Heater installed in a utility room beside MBR
Thermostat set on 125 F, cycles thru-out the night. But cycles only 2 or 3 times for about 5 min.
Model AO Smith Effex 40 gal
Talked with AO Smith trying to cover any angles. No result..
Other problem is the humming transformer. They claim it is normal.
Like Dan said you get used to the noise to the point where you don't register anymore.
Could probably spend money to soundproof the utility room. Is it worth?
I'd spend my time soundproofing the utility room - perhaps start with an insualtion blanket that can be wrapped around your entire heater.
noisy hw heater
If he has the same type a I have (AO Smith) wrapping the tank will not work since the powerfan is attached to the tank and has slits to suck in surrounding air.
Soundproofing the utility room is a better solution. Just don't make it airtight. The bad side is if there is an opening somewhere in the room (door-undercut) sound will travel; you will not get it 100% but it will improve it
Air must be allowed to enter the fan, but I don't see anything wrong with wrapping the tank as long as room is left for air to enter to the fan.
I don't think a timer would hurt it. It's not like there are sensitive electronics in the thing - It's just a thermostat and fan.
Why not give it a try and see what happens? And come back to let us know?