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Honeywell Actuators

Alan (California Radiant) Forbes
Alan (California Radiant) Forbes Member Posts: 4,566
in THE MAIN WALL
From what I remember, Honeywell took over the Sparco line and then these were discontinued. Is there a replacement?


8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

Two btu per sq ft for degree difference for a slab

Comments

  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,566
    edited May 2023
    But now that I've written it down, it occurred to me that I've seen that style before. I dug through my contraband and found these unused Wirsbo ones which look identical. Thanks, everyone!


    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
    GGross
  • hot_rod
    hot_rod Member Posts: 25,785
    Originally Sparco Powertrack, then Honeywell Sparco. Wirsbo and maybe Embassy used them also.

    I suspect a thermal actuator may work also. Need to try one on an old manifold if you ever come across a manifold changeout.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream

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