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Posted by HeatPro on September 27, 2008 at 16:57:35:
In Reply to: Re: Upgrading an old "DOG" H.B Smith BB14 posted by jeff on September 27, 2008 at 15:51:35:
THEREFORE -
you need to know the square feet of steam radiation that you have in the house plus at least 25% more capacity.
http://www.heatpro.us/steamtree/documents/22750FD84D9A7C879F7B8F54BDC02488BE22CA0F.html