312AAV:

Energy Efficiency Up to 80% AFUE

Warranty 10-year parts and 20-year heat exchanger limited warranty upon registration

312AAV:

Energy Efficiency Up to 80% AFUE, Lo Nox

Warranty 10-year parts and 20-year heat exchanger limited warranty upon registration

Controls Supported Thermidistat™, Thermostat

Diagnostics Over 70 parameters via PDA or laptop

Energy Efficiency

Quiet Level

Durability

Capacity 66,000 - 154,000 BTUH

Blower Motor Two speed

Primary Heat Exchanger Serpentuff™ polypropylene-coated

Fuel Natural gas, convertible to liquid propane (LP)

* Energy efficiency-Up to 80% AFUE

* Perfect Heat™ technology

* Fan On Plus™ technology

* QuieTech™ noise reduction system

* Pilot-free PerfectLight™ ignition

* High efficiency air filtration cabinet

* 10-year parts and 20-year heat exchanger limited warranty upon registration (312AAV)

* 10-year parts and 20-year heat exchanger limited warranty upon registration (312JAV)

Profile Two-stage, 4-way multipoise

Construction Galvanized steel

Paint Baked on urethane base coat and polyester top coat