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Information on Weil McClain radiator

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PC7060
PC7060 Member Posts: 1,174
edited December 2022 in Radiant Heating
I’ve got four Weil Mclain radiators I purchased from an architectural salvage yard. All are hooked up and operating well. I plan to remove and have sandblasted and painted or powder coated this summer. 

Anyone know if these units have internal gaskets which may be degraded by the powder coating process?  The radiators have end to end bolts which is different from the original ones in the home. 

Thanks!

PC



Comments

  • Alan (California Radiant) Forbes
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    I'd say that the sections are joined with push nipples which are all steel although I have no idea how those outside bolts get sealed, but you should be fine.

    BTW, that TRV should be horizontal. It may be no big deal.
    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
    PC7060
  • PC7060
    PC7060 Member Posts: 1,174
    edited December 2022
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    BTW, that TRV should be horizontal. It may be no big deal.
    Thanks @Alan (California Radiant) Forbes for the information on the radiator connections. 

    Re the TRV, I’ve read the tech data on the preferred orientation being horizontal to avoid the heat from the pipe coming vertically from below prematurely shutting off the TRV. I’ve gotten good results with vertical orientation by reducing the flow rate SWT through the systems. Plus it keeps the heads protected from adjacent foot traffic