Burnham IN4PVNI-M2, Independence PV, 105 Input MBtu, 82% AFUE, Less Trim, Electronic Ignition, Natural Gas Steam Boiler, Power Vent

• Up 82% AFUE
• 62 – 382 MBH (10 sizes)
• Natural or LP gas on selected models (chimney vented)
• Electronic ignition (sizes 3-9)
• American-made cast iron sections
• Stainless steel burners
• Step-opening gas valve provides smooth & quiet start-up
• Industrial-quality pressure limit control

Standard Equipment

(Semi Pack & K/D):

• Section assembly
• Insulated deluxe jacket
• Base-burner manifold assy.
• Flame roll-out switch (FRS)
• Gas control assembly
• Canopy
• Rear drafthood (sizes 3-9 only)
• Blocked vent switch
• Vent damper

Packaged Boilers add:

• Pressure limit
• 24V transformer
• Probe type LWCO
• Junction box
• Thermostat isolating relay
• Electronic ignition assembly
• 15 PSI safety valve
• Steam gauge
• Gauge glass
• 3/4” drain valve
• Wiring harness

PV Boilers add (in lieu of chimney venting equipment):

• Induced draft fan
• Suction pressure switch
• Thermostat blower relay
• Vent accessory carton: vent connector with locking band, vent terminal, clamp
• 3 oz. tube, silicone sealant

The right boiler for the job

Many American homes have existing steam heating systems which require the use of a devoted steam boiler. The Independence steam boiler has the same reputation for long lasting quality and efficiency as our other cast iron gas boilers. When a home’s heating system requires the use of a steam boiler, the efficient, proven, and reliable Independence is the best choice for the job.

With or without a chimney

The standard Independence is used for chimney installations and features a fuel-saving vent damper which automatically closes when the boiler is idle. The Independence PV can be used in homes without a chimney, and is equipped with a draft-inducing fan which pulls hot gases through the heat exchanger at the optimum speed for efficiency.

The “heart” of the matter

A cast iron heat exchanger is at the heart of every Indepenence boiler. Crafted at a foundry in Zanesville, Ohio it is comprised of 100% recycled material and designed for years of reliable home comfort. Each cast iron heat exchanger is water and pressure tested prior to assembly in the finished boiler.

Built to last, made in America

When it comes to home heating, every BTU is precious. U.S. Boiler Company understands, and takes energy efficiency seriously. From thick insulated plates and seamless corners in the burner base to the insulated steel jacket, the Independence is designed to keep heat where it belongs...in the heating system. Independence boilers are built in Lancaster, PA. Every component is subject to strict standards of quality control and performance verification which are used throughout the manufacturing process.