Steam boiler sizing

Nron_9

Does one know how to size the but out put for steam boilers , this is a old liberity boiler
H 5'-7"
w 25"
L 4'-8"
11" Vent and 11/4 gas valve

Steamhead

Do you know

who made this boiler? Find out and click on the link to the Library (upper left), and look in the Beacon Boiler Reference section.

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Robert O'Connor_5

Sizing??

Go across your street and stand on the curb, then hold up your hand until you have completly covered your house, now how many fingers did it take to cover it completly? Thats how many sections you need. An even easier way is to just look at the rating plate. In all, I WAS KIDDING!! You need to calculate how much radiation (radiators) are connected to the system. Steam system boiler sizing is done by measuring the height, and width of each radiator. Count the number of tubes in each section. Count the number of sections. Determine the square feet of radiation in each section (your gonna need a chart for this I unfortunatly can't provide but will bet its either in the Library to the left or someone else will post). Total the square feet of radiation for all the radiators in the building. Convert the total square feet of radiation to BTU/hr. Each square foot of steam radiation is based on a heat emission of 240BTU/hr. with standard 70 degree air temperature and 215 degree steam temperature in the radiator. Size the the replacement steam boiler by selecting a unit with a NET I-B-R Steam rating equal to or greater than the BTU/hr. capacity of the radiation. Its easier than you think and if you do it right you will save fuel costs by not oversizing the unit. Even a novice should be able to do it in an hour (based on an average size house).Good luck..Robert O'Connor/NJ

todd s

Please

Listen to these replies. This is the ONLY right way to do this. Steam is too tricky to take chances with someone who isn't familiar with it. If you start with a copy of "We Got Steam Heat" in the host's "books and more" section, you will understand how important your next steps are.

Nron_9

Sorry guys the steam boiler is an old liberity and it does not run heating for a building there are no radiators on the system only a hot tank for water the tank is about 6.6 ' by 4' by 2' deep and they use it to scald pigs during slauter ther are no rating plates that i can find and i can size the tank to heat in areasonable time but what due you add for 250 lb animals that go in one by one and keep the heat betwen 160-180 F