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Old 03-30-2017, 10:45 AM   #12
bigdog
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Quote:
Originally Posted by Formula260SS View Post
The Plumber is correct, mine does the same thing. I have to replace my coil every 2 years or so.

Had an estimate for coil replacement by oil dealer between $800-1,000
Coil $450 +/-
Replace anti-scalding mixing valve $150
2+ hrs labor.

On a 25+ year old furnace this may not be the most practical solution, considering the age.

They also gave an alternative suggestion to have a new valve installed on the furnace, on the water intake to the coil, and inject CLR calcium/lime treatment or vinegar, through that new valve, to remove the sediment on the coil, however, this may or may not work 100%. The downside of this treatment, it may create pin-holes in the coil , then big issues could occur, That and the fact the treatment may clog the water lines with sediments through the hot water house lines.

Another alternative solution, would be to install an electric hot water heater in the house, in a water/electrical closet I have. That estimate was $1,000. Still a TBD if this could be done ?

Thoughts?
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