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Posted by Stephen on March 27, 2008 at 07:38:39:
In Reply to: New Steam Boiler for home- size? posted by AJ on March 25, 2008 at 19:35:45:
: We have an 1860 victorian. ABout 17 rooms and 3900 square feet. We have a 35 year old oil furnace. We are buying a new furnace with Natural Gas. I ahve had several estimates. I dont think any of the contractors did a sqare feet of steam measurement which I understand is how a determination is made. One contracter said 150-180,000 BTU boileer. One said at least 200 BTU and another was 250000 BTU.
: I did the square feet of of steam by measureing the raditors throughout the house, we have 16 radiators. I get a total of 915 square feet. By this rating I need at least 300,000 BTU of furnace. This seems like a high amount. I understand that the radiators might be excessive or to big for rooms. Not all colums or sections heat on some. Any suggestions. I dont want to buy the wrong furnace . Thanks
Then get at least 300K. New boilers generally do not have the same volume or disengaging space. You must have enough capacity to fill all radiators simultaneously or some may never heat.
Recommend "The Lost Art of Steam Heating" by Dan Holman.
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