Efm 350 tube boiler

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ryan20strohl
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Posts: 145
Joined: Tue. Jul. 03, 2012 10:00 pm
Stoker Coal Boiler: efm coal boiler
Coal Size/Type: rice
Other Heating: Bryant evolution heat pump

Post by ryan20strohl » Sun. Jan. 14, 2018 5:04 pm

Need your opinion on a tube boiler, I've only sold one other one that I owned, I am buying and old 350 round front look to be I good shape it's a little dirty but from what you guys see does this look good to uses, my last 350 square boiler was a flop and it was a plate used for steam, this boiler was only used in hot water.

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ryan20strohl
Member
Posts: 145
Joined: Tue. Jul. 03, 2012 10:00 pm
Stoker Coal Boiler: efm coal boiler
Coal Size/Type: rice
Other Heating: Bryant evolution heat pump

Post by ryan20strohl » Sun. Jan. 14, 2018 5:09 pm

Another question I must ask is that the boiler is cold now and sitting with no water in it is there a chance that the tubes can leak

 
Dave 1234
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Stoker Coal Boiler: 1948 International boiler, EFM S-20 stoker
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Post by Dave 1234 » Sun. Jan. 14, 2018 5:31 pm

ryan20strohl wrote:
Sun. Jan. 14, 2018 5:09 pm
Another question I must ask is that the boiler is cold now and sitting with no water in it is there a chance that the tubes can leak
Hi Ryan, I had the same thoughts on a tube 700 EFM . Filled her up with water and left it with 50 lbs. of pressure for a few days.
No issues . I drained it and put brass wool in the bottom fittings for dry storage.

Good luck with the 350 !

Dave

 
ryan20strohl
Member
Posts: 145
Joined: Tue. Jul. 03, 2012 10:00 pm
Stoker Coal Boiler: efm coal boiler
Coal Size/Type: rice
Other Heating: Bryant evolution heat pump

Post by ryan20strohl » Sun. Jan. 14, 2018 5:38 pm

Air and water for your pressure test or all water


 
Dave 1234
Member
Posts: 788
Joined: Tue. Nov. 13, 2012 9:05 am
Stoker Coal Boiler: 1948 International boiler, EFM S-20 stoker
Coal Size/Type: Buck,

Post by Dave 1234 » Sun. Jan. 14, 2018 5:53 pm

ryan20strohl wrote:
Sun. Jan. 14, 2018 5:38 pm
Air and water for your pressure test or all water
Ryan I used one port for a pressure gauge, one for a sniffter air valve, and filled it through the top opening. Then I capped it off and added the air with the sniffter valve. So almost all water.

Worked well.

Dave

 
Pacowy
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Post by Pacowy » Sun. Jan. 14, 2018 6:23 pm

Even if it leaks a little at the tube sheet when cold, if the tubes are sound at operating temps it may seal better. From pros I've talked with, it's important to focus on things that compromise the integrity of the tubes, like internal leaks, or corrosion of or physical damage to exposed tube ends.

Hope this helps.

Mike

 
ryan20strohl
Member
Posts: 145
Joined: Tue. Jul. 03, 2012 10:00 pm
Stoker Coal Boiler: efm coal boiler
Coal Size/Type: rice
Other Heating: Bryant evolution heat pump

Post by ryan20strohl » Sun. Jan. 14, 2018 6:45 pm

What do you tho k of the tubes in the pic

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