Sizing a Steam Boiler Many Steam boilers are undersized for the actual NET load Determine the BTU required for the heat load Add losses for the piping, distribution, etc. Correct for the operating pressure of the boiler Correct for the feedwater temperature of the boiler
When to Replace a Steam Boiler – Three Considerations
Oct 20, 2006 · Your radiators are probably sized for steam and if you go with hot water, the rooms won't get as hot (you need bigger radiators for hot water). Do a heat loss for the entire house - you probably need a decent size steam boiler for the house and can get by with a small boiler for the addition and hot water (I think it was your option 2).
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May 05, 2020 · Steam Radiator . Steam radiators can be messy thanks to escaping steam. Many older homes with steam radiators have warped floors around the radiator area, an almost unavoidable byproduct of having a pressurized steam unit inside your house. Furnaces generating steam do so under pressure, and while it's rare, these furnaces can explode.
Jun 18, 2014 · A 1/2" line can safely carry 1-1/2 gpm of hot water and that translates to about 15,000 BTUH, which is usually more than the typical radiator will need to put out to heat the average room. If you're going to keep the old boiler, you'll have to change the trim, getting rid of the gauge glass, the low-water cutoff, pressuretrol and near-boiler
Sep 12, 2017 · Most low pressure steam boilers operate in the range of 0.5 PSI to 1.5 PSI (a half a pound to a pound an hour). Don't be alarmed if you don't see the needle on the gauge move much. If they needle is up in the 2-5 pump area, you should check with your boiler service company.
Commercial Gas Steam Boilers | Weil-McLain