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Upgrade your Series 100 circulator

hot_rod Member Posts: 22,382
Really, any 3 piece circulator can be upgraded to variable speed. With just a few typical household items.
Chair, cardboard box, drill motor (corded or cordless) 600 mph tape (duct tape)

Broken coupling, failed motor, no worry :*

* Disclaimer may not be a factory authorized upgrade
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream


  • Alan (California Radiant) Forbes
    That's how Uncle Fester did it.
    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
    EBEBRATT-Ed Member Posts: 15,764
    I guess you do what you have to to get the heat on. A chair the right height would have helped :)
  • JDHW
    JDHW Member Posts: 76
    What a mess. The should have course used a brushless drill for the ultimate in reliability.
    Solid_Fuel_Manttekushan_3Albany Chris
  • MikeAmann
    MikeAmann Member Posts: 998
    Reversible too.
    Albany Chris
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 8,157
    Just like the old days. The electric cord on the drill can be plugged into one of these for automatic use.

    By using a cordless drill, you will know when to replace the battery. Just like going down the basement to add another shovelful of coal to the boiler.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • JakeCK
    JakeCK Member Posts: 1,403
    But are you warm, and did anyone die? Lol
  • HomerJSmith
    HomerJSmith Member Posts: 2,479
    edited December 2022
    There you go criticizing my work, I got paid big bucks for that work and saved the homeowner a lot of money. I got it passed after I bribed the inspector. I look at bribery, as a cost of doing business.
    Seriously, it may have been an emergency. It looks to be a new pump from the paint on the volute.
  • JohnGellatly
    JohnGellatly Member Posts: 10
    Have been guilty of doing similar things in a pinch to get things working until we can get the parts to do it right! Sure is pretty humorous ... the headline is right, it is creative problem solving! :)
  • boblozeau
    boblozeau Member Posts: 2
    Another job well done by Jerry Rig and Mickey Mouse.
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
    Hey MacGyver always got the girl in the end too! Besides, mullets are coming back..... 
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
  • SgtMaj
    SgtMaj Member Posts: 77
    Got to hand it to the home owner. “I’ll keep the heat on come hell or high water!”
    Albany ChrisEdTheHeaterMan
  • pell
    pell Member Posts: 23
    Have to question what does he do when the power goes out. Can't wait for that sequel.
  • Kickstand55
    Kickstand55 Member Posts: 110
    That's a big circulator. Looks like a B&G 611S, 2". Needs a 3/4hp motor.
    Must be the building maintenance guy keeping it running.
    Ya do what ya gotta do!
    ttekushan_3Albany Chris
  • Jackmartin
    Jackmartin Member Posts: 196
    I am not surprised some qualified guys (  I am using the term qualified loosely) up here would just change the drill if the drill burnt out.
     I hope this was done as an emergency measure and in that case , bravo. Happy Holidays Jack 
  • OuterCapeOilguy
    OuterCapeOilguy Member Posts: 46
    Good heavens....well, I guess it worked-at least until the drill motor burned out. Thank heavens it wasn't a 007...
  • Larry Weingarten
    Larry Weingarten Member Posts: 3,361
    Hmmm, That could be an ad for Makita. B) I do wonder about the back-story. I can just hear the words "supply chain" in there someplace.

    Yours, Larry
  • tanklessman01
    tanklessman01 Member Posts: 11
    My first love of power tools,... Makita drill.

    İt's good to see someone put it to good use... plug the Makita into an outlet, power the outlet with switching relay, you got heat...who cares about supply chain issues..

    I'll have to store this one in the memory bank for sure