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Knight or Noble?

I'm just trying to plan ahead. My 80k Knight was new in 2007 if I remember correctly and still works just fine. I do the annual maintenance on it. (takes about 2 hours to do it correctly). I have fin tube emitters and a max temp of 175 for a design temp of -20 here in Minnesota with indoor target of 75 degrees. There are 3 zones. There is also a Bradford White indirect.

That said, do you have any preference between the Knight and the Noble (not combi)?

I always appreciate everyone's opinion.


  • pedmec
    pedmec Member Posts: 994
    Both are good products but the knight boiler is asme rated which means that by definition its a more rugged boiler (welded seams compared to gasket-ed construction). That explains the price difference. We have done a lot of lochinvar boilers and have had good luck with all there product lines. Haven't done a lot of nobles but haven't heard anything bad about them. I'm going to be putting in a noble combi in my house as i like the price lol. When the hot water heat exchanger fails i'll just install an indirect. They have good tech support and parts in my area so that's a big plus.
  • Dave Carpentier
    Dave Carpentier Member Posts: 604
    I wonder how the Epic model compares (Canada only ?)
    Lochinvar presents it as sort of an entry-level unit.
    Stainless fire tube, 10yr on the hex (compared to 15 for the Knight).
    I dont see the Noble in the Canadian sales literature, so maybe the Epic is the Canadian variant ?
    30+ yrs in telecom outside plant.
    Currently in building maintenance.
  • Tinman
    Tinman Member Posts: 2,808
    I prefer the Knight by a long shot using an indirect. The control has always stood out in my opinion. I’ve installed and serviced so many of them without any problems other than the typical things like sensors and igniters. And I usually would replace those before they actually fail. Mine is installed in our garage which I’ve turned into a woodworking shop and I never hear the thing firing. The only noise I ever hear related to the heating system is the condensate pump. 
    Steve Minnich
  • gerry gill
    gerry gill Member Posts: 3,078
    I’m a fan of the Knight. It has caused me the least headaches when I venture out into the mod con side of life.
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • hot_rod
    hot_rod Member Posts: 22,394
    A lot more control features on the Knight lots of adjustability.
    I think the Nobel uses the Korean built Kiturami heat exchanger, perhaps a notch down from the Knight. I don’t think Conxus online ap connects to the Nobel?
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Larry (from OSHA)
    Larry (from OSHA) Member Posts: 717
    Thanks for all the info. Hot rod, I did not realize that the heat exchanger is different between the models. Very good to know.