The Dave Lennox Signature Collection G71P is a high efficiency, variable capacity residential gas furnace that utilizes Precise Comfort™ Technology, automatically adjusting both heat and airflow in increments as fine as 1 percent from 40 percent up to 100 percent of rated capacity. AirFlex™ technology allows the dealer to fine tune every aspect of airflow, including fan-on, cooling sensible balance, heating temperature rise, and cooling blower ramping profiles, to meet a home’s specific comfort needs. The unit can be set up for variable capacity, three-stage or two-stage operation, and every model is multi-positional, maintaining 95 percent AFUE in all installed positions. The multi-position feature is enhanced for the contractor with the company offering one sku for all installed positions, without field reconfiguration. The installer only has to install the trap as appropriate. The unit provides vent lengths of up to 150 feet that allows the furnace to be installed where the best comfort can be delivered.