Brochure

Inspired by nature
Nanotechnology was created to mimic the
lotus eect, preventing water condensate
build-up. Like that of the lotus leaf, the
nanotechnology coating repels exhaust
residue formation on the heat exchanger
surface and prevents acidic condensate
penetration.
In addition, Ultra Series 4 has an advanced
condensate management system that
incorporates polypropylene piping
to further reduce the impact of
condensate.
Clean-free for at least 5 years*
Thanks to our nano-coated heat exchanger,
the Ultra Series 4 requires no cleaning for
a full five years after installation. When it’s
time to clean, a simple rinsing of the coated
heat exchanger with water does the trick.
Great for residential and light commercial
The Ultra Series 4 is an ideal choice for
single-family residential applications.
Homeowners will appreciate its quiet
operation, ease of set up and control,
and unmatched comfort while providing
immediate payback in energy savings.
For light commercial applications, the Ultra
Series 4 lets contractors pair boilers in
sequence to heat larger buildings. And, it
allows you to control multiple boilers from a
single control panel.
Weil-McLain takes condensing boiler
technology to a higher level of performance.
The Ultra Series 4 features a state-of-the-art
heat exchanger with nanotechnology coating
that works like "Ultra Armor", reducing build
up in the heat exchanger while maintaining
high eciency.
* Typical installations, field conditions may vary.
Heating perfection and long-term protection
§ Every Ultra boiler is hydrostatically tested to
ASME standards and test fired
§ Backed by Weil-McLain quality and a warranty
that provides peace of mind
§ Unrivaled technical and product support
§ From North America's leading boiler
manufacturer with over 140 years of proud history