Independent gas, electric, oil, and high-efficiency furnace researchExplore the installer directory
Furnace System GuideFind a Local Pro

Brand review template

Lennox

Lennox documents the SLP99V as a variable-capacity, modulating gas furnace with a variable-speed blower and AFUE up to 99, part of the Dave Lennox Signature Collection.

Lennox publishes a product page for its SLP99V gas furnace within the Dave Lennox Signature Collection. This entry records what that page states about the furnace's efficiency, modulation, blower motor, and warranty options.

SLP99V efficiency, capacity, and blower

Lennox's SLP99V product page states the furnace reaches up to 99 AFUE. Lennox describes the SLP99V as a variable-capacity furnace.

Lennox's page characterizes the operation as modulating, meaning the furnace matches output to demand rather than running in fixed stages. The same page lists a variable-speed blower motor. Lennox positions the SLP99V within its Dave Lennox Signature Collection.

Warranty terms as documented

Lennox's SLP99V page states the heat exchanger carries either a 20-year or a lifetime limited warranty, depending on the coverage option. The page states covered components on Dave Lennox Signature Collection models carry a 10-year limited warranty.

These terms are recorded as written on Lennox's product page. The heat exchanger figure and the parts figure are presented as separate coverage lines.