Question about Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF
The page linked to below has a checklist of causes for gas and electric water heaters.
Some high points to look for:
Are the pipes on top of heater dry?
Is the vent pipe clean and new-looking or is it discolored?
Improper vent pipe causes condensation that can drip down and rust out the combustion chamber.
Is the TP overflow pipe dry, or has it been releasing water?
Is the drain valve leaking?
Tank could be rusted and ready to fail:
Here are the red flags
Water heater is older than 6 years.
The heater has never been flushed to remove sediment.
The amount of hot water has decreased ... tank can fail even amount of hot water is the same.
House has a water softener and anode rod inside tank has not been checked or replaced.
If you feel your tank is rusted and ready to fail, it is important to reduce the pressure inside the tank until you can get tank replaced.
To do this, turn the thermostat to vacation.
Turn off the water valve above the tank.
Open a bathtub spigot on the hot side.
Keep thermostat on vacation setting except when you need hot water.
Keeping the pressure down by removing the heat source will let you 'limp along' until you have the time/money to purchase a new water heater.
Keep in mind a tank failure will flood the surrounding area, and the water will run until it is shut off.
It is very important to keep the water shut off to a tank in this condition, except for short periods when you need hot water.
Hot water strategy for limp-along:
Typical rule-of-thumb, a new gas heater produces 41 gallons of hot water per hour. There are tanks that produce a lot more depending on recovery and first-hour ratings.
A bath uses 10-13 gallons hot water, a shower uses 6-9 gallons hot water.
So your limp-along water heater can be turned on for brief periods of time and still provide hot water.
If you want to economize your water heater, or are looking for savings-factors to consider when buying next water heater, read the following:
Posted on Nov 08, 2010
If you'r really lucky you may find a leaking fitting on top of the water heater thats draining down inside the shell and out the bottom, otherwise its time to replace a rusted out water heater.
Posted on Nov 08, 2010
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Posted on Jan 02, 2017
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