Lennox ML180UH045V36AK 80% AFUE 44,000 BTU 14.5" Wide Furnace

Lennox ML180UH045V36AK 80% AFUE 44,000 BTU 14.5" Wide Furnace

SKU:ML180UH045V36AK

In stock

Merit single-stage gas furnace: 44,000 BTU input at 80% AFUE in a 14.5-inch A cabinet that fits A-size Lennox coils. Call (913) 364-0070 to confirm your match.

  • Fast shipping
  • Expert phone help
  • Manufacturer warranty
  • AHRI-matched pairings
  • Licensed contractor install required for warranty
Regular price $1,494.03
Sale price $1,494.03 Regular price
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About The Lennox ML180UH045V36AK

The Lennox ML180UH045V36AK is a Merit Series single-stage gas furnace rated 44,000 BTU input and 36,000 BTU output at 80% AFUE. It comes in a 14.5-inch A cabinet, installs upflow or horizontal, and has a variable speed blower sized for 1.5 to 3 tons of add-on cooling.

Key specs

  • Heating: 44,000 BTU input, 36,000 BTU output, 80% AFUE, single-stage
  • Cabinet: A size, 14.5 inches wide, upflow or horizontal (left or right)
  • Blower: 1/2 hp variable speed motor, 380 to 1,320 cfm, for 1.5 to 3 tons of cooling
  • Temperature rise: 15 to 45°F

Reading the model number

ML is Lennox's Merit line, 1 means single-stage, 80 is the AFUE, and UH is upflow/horizontal. 045 is the 44,000 BTU input, V is the variable speed blower motor, 36 is the nominal add-on cooling size, A is the 14.5-inch cabinet, and K means the furnace is ready for Lennox refrigerant detection.

What it pairs with

Coils with the same letter physically match the furnace, so you want a Lennox coil with A in its size code, such as a CK40CT, CK40HT, or CK40UT.

The AHRI Directory lists this furnace in certified systems with CK40CT, CK40HT, and CK40UT coils and Lennox EL15KC1, EL16KC1, EL18KCV, EL22KCV, ML13KC1, ML14KC1, and ML17KC2 air conditioners, plus EL16KP1, EL18KSLV, EL19KPV, EL21KLV, and ML14KP1 heat pumps. Your efficiency rating depends on the exact outdoor unit, coil, and furnace together.

Sizing and fit

Size the furnace from a Manual J load calculation. Filters and filter mounting aren't included, so plan for a filter rack.

This model doesn't carry the X low NOx code, and Lennox says this furnace series can't go in the South Coast, San Joaquin Valley, and Bay Area air districts. It isn't certified for mobile homes, RVs, or outdoor installs.

Warranty and registration

HVAC USA is an authorized Lennox reseller, and everything we sell is new factory equipment. Your full Lennox warranty applies when a licensed, manufacturer-certified contractor installs your system and registers it within 60 days.

Shipping and help

It ships from our Kansas City warehouse. Call (913) 364-0070, Monday to Friday, 9am to 5pm CST, and we'll help you confirm sizing and an AHRI-matched pairing before you order.

Paired With — AHRI-matched systems for Lennox ML180UH045V36AK 80% AFUE 44,000 BTU 14.5" Wide Furnace

AHRI-matched equipment that works with this unit. Add a full system or individual pieces.

Filter matches

Specifications

Specifications
Specification Value
Manufacturer Lennox
SKU ML180UH045V36AK
Product type Furnace
Furnace width 14.5"
Input (BTU/h) 44,000
AFUE (%) 80
Voltage 120
Phase 1
Frequency (Hz) 60
Electrical 120-1-60
Height (in) 33
Depth (in) 27.75
Shipping weight (lb) 111
Stages Single
Cabinet width (in) 14.5
Output (BTU/h) 36,000
Vent connection 4 in. round flue connection
Cabinet size letter A

Ordering

Ordering
Detail Value
Lead time Ships from our Kansas City warehouse. Most in-stock items leave in 1 to 3 business days; special-order equipment is confirmed by phone before ship.
Freight note Ships residential freight (curbside). Will-call available at our Kansas City warehouse. Call (913) 364-0070 for liftgate, scheduling, or commercial delivery.