ML180UH090XP48B, 80% AFUE, Upflow/Horizontal, Gas Furnace, PSC, 90,000 Btuh, 4 Ton, Low Nox, Merit Series

Merit® Series

ML180 Gas Furnace

Economical, standard-efficiency gas heating

Your customers will enjoy the exceptional comfort that comes with reliable Lennox engineering. The ML180UH070XP36A's durable, high-quality design ensures long-lasting performance. And with an efficiency rating of 80%, it will save them in energy costs, especially compared to an older furnace.

Upflow/Horizontal

• Efficiency rating of 80% AFUE—can save hundreds of dollars each year, compared to older furnaces
• Dual-fuel capability—can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs

• Duralok Plus™ heat exchanger—made of high-quality, patented ArmourTuf™ aluminized steel
• Hot surface igniter—controls furnace operation to ensure reliable, efficient performance

Parts and Supplies

• 51W10 - 604889-01 Horizontal Suspension Kit
• 87L96 - LB-98934B AIR FILTER KIT 18 X 25
• 44J22 - LB-65782C Return Air Filter Kit
• 66K63 - LB-90729C FILTER KIT/10 PACK
• 68W80 - 605927-04 1 STG NIGHT SERV KT AF/Allied
• 18M79 - VENT ADAPTER KIT
• 89W19 - 606270-01 Universal Sw. Kit-Lennox 80%