Results 1 to 12 of 12
  1. #1
    Join Date
    Jan 2008
    Location
    Ottawa, Canada
    Posts
    167

    Munchkin Boilers

    Any of you guys have the opportunity to work on Munchkin boilers? Had a bit of a nightmare today with a few of them at one of the schools we service. Very "awkward", to put it nicely, to service. School board is considering installing more of them at another site. After today I was considering discouraging more of them. Thought I'd see if it was just me or if anybody else shared my opinion

  2. #2
    Join Date
    Dec 2001
    Location
    Southern Tier, NY
    Posts
    6,066
    i'm not impressed

  3. #3
    Join Date
    Dec 2004
    Location
    Mid-west
    Posts
    567
    I like the Lochinvar Knight better, same basic design but better. Easier to service and more efficient.

  4. #4
    Join Date
    Dec 2001
    Location
    Southern Tier, NY
    Posts
    6,066
    far better choice, the Knight

  5. #5
    Join Date
    Dec 2004
    Location
    Western New York
    Posts
    82
    Have you seen one jump off the floor when it goes to light yet?

  6. #6
    Join Date
    Jun 2006
    Location
    Hastings, MN
    Posts
    417
    The biggest thing is install them right. So many bad installs on them 10' of 1"gas line up to the valve CO2% 8-9 they run a long time. Yearly maintenance a must.
    Aint Notin Sweeter, Then A Brand New Heater!!!!!!!!!!

  7. #7
    Join Date
    Dec 2004
    Location
    Western New York
    Posts
    82
    The Munchkin is engineered on price and poorly designed. Too many nuisance failures with text book installations. Kind of like the Land Rover I have...I will do the customer a favor and spend the extra 500.00 and install an Ultra.

  8. #8
    Join Date
    Dec 2007
    Location
    MA
    Posts
    58
    I've had three service calls for munchkins, all three the plastic impeller on the draft inducer was in about a thousand pieces

  9. #9
    Join Date
    Aug 2007
    Location
    Puget Sound, western wash.
    Posts
    32
    I have serviced quite a few of these. Only problems were from installers giong outside specs. The install guidelines should be reguarded like a bible. Only service problem not related to install was having to adjust firing rate, which you have to use a combustion analyzer, and set up burner Properly. Ilike them, and they are one of the few condensing boilers approved for potable water use.

  10. #10
    Join Date
    Jan 2008
    Location
    Park City, Utah
    Posts
    12
    Ever hear of a problem with using the munchkins with a heat exchanging water heater, where the heating loop fails and adds glycol to the domestic water?

  11. #11
    Join Date
    Aug 2007
    Location
    Puget Sound, western wash.
    Posts
    32
    yes I have had exchanger failures, though not specificaly with munchkins. That's also why we use propalene glychol almost exclusivly. (it's the main ingredent in creme soda).

  12. #12
    Join Date
    Mar 2004
    Location
    Grottoes VA
    Posts
    5,856
    Quote Originally Posted by dsfitzgerald7 View Post
    I've had three service calls for munchkins, all three the plastic impeller on the draft inducer was in about a thousand pieces
    At least the new ones are stainless steel
    Karst means cave. So, I search for caves.

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