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Posted by Dave on February 20, 2001 at 11:13:15:
In Reply to: Relocate Water Heater posted by Jim on February 19, 2001 at 16:59:25:
CAUTION: When draining the tank, water is extremely hot. When checking the relief valve, water will openly discharge out the pipe.
It's is alright to relocate the heater and run the water back. Be sure that you include all required shut-off valves. Consider insulating the water pipes (http://www.insidespaces.com/howtopages/pipe-insulation/pipe-insulation.shtml).
DO: You will want to drain the tank. If your heater is more than 10 years old, consider replacing the anode rod. This rod is designed to protect the inside of your tank from corrosion. With the unit off and drained down, unscrew the large hex bolt on the top of the tank. You should clean the tank now by adding citric-acid based cleaning product from the plumbing supply house. Install the new cathodic anode and follow instruction for the cleaning agent.
DON'T: If this is a gas-fired unit, do not do the suply line feed yourself. Get a professional for that.
DON'T: If the unit is electric, do not create an inaccessible junction box to extend the cable.
DO: Check with local building codes and seek professional help if needed.