Posted by jtown on January 05, 2000 at 21:56:58:
In Reply to: GAS BOILER SPECS posted by Joe Powell on January 05, 2000 at 04:25:39:
Steam boilers have to be sized to meet the radiation that is installed. You boil so many gallons of water to physically fill the system and when it condenses it can become steam again to replace itself. Add up the radiation and write back. Look at the radiators from the room and count the sections wide (10-20 say), look at the ends and count the number of tubes (4-6 say) then the height. So you have (6) 12Sx5tx32in + etc. Roughly measure the diameter of the tubes. Early ones were 2-1/2in or so, modern thin tube are about 1in. I don't know of a table on-line, but I can give you total sq ft EDR, equivalent direct radiation. Boiler is the next size bigger.
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