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ehstars's avatar
ehstars
Explorer
Aug 25, 2020

6 gallon hot water heater only delivers 4 gallons

Hello, I have a 6 year old Suburban SW6DE water heater which only gives me 4 gallons of hot water. This short change just started recently. The water gets heated to 135 degrees on either propane or el...
opnspaces's avatar
opnspaces
Navigator II
Aug 25, 2020
How are you measuring 4 gallons of hot water?

Check that your winterizing bypass valves are not partially bypassed. Also checked the outside shower and make sure the hot and cold knobs are off.

After that I would drain and flush the tank as it might be full of sediment and insulating the burner.

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