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Posted by HeatPro on July 06, 2008 at 19:21:21:
In Reply to: Cast Iron or Copper Tube boiler posted by Bill Hutchison on July 06, 2008 at 18:26:08:
Yes, going to one burner makes sense. Not much sense in having two units stay hot 24/7 all year.
A cast-iron boiler acts as a mass of metal to give a longer heating with less chance of banging. However, most aren't able to get over 87% efficiency due to condensate rusting the metal.
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