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Lochinvar Knight Hex ??

StekayStekay Member Posts: 36
Does the KBN still have the Gianonni water tube hex and only the WH has the firetube hex?

Also, does anyone have a recommendation for an installer in Western Suffolk county for TT Prestige or the WH? Hopefully someone invested in and who knows how to use a combustion analyzer. Thanks in advance


  • Steve WhitbeckSteve Whitbeck Member Posts: 669

    The WHN has the new ( and better ) fire tube heat exchanger.

    The KBN has the water tube design.
  • StekayStekay Member Posts: 36
    Contractor Western Suffolk

    Thanks Steve. I've checked "Find a Contractor", but none in my area do residential gas, so I need a recommendation for someone technically familiar with the Triangle Prestige Solo or Lochinvar WHN and their Smart System.
  • Steve WhitbeckSteve Whitbeck Member Posts: 669

    Wish I could help but I am in West Michigan.

  • StekayStekay Member Posts: 36
    Contractor Experience

    The first quote I got from a contractor recommended from the distributor, I was asked if I wanted the floor or wall model. I said the wall model because of the hex design (which I had learned here), he insisted they were both identical. I said what you confirmed about fire tube vs water tube. "Nope they're both identical, I've been installing Lochinvar for 30 yrs". Then w/o even looking at the size of the existing boiler (96K btu) "I'll put you down for the 155k."

    I said this is only a 96k, he replied it'll modulate down.

    Like buying a car, this is the most frustrating part of a new boiler. I just want a great install of a solid piece of equipment.
  • ZmanZman Member Posts: 3,478

    I have never heard of sizing boilers that way. You should really have a heat loss done ( or do one yourself) if your existing boiler is sized correctly you will need the 85k because you derate the less for efficiencys . That is a big if. Have a heat loss done

    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • Robert O'BrienRobert O'Brien Member Posts: 2,931

    We can help out with that,we're in Port Jeff
    To learn more about this professional, click here to visit their ad in Find A Contractor.
  • StekayStekay Member Posts: 36
    Heat Loss Calc

    I did do one myself using an online calculator and conservatively got 99K btu. I currently have a Dunkirk Quantum Leap 95 condensing boiler which is failing (leaking from a crack) after a lifetime of issues. I'm looking for someone to come for an estimate and do what you guys say: "OK first thing I need to do is a room by room heat loss calculation". Then be familiar with the TT or WHN so the piping, pump sizing, etc. are as it was designed to be for that unit. It seems that's asking a lot these days.
  • Robert O'BrienRobert O'Brien Member Posts: 2,931

    No way is it 99K
    To learn more about this professional, click here to visit their ad in Find A Contractor.
  • Jeff WJeff W Member Posts: 55
    WB vs. WH

    There are still 2 types of wall-hung boilers. The wall-mount (WB) has the Giannoni. The wall-hung (WH) has the fire tube.
  • StekayStekay Member Posts: 36
    You're Right

    Rob, you're correct. It was a boiler sizing calculator, not a heat loss calculator. My mistake.

    But I still need a recommendation for an installer.
  • Aaron_in_MaineAaron_in_Maine Member Posts: 313
    Call Technical Heating

    Call Technical Heating Long Island. Mr O'Brien won't steer you wrong.
    Aaron Hamilton Heating
    [email protected]
  • StekayStekay Member Posts: 36
    Thank You

    Thanks Aaron, I'll call him today
  • StekayStekay Member Posts: 36

    Got a call back and same day appointment with Robert. He not only answered my questions but did a good job of explaining theory and why. I have an appointment for install (TT Prestige Solo 60) next Friday. I'll update after I live with it awhile.

    Thanks again. -Steve
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