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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...
BB_TX's avatar
BB_TX
Nomad
Aug 25, 2020
You will not get 6 gallons of hot water. The cold water coming into the water heater cools the existing water that is already hot gradually turning it to warm water. And the recover rate of the water heater is not fast enough to overcome that. And the colder the incoming water is, the faster it will cool that existing hot water giving you even less hot water.

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