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Replace Peerless JOTTW 175-S with Burnham MST

USA498
USA498 Member Posts: 45
in Strictly Steam
This summer I am going to replace my 20+ year old Peerless JOTTW boiler with a Mega Steam from Burnham.  I did the EDR calculation and came up with 407 . This is really close to the MST 396 but I also run a hot water heating loop off the H/W coil.

Is the MST 513 a better option ?

BTW I found that my  Peerless Boiler seems to be oversized for the load as it is rated for 646 sq ft of steam.

here's a link to my current system

<a href="http://www.heatinghelp.com/forum-thread/136919/Almost-done#p1234763">http://www.heatinghelp.com/forum-thread/136919/Almost-done#p1234763</a>

Comments

  • Rod
    Rod Posts: 2,067
    Replacement Boiler

    Hi- Go with the MS 396 as it is very close to your 407 total EDR.  The pickup factor will take care of the HW Loop as long the the Loop EDR doesn't exceed the factor.

    - Rod
  • Steamhead
    Steamhead Member Posts: 17,314
    What exactly is

    the output of the hot-water loop?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • USA498
    USA498 Member Posts: 45
    hot water heating loop

    steamhead



    the hot water loop is 10' of slantfin baseboard.
This discussion has been closed.

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