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 Post subject: Blackstaff Boiler - Fuel conversion
PostPosted: Thu May 17, 2018 7:26 am 
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Lighting the Boiler
Lighting the Boiler

Joined: Mon Feb 24, 2014 11:08 am
Posts: 42
Boat Name: The Nell
Does anyone have any experience of converting a Blackstaff 3-drum, WT, boiler from liquid fuel to coal firing? I have my reservations as loss of water in a copper boiler that has immediate fuel cut-off appears less problematic than loss of water in a copper boiler where the fire has to be drawn. However, I believe it has been done.
Any pointers and/or plans would be very welcome.
Thank you.
OS


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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Fri May 18, 2018 6:42 pm 
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Full Steam Ahead
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Joined: Fri Mar 07, 2014 5:38 am
Posts: 477
Location: South Lake Tahoe, CA, USA
Boat Name: Wayward Belle
Other than what you previous mentioned I don't see any issues with burning solid fuel in a Blackstaffe boiler. I'm sure there are plenty out there that have done it. I think one of the factors in most using liquid fuel is the grate area being more restricted than say a Robert's style boilet due to the coiled tube arrangement, making solid fuel firing a little more challenging.

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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Fri May 18, 2018 6:56 pm 
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Lighting the Boiler
Lighting the Boiler

Joined: Mon Feb 24, 2014 11:08 am
Posts: 42
Boat Name: The Nell
Wesley,
Thanks for comments. Since penning the above, I have done more research and found that coal-fired Blackstaffes are more common than I thought. All I need now are the plans and if the SBA plans service wakes up, I may have those - I hope. If not I still hope for a response from here. They must be out there somewhere.
OS


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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Sat May 19, 2018 6:12 am 
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Full Steam Ahead
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Joined: Fri Nov 20, 2009 5:34 am
Posts: 1500
Location: Phila PA USA
Boat Name: Margaret S.
Having some trouble understanding your post. On loss of adequate water level, fire should be pulled or otherwise stopped from producing heat, independent of firing method.


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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Sat May 19, 2018 7:03 am 
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Full Steam Ahead
Full Steam Ahead

Joined: Mon Dec 14, 2015 2:12 pm
Posts: 163
Location: Very eastern England
Boat Name: Platypus, Shelduck
fredrosse wrote:
Having some trouble understanding your post. On loss of adequate water level, fire should be pulled or otherwise stopped from producing heat, independent of firing method.


I think he means it takes longer to damp down a coal fire than turn the fuel off to an oil burner. OK, it does, but the extra time shouldn't be a problem: the key thing is to notice promptly that the water level is too low in the first place.


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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Sat May 19, 2018 7:08 am 
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Lighting the Boiler
Lighting the Boiler

Joined: Mon Feb 24, 2014 11:08 am
Posts: 42
Boat Name: The Nell
Correct - Shutting off liquid fuel is a matter of closing one valve; drawing a coal fire takes comparatively far longer. Perhaps not so critical with a steel boiler but more so with an all-copper boiler.


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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Sat May 19, 2018 3:25 pm 
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Joined: Fri Nov 27, 2009 5:56 pm
Posts: 1514
Location: Northwest Detroit
Boat Name: Iron Chief
One thing to keep in mind with a solid fuel firebox, when the fuel door is opened, that in itself is pulling cold air in over the top of the fire which is going to drop the temperature of the flue gas.

-Ron


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 Post subject: Re: Blackstaff Boiler - Fuel conversion
PostPosted: Sat May 19, 2018 3:33 pm 
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Lighting the Boiler
Lighting the Boiler

Joined: Mon Feb 24, 2014 11:08 am
Posts: 42
Boat Name: The Nell
To revert to the original question, does anyone have/know where I can acquire plans?


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