Eliminating corrosion in carbon steel wood fired water heater

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I am building a wood fired hot water heater using carbon steel and am concerned with corrosion. I have considered galvanizing but find it not cost effective. I considered sodium silicate (water glass) but don’t know about longevity. Any suggestions?

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[+1] - JTT - 11/03/2009Is this for year round use, ie. for domestic hot water or just for heating, Dockman? If you use dielectric unions, I don't think that corrosion would be a major problem. What about a...

@dockman,

Is this for year round use, ie. for domestic hot water or just for heating, Dockman?

If you use dielectric unions, I don't think that corrosion would be a major problem.

What about a sacrificial anode? Didn't H2o heaters used to have those?

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Eliminating corrosion in carbon steel wood fired water heater

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