EL18KSLV-024-230
About The Lennox EL280DF070E36AK
Description
The Lennox EL280DF070E36AK is an Elite Series two-stage gas furnace rated 66,000 BTU input and 52,000 BTU output on high fire at 80% AFUE. It comes in a 14.5-inch A cabinet, installs downflow, and has a constant torque blower sized for 1.5 to 3.5 tons of add-on cooling.
Key specs
- Heating: 66,000 BTU input, 52,000 BTU output, 80% AFUE, two-stage, 43,000 BTU input on low fire
- Cabinet: A size, 14.5 inches wide, downflow
- Blower: 1/2 hp constant torque motor, 400 to 1,475 cfm, for 1.5 to 3.5 tons of cooling
- Temperature rise: 30 to 60°F on high fire, 20 to 50°F on low fire
Reading the model number
EL is Lennox's Elite line, 2 means two-stage, 80 is the AFUE, and DF is downflow. 070 is the 66,000 BTU input, E is the high efficiency constant torque 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
Downflow coils with the same letter match the furnace's supply air opening, so you want a Lennox CK40DT coil with A in its size code.
The AHRI Directory lists this furnace in certified systems with CK40DT coils and Lennox ML13KC1 air conditioners, plus EL18KSLV 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 and San Joaquin Valley 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
Free shipping on major equipment from our Kansas City warehouse to every state and D.C. except Alaska, Hawaii, Washington, Oregon, and Idaho, where you pay the shipping rate shown at checkout. 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 EL280DF070E36AK 80% AFUE 66,000 BTU 14.5" Two-Stage Downflow Gas Furnace
AHRI-matched equipment that works with this unit. Add a full system or individual pieces.
Filter matches
Coil
ML13KC1-030-230
AHRI number 218189009
EL18KSLV-024-230
AHRI number 218400105
EL18KSLV-024-230
AHRI number 218389298
EL18KSLV-024-230
AHRI number 218387546
No AHRI-matched systems for this filter.
Specifications
| Specification | Value |
|---|---|
| Manufacturer | Lennox |
| SKU | EL280DF070E36AK |
| Product type | Furnace |
| Furnace width | 14.5" |
| Input (BTU/h) | 66,000 |
| AFUE (%) | 80 |
| Voltage | 120 |
| Phase | 1 |
| Frequency (Hz) | 60 |
| Electrical | 120-1-60 |
| Shipping weight (lb) | 123 |
| Stages | Two |
| Cabinet width (in) | 14.5 |
| Output (BTU/h) | 52,000 |
| Cabinet size letter | A |
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. |




