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Pensotti WB 3-pass oil boiler

vaporvac Member Posts: 1,520
I posted this on the general ?s page, but it was suggested i may get more answers if I post here...

July 21, 2012

@ 11:31 PM

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Pensotti wb 3 pass boiler

My dad in Maine is looking to replace his Burnham boiler with a Pensotti

quadritech series #DK2-4 oil.  I haven't found anything referenced on

this website about this brand.  I'd like to hear some opinions on this

and perhaps some alternate brand choices.  He will be installing this

himself with a bit of help as he did with his prior system.  I'm

suggesting a Triangle Tube, but don't know if that is comparable. He's

looking to heat his dhw with it and is looking for direct vent with 

high efficiency.  The indirect WH is made by Heat-Flo in Ma. The control

is a Honeywell L-4080b aquastat. I can't really get a fix on either.

Any and all help would be appreciated.  I want to make sure this is the

best decision for his circumstances. He's using Taco pumps.

Thanks for all the help you've given to me in the past.

Two-pipe Trane vaporvacuum system; 1466 edr
Twinned, staged Slantfin TR50s piped into 4" header with Riello G400 burners; 240K lead, 200K lag Btus. Controlled by Taco Relay and Honeywell RTH6580WF


  • Steamhead
    Steamhead Member Posts: 16,899
    Try this link:


    Looks similar to most 3-pass boilers- AFUE numbers aren't bad. 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • Kevin_31
    Kevin_31 Member Posts: 17
    Happy with my DK2-4

    I installed my Pensotti DK2-4 approximately 18 months ago.  The only "gripe" I have is the combustion noise. I spoke to the Manufacturer about this and they sent me a different nozzle.  I installed it but did not notice any difference.  Nevertheless, I would still recommend it.


    Long Island, NY
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