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Posted by HeatPro on June 14, 2011 at 17:28:07:
In Reply to: Re: Boiler sizing Measured radiators posted by JoeW@ on June 13, 2011 at 21:46:17:
: Thanks I now have the EDR for each radiator. Do I understand I now Multiply each sq./ft edr x 240btu/hr///// then add all the sums together to get the total radiation heating demand on the boiler?
Yes for the radiators. Add 25% to that for the big pipes.