The Luxaire LP9C is a top-of-the-line gas furnace with 98 percent efficiency. This Acclimate series furnace is available in four capacity models with a variable-speed blower motor, ranging from 60,000 BTU to 120,000 BTU. Prices range from $2,449 to $3,329 as of 2015.
Luxaire also manufactures the LX TM9M gas furnace, a member of its second-tier product line. The TM9M is also energy efficient at 97 percent and comes equipped with a variable-speed motor. The LX series is also available in four different capacities, ranging from 60,000 BTU to 120,000 BTU. Prices range from $2,349 to $2,999. For consumers on a budget, Luxaire offers its Climasure gas furnace series with single-stage heating. The Climasure TG9S is an energy efficient model at 95.5 percent efficiency, but it has a maximum price tag of $2,000. Starting at $1,189, the Climasure TG9S is available in five different capacities, ranging from 40,000 BTU to 130,000 BTU.