Radiant Mixing Block Zoom

Radiant Mixing Block

SKU:RMB-1

Brand: Taco

Taco
Qty Price
$970.95
/ each
In Stock! Ships in 24-48 Hours
(16 Available)
3

Specs

Application: Mixing
Size: 3/4"
Connection Type: Female NPT
Flow Range (GPM): 0 to 15.5 gpm
Head Range (ft.): 0-15
Max Pressure (PSI): 125 psi
Temperature Range (F): 32°F to 185°F
Display: LCD
Ambient Conditions: Indoor Use Only
Features: Outdoor Reset
Hard Wire Option
Plug-in Low Voltage Connections
Boiler Protection
Adjustable Reset Ratio
Integral Check Valve
Auto Pump Exercise
Warm Weather Shutdown
Includes: Line Cord

Description for Taco RMB-1

The Taco Radiant Mixing Block is a breakthrough in the design, control and installation of radiant systems. The RMB-1 is a complete injection mixing system, combining a variable speed injection mixing control, injection circulator, system circulator and air elimination all in a single unit. You get unmatched versatility and performance as a result.
Use as an outdoor reset control, a setpoint control or a delta T limiting control. Requires only four pipe connections for complete installation.
Does not require special piping, balancing valve, closely spaced tees, external control or complex wiring.
Features Include:
Plug-In, Low Voltage Connections
Solid Stage Microprocessor
Replaceable Cartridge Design
Maintenance-Free, Wet-Rotor Circulators
Bronze Casing for Open or Closed Systems

Radiant Mixing Block

REVIEW SNAPSHOT®

by PowerReviews
TacoRadiant Mixing Block
 
4.0

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

67%

of respondents would recommend this to a friend.

Pros

    Cons

      Best Uses

          • Primary use:
          • Personal (3)

        Reviewed by 3 customers

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        5.0

        My second purchase of a RMB-1.

        By The Lodge

        from North East Alabama

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Radiant Mixing Block:

              One RMB-1 in garage 6 years ago tied to a LP tankless HW. Keeps garage temperature at setting. Second RMB-1 is being installed in main house. Note- You may want to remove the check valve on the boiler input. At certain flow rates it will buzz and sound like a motor bearing is bad. PexSupply.com the name says it all at a good price.

              • Primary use:
              • Personal

              (1 of 2 customers found this review helpful)

               
              2.0

              Expensive- use the K.I.S.S. Principle

              By Russ

              from Allentown, PA

              Verified Reviewer

              Pros

                Cons

                  Best Uses

                    Comments about Radiant Mixing Block:

                    I added radiant heat and I thought this was my answer to control temperatures/boilers more efficiently. I wound up using this as a simple "setpoint" setup. Very similar to an ordinary "mix valve". When it works it is very good. However, upon some power interuptions I have to reset the unit or the injectionpump locks at minimum giving me 70 degree heating water instead of the requested 130 degree water. Taco is no help and blames my setup ignoring the fact that it works some of the time. If I had to do this again, I would use a simple mix valve. No need for the complicated electronics here. Use the K.I.S.S. principle.

                    • Primary use:
                    • Personal

                    (2 of 2 customers found this review helpful)

                     
                    5.0

                    Dollars & Sense - the only way to go!

                    By R.E.Farrelly

                    from Windsor CT

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about Radiant Mixing Block:

                          I purchased two RMB's for my system. One was for use in my newly installed radiant heat system (addition) and the second was installed on my older existing cast iron radiator system.
                          The new radiant heating system can now be controlled to perfection.
                          The older system is much more efficient and we no longer have "spikes" in the heating cycle. We are also protected from shocking the boiler with a surge of cold water into the return.
                          While the RMB's can be expensive, I am now heating a larger area for a lesser cost and doing it much more efficiently with the same(existing) boiler!

                          • Primary use:
                          • Personal

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                          Q&A: Ask the Questions, share answers

                          Do you have questions about this product?

                          get answers from real customers and in-house experts with AnswerBox.

                          3 Questions | 4 Answers
                          Displaying questions 1-3
                          • Radiant Mixing Block

                            Q:

                            I am working on a Taco RMB-1, The bottom circulator has a bad electro maginet ( the black can that the cartridge sits in ) where do I get the part, what is the part # ?
                            Asked on 11/19/2011 by Anonymous

                            2 answers

                            • CUSTOMER CARE

                              A:

                              The replacement part is 193-016RP.

                              Answered on 11/23/2011 by PexSupply Staff from NY
                            • A:

                              The circulators in this device are regular Taco 006 type. Just use the same circulators and repair kits for the 006 type circulator. I seriously doubt the magnet is to blame. Just get the repair cartridge and it should fix the problem.

                              Answered on 2/14/2012 by Russ from Allentown, PA
                          • Radiant Mixing Block

                            Q:

                            I am looking to replace the sensors outdoor/indoor on my RMB. Which ones will I need?
                            Asked on 8/3/2011 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              The outdoor sensor is part number 9300-2052RP and the strap-on sensor is part number 9300-2044RP.

                              Answered on 8/3/2011 by PexSupply Staff from NY
                          • Radiant Mixing Block

                            Q:

                            I am currently using a Takagi TK-3 tankless water heater to heat my basement slab and to supply my DHW. It's a closed system with a HX separating the two. I am getting ready to add another manifold to heat the upstairs. Would this RMB be useful for this application?
                            Asked on 9/1/2010 by Big Lar from Adrian, MI

                            1 answer

                            • CUSTOMER CARE

                              A:

                              The pump in the RMB is a Taco 008, as long as that pump can handle the GPM and head pressure of the system, yes you can use it.

                              Answered on 9/3/2010 by PexSupply Staff from NY
                          Displaying questions 1-3

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