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[Sloppy_Snood]

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.  -Sloppy

[Jwood]

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.

[slimjim]

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.

[Jwood]

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 ).

[slimjim]

How about tying 2  three loops together and have a spare

[Jwood]

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

[Jwood]

Here is what I have

[slimjim]

Ok, nice manifold, for anybody interested, how much?

[Jwood]

If someone wanted to give me 100 bucks that would work for me.

[slimjim]

That would make somebody a good deal!

[Jwood]

Ya that would make it worth it to someone maybe

[LittleJohn]

Do you need a SS pump?  Cause if you don't you can save a small pile of $$$ on pumps

[mlappin]

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.

[Sloppy_Snood]

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.

[LittleJohn]

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