Air Sealing a 1920’s ARCO Boiler

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sopcopotoptop
New Member
Posts: 19
Joined: Fri. Mar. 28, 2014 10:11 am
Hand Fed Coal Boiler: National Radiator Company
Coal Size/Type: Nut-Stove/Bituminous
Other Heating: Antique "Buckeye" Cast Iron Fireplace Insert

Post by sopcopotoptop » Fri. May. 10, 2024 9:51 am

Hi! As I continue to restore this 1920’s American Radiator Co. ARCO Ideal water boiler I am looking for ways to seal the combustion chamber and generally make it air tight so that I have the most controlled combustion air flow I can achieve. Modern boiler sections are sealed with fiberglass or graphite impregnated rope and some sort of squeeze-out sealant. Any reason I can’t do the same with this boiler? Not only the water sections but all of the doorways, dampers and other access points.
I have pretty much totally disassembled it down to the last nuts and bolts, removed all of the rust with muriatic acid and primed with Rust-Olem Farm & Implement gray primer. All hardware is being replaced with stainless steel as the originals all had to be ground off. All will get a coat of gloss black paint once re-assembled in place. Thoughts would be appreciated. Thank you.

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lzaharis
Member
Posts: 2380
Joined: Sun. Mar. 25, 2007 8:41 pm
Location: Ithaca, New York
Stoker Coal Boiler: Keystoker KAA-4-1 dual fuel boiler
Hand Fed Coal Boiler: former switzer CWW100-sold
Coal Size/Type: rice
Other Heating: kerosene for dual fuel Keystoker/unused

Post by lzaharis » Mon. May. 13, 2024 10:19 am

You should visit the Mcmaster Carr home page to obtain
all your boiler sealing and gasket needs in one stop.

You have to keep in mind this boiler was designed as a
gravity fed boiler when and if you intend to use it for
heating and it needs to be pressure tested.


 
sopcopotoptop
New Member
Posts: 19
Joined: Fri. Mar. 28, 2014 10:11 am
Hand Fed Coal Boiler: National Radiator Company
Coal Size/Type: Nut-Stove/Bituminous
Other Heating: Antique "Buckeye" Cast Iron Fireplace Insert

Post by sopcopotoptop » Mon. May. 13, 2024 10:33 am

Thank you for the information. I intend to do a hydrostatic test to at least 50 pounds once re-assembled.

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