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Hi, I think I was not clear a little bit. My boiler is an oil fired domestic one with a draught burner. And it is a shell boiler with a condensing unit to increase eficiency. It is not a drum or lokomotive boiler for solid fuel. That is why I cannot find any usefull formula in ASME code. My...

Hi, No, it is just easier to use angles as stays. Easier to produce and less leaks after welding and the stays can work as water baffles to increase water flow time thru the boiler. I found the answer for my question yesterday (mighty internet ;)). I got a report made by a US company for another...

Hi, It is possible this way - see att. sketch I hope it helps even it is so latehttp://files.engineering.com/getfile.aspx?folder=d7f44f62-7425-4122-8982-9cb9b7cf6f4f&file=Inventor_view_1.jpg

Hi, I am looking for an answer how to calculate a rectangular fired heating boiler with waterway around? All sides are flat and stayed. Stays are angles welded to both internal and external shells. See attached picture. Any idea? As I do not see any suitable paragraph to calculating the design I...

Hi, I am looking for an answer how to calculate this kind of oil fired heating boiler as on attached picture? Output about 100kW. On the picture you can see some kind of firebox boiler with waterway around. Flue pipes and angles work as stays. Any idea? Thanks Zdzislaw

Thanks GenB for your answer. This is my company's web site: www.firebird.ie where is almost every our product for British and Irish markets.

Hi everyone, My company wants to sell condensing heating boilers on US market. These are oil fired heating boilers up to 70 kW made from mild and stainless steel. As they work under 3 bar (45 psi) pressure we need to stamp them by a H stamp. More less we know what to do but I have problems with...