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Vertical boiler design

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fizzy04/11/2013 20:55:46
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1554 forum posts
104 photos

Ive built quite a few in copper for small engines, but now want to build a steel one big enough to easily power a Stuart 5a sized engine without running out of steam! It will also need to provide enough power to allow the 5a to pump water to the boiler. Ive read a few books but cant fathom what size it should be. Any suggestions? Boiler will have 1/2" copper tubes, pre heat coil etc. Coal fed, conventional design. I recon it will need to be quite large! (You cant compare a horizontal loco boiler, they are just too different).

Tony Martyr04/11/2013 21:40:44
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174 forum posts
37 photos

fizzy

Not an answer to your query I fear but a fellow seeker!

I have exactly the same problem although I would want to fit a ceramic gas burner rather than struggle with coal firing again.

Since moving to deepest southern Shropshire I haven't found any of the model engineering fraternity within a days march of home so I will have to use this forum for advice.

Tony

Paul Frost 126/11/2013 07:12:42
1 forum posts

Hi,

How big a boiler? Try going to **LINK**

Maccsteam.com has the formulas needed for you to work this out. 6” and 7” Copper tube is available, my big steam boiler is made from 1/2” steel pipe cant be moved without a crane weight is a big problem,

Good luck

Paul

gedeon spilett04/12/2013 16:58:44
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30 forum posts
6 photos

Hi

for a large engine too, I was tempted to build a boiler similar to this one, riveted and soft soldered only, it looks nice and strong, or should I stop to chicken out and go for a brased job ?

**LINK**

Cheers

Zephyrin

hush04/12/2013 18:16:38
15 forum posts

There is an excellent book titled Model Boilers & Boilermaking by K N Harris, it is a worthwhile book to search out.

full of ideas and technical information, it was published by Argus Books Ltd of Watford. in the 1980's

Regards Hush

Trevor Drabble04/12/2013 23:33:57
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186 forum posts
5 photos

I have some excellent copies of Model Boilers and Boilermaking by Harris , at least one of which I believe is hardbacked , which I was going to put on fleabay. Will try and establish a fair price over the next couple of days and will post for your consideration.

Trevor

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