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Trane

Trane documents the S9V2 as a two-stage, variable-speed gas furnace rated up to 96 percent AFUE, backed by a lifetime registered heat exchanger warranty.

Trane publishes a product brochure for its S9V2 gas furnace. This entry records what that brochure states about the furnace's efficiency, staging, blower motor, heat exchanger construction, and registered warranty coverage.

S9V2 efficiency, staging, and blower

Trane's S9V2 brochure states the furnace carries a gas efficiency rating (AFUE) of up to 96 percent. Trane describes the S9V2 as a 34-inch tall gas furnace.

The brochure lists a two-stage gas valve that adjusts fuel use based on heating demand. It also lists a variable-speed blower motor with Comfort-R. Trane's document describes a stainless steel primary heat exchanger and a secondary heat exchanger made of corrosion-resistant 29-4C stainless steel.

Warranty coverage as documented

Trane's S9V2 brochure states that all S9V2 gas furnaces carry a Lifetime Registered Limited Warranty on the heat exchanger. The same brochure states a 10-year Registered Limited Warranty on internal functional parts for residential use.

Trane's brochure also states that its heat exchanger testing runs 25,000 cycles, against an industry minimum testing requirement it cites as 10,000 cycles. Both warranty terms are conditioned on registration as written in the document.