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Dead Men Tales: The Model K Mystery
HeatingHelp
Administrator Posts: 703
The Model K Mystery
In this episode, Dan Holohan tells about a Manhattan co-op apartment building, where the local time (mechanically speaking) is 1949, the heat is uneven, and the radiators hold an historic clue.
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Comments
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A wonderful story, as always.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
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saw that one coming! But a great tale anyway! Hoffman equipped radiator valves have a similar adjustment inside, and I think some others do to. Harder to get at than the Model K, though!Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England1 -
Hmm, Screwdriver Willie needs to put his hands in his pockets and back slowly away!
... Then go buy (and read) some of Dan's books 
Yours, Larry1 -
Thanks for sharing Dan. I worked on a job a few years back to install TRVs and Orifices (custom drilled to size - that was my job) to a 700 radiator co-op here in Queens, NYC. Shout out to CK and HG if they're listening.1-pipe Homeowner - Queens, NYC
NEW: SlantFin Intrepid TR-30 + Tankless + Riello 40-F5 @ 0.85gph | OLD: Fitzgibbons 402 boiler + Beckett "SR" Oil Gun @ 1.75gph
installed: 0-20oz/si gauge | vaporstat | hour-meter | gortons on all rads | 1pc G#2 + 1pc G#1 on each of 2 mains
Connected EDR load: 371 sf venting load: 2.95cfm vent capacity: 4.62cfm
my NEW system pics | my OLD system pics0 -
Finally solved the mystery as to why my two-pipe system does not have traps!! I have the Hoffman No. 7 Valves that work similarly to the Model K. It's an adjustable orifice. If anyone has them and they aren't working properly, this video is an excellent video for step by step instructions on restoring them. There are two videos on these valves as there were two main versions with slight differences in build.
https://www.youtube.com/watch?v=NteDQtbL8qU&list=PLlPJg84wqAvsYicw7WaKL2bj3curx0SEd&index=1 1 -
Love that story.
Never saw a type K system.
I worked on many small and 2 large jobs where Dunham orficed radiator valves were installed. These buildings at the time were 20 plus years old and had over heated and under heated rooms. Fortunately I was able to get orifice schedules from Dunham and resolve the the heating problems in the offending rooms.
JakeSteam: The Perfect Fluid for Heating and Some of the Problems
by Jacob (Jake) Myron0 -
Sorry I forgot to mention the Reps Name.
It was Pence and Beck in Queens N.Y.
JakeSteam: The Perfect Fluid for Heating and Some of the Problems
by Jacob (Jake) Myron0 -
Hi @Erin Holohan Haskell , Thanks for bringing back Screwdriver Willie and the rest of the cast. Good stuff 💖
Yours, Larry0 -
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i feel like i unsuccessfully try to explain this to someone once a week.0
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