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Thread: 2 challengers/boiler buddy
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10-19-2012, 05:16 PM #1
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2 challengers/boiler buddy
Had an emergency change out. It's not finished and yes the gas tight looks like **** but I don't know what to tell ya.
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10-19-2012, 09:01 PM #2
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Have you used many Alpha pumps? How do you like them?
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10-19-2012, 09:06 PM #3
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Those were my first alphas, there really cool, they are supposed to ramp down to nothing so you don't need a pump control. If they work like the should I think for the price they would be worth it. I haven't had a chance to really look into it but as far as I could tell they didn't shut off all the way.
Originally Posted by SolarMike
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10-19-2012, 09:32 PM #4
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they are nice pumps but, wont move a lot of GPM at higher head.
i have read a lot of curve charts for various pumps. A lot of good info to read when you think you have the proper GPM for a boiler
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10-20-2012, 07:55 AM #5
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Nice work
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10-20-2012, 12:41 PM #6
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BTW, The job looks good.
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10-20-2012, 12:52 PM #7
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This is a temporary setup?
The electric to you zone circulators is just draped all over. Steel to Copper connections.......is a no-no. Is that an expansion tank laying on the ground with tubing to the drain of the buffer tank? Air separator?
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10-20-2012, 01:24 PM #8
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It's not done yet, had 2 days to get it running for the weekend, also Waiting on the right size exp tank, I buttoned up the wiring after, also have a tekmar to install.
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10-20-2012, 09:18 PM #9
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What's wrong with copper to steel? Spirotop on top of the boiler buddy. Originally Posted by ascj
I love my job, but paydays Thursday
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10-20-2012, 11:11 PM #10
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Cu to steel is fine in hydronics, ya it comes with a spyro vent.
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10-21-2012, 02:25 PM #11
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I was not familiar with the Boiler Buddy.......but apparently a air vent on the top of the buffer tank is all that is needed. They incorporate air elimination into the buffer tank. As far as, copper to steel in a closed loop........it isn't black or white. So it's better to be safe than sorry.
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10-21-2012, 02:30 PM #12
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It's mainly about electrolysis, a domestic water line is grounded and oxy rich. A boiler is neither. I helped a boiler maker change out the tubes in a 300 gallon water boiler, if a hole in the plate was to large a copper sleeve was inserted and the tubes were rolled tight against that. That is standard procedure and a state inspected job, after that day I changed my opinions. Originally Posted by ascj
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10-30-2012, 05:10 PM #13
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Nice looking work!
I don't see the point to a boiler buddy with a mod/con boiler but that's me. Seems like a really expensive way to decouple primary/secondary loops. Why not just do closely spaced tee's and a spirovent in one of the loops? Cast iron non-condensing non-modulating boiler is a different story, short cycling is much more of a concern ...
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