Outdoor Wood Furnace Info
All-Purpose OWF Discussions => Plumbing => Topic started by: Sloppy_Snood on April 25, 2014, 07:56:58 AM
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For those who have experience aand/or installed systems, could you please recommend manufacturers and models of stainless steel recirculation pumps and manifolds for radiant floor heat? :-\ (Note: this will be an open system installation).
I just am fishing for what to look at and have no intention of starting a Ford vs. Chevy debate.
I just want to compare what is "out there."
Thank you for leads, links, and suggestions. :thumbup: -Sloppy
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Take a look at the Grundfos Alpha I believe the run about $250 for the stainless but you should eventually get your money back on your electric bill.
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Taco has a nice prefab manifold, get the one with flow meters and valves already installed and ask the supply house to help you with the layout, manufacturers sell them, the supply house knows the application in the field.
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Rehau has some really nice ones as well that's another option
Rehau Pro Balance
I actually have a 3 circuit pro balance that I don't know what I'm going to do with ( I need a five for my basement ).
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How about tying 2 three loops together and have a spare
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The Rehau can be hooked up in series like you are saying slim the price for a 3 circuit and 5 circuit are not that far apart so I figured if I could sell the 3 circuit then I'd be better off
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Here is what I have
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Ok, nice manifold, for anybody interested, how much?
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If someone wanted to give me 100 bucks that would work for me.
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That would make somebody a good deal!
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Ya that would make it worth it to someone maybe
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Do you need a SS pump? Cause if you don't you can save a small pile of $$$ on pumps
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My Grundfos cast iron was still working just fine this winter when I changed it out to play around with a Taco Delta T pump. Took it apart even, no noticeable corrosion.
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Do you need a SS pump? Cause if you don't you can save a small pile of $$$ on pumps
Mainly because mine will be an open system. I'll pay the $$$ premium for stainless steel. ;)
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I would agree with Jwood, SS Alpha is about the $$ as a 3 speed SS Grundfos -> Alpha might even be cheaper. and with the auto-Adapt you should not be overpumping system. In regards to manifold, any Brass or stainless steel should work, I think there are even a few plastic manifolds out there (would check temperature rating before I installed a plastic manifold)
Sloppy_Snood, sorry forgot to read initial post, but to my credit you only asked about SS pumps/manifolds did not clearly state OPEN System
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I would agree with Jwood, SS Alpha is about the $$ as a 3 speed SS Grundfos -> Alpha might even be cheaper. and with the auto-Adapt you should not be overpumping system. In regards to manifold, any Brass or stainless steel should work, I think there are even a few plastic manifolds out there (would check temperature rating before I installed a plastic manifold)
Sloppy_Snood, sorry forgot to read initial post, but to my credit you only asked about SS pumps/manifolds did not clearly state OPEN System
No blood, no foul. I'm not crying on this. You are indeed correct sir. I'm just doing stainless circs, manifolds, etc., as much as I can to keep corossion sources to a minimum (but admittedly, my "backup pumps" will probably be carbon steel until I can save my non-Obama-snatched pennies up to afford 304 stainless backup pumps). :thumbup: (http://forums.maxima.org/images/smilies/redbull.gif)
In the not-so-esteemed words of my non-high school graduate buddy Jason, "It's All Good Dawg!" (http://forums.maxima.org/images/smilies/snoop.gif)
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Stainless pump in my opinion are definitely the way to go! What's a couple hundred extra bucks between a couple pumps, when we are spending the money on doing it the best way for the system and longevity. I say its well worth the money!
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Aren't the vast majority of OWB installations considered an "open" system? It was my understanding that the system had to be pressurized to be a closed system. Forgive my ignorance. I've just not seen open vs. closed conversation regarding OWB installations. Most of the time it is regarding indoor gasser systems. I just ordered a Ridgewood stop so now I'm reading up on systems.
Thanks!!
Farmer
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You are right Farmer, the majority are open to the atmosphere and it is for safety!
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Plus once you go closed loop there are some other safety features that are required, mainly an expansion tank and a pressure relief valve.
The pressure relief valve woudl be similar to the one found on all hot water heaters, accept its usually set around 35 psi; not 100-150psi like a hot water heater
The expansion tank for you average OWB would be HUGE, cause it has to absorb the expansion of 100's of gallons of water.