Product Overview

ULTRA OIL
HIGH EFFICINCY OIL BOILERS
WEIL-MCLAIN LEADS THE INDUSTRY WITH ITS
PREMIUM, SMART, DURABLE OIL BOILER.
With an extensive list of features for both contractors
and homeowners including:
Proven three-pass cast iron heat exchanger with captured
elastomer seals
Pre-wired for an optional fully-integrated control system
that can manage automated applications
Adaptable door design and interchangeable side panels
that can accomodate most installation conditions
Venting options - chimney or direct vent
Burner options - Beckett NX or AFG, Carlin and Riello
All housed in a sleek, innovatively styled jacket with rear
piping and wiring openings, and concealed controls for
an appliance-like appearance.
THREE PASS DESIGN
WEIL-MCLAIN PROVEN TECHNOLOGY
Weil-McLain has been using a three pass design concept
for over 70 years because it provides better flame control,
and more ecient fuel utilization, which reduces heating
costs. The Ultra Oil has incorporated finite element
modeling to enhance overall boiler operation.
Computer designed flueway fins increase the heat transfer surface
area, which extracts more heat and increases eciency without
penalizing boiler back pressure
The wider flueways decrease the negative impact of fouling
An added benefit of the three pass design is the horizontal
configuration, which makes virtually all of the combustion chamber,
turnaround, and flueways visible from the front of the boiler for
easy cleaning and maintenance
Silicone coated fiberglass rope insures a positive seal
Revolutionary rear section design directs the flue gas flow into the
flueways without sacrificing pressure drop through the inner and
the outer flueways which eliminates rear refractory
CAPTURED SEALS-OVER 45 YEARS OF
RELIABLE PERFORMANCE
Boiler sections will expand and contract as they heat
and cool. Our captured seal allows the cast iron to
move while preventing leaks, unlike rigid metal push
nipples. The flexible elastomer sealing rings guarantee
a watertight seal while the precision-machined port
grooves secure them in place, and protect them from
the contaminants of the water.