EL21KLV-024-230
Lennox SL280DF090V48B 80% AFUE 88,000 BTU 17.5" Variable-Speed Downflow Gas Furnace
Lennox SL280DF090V48B 80% AFUE 88,000 BTU 17.5" Variable-Speed Downflow Gas Furnace
SKU:SL280DF090V48B
In stock
Dave Lennox Signature two-stage gas furnace: 88,000 BTU input at 80% AFUE in a 17.5-inch B cabinet that fits B-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
$3,238.81
Sale price
$3,238.81
Regular price
Free shipping
Ships free 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. For Puerto Rico, other U.S. territories, or areas that need ferry or air freight, call (913) 364-0070 for a quote.
Shipping calculated at checkout.
Free shipping
Ships free 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. For Puerto Rico, other U.S. territories, or areas that need ferry or air freight, call (913) 364-0070 for a quote.
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Shipping policy
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. If your cart has a qualifying item, your whole order ships free. Most orders ship 2–5 business days; delivery 2–10 days. Small packages UPS/FedEx; large HVAC = LTL curbside + liftgate typical. Signature/appointment for freight; inspect before signing. Call (913) 364-0070 for help.
Returns and refunds
30-day return window from receipt; unused/original packaging + proof of purchase. Start return via info@hvacusa.store or (913) 364-0070 before shipping back to 9411 N Tracy Ave, Kansas City, MO 64155. Sale items/gift cards/custom not returnable. Approved refunds to original payment within ~10 business days after inspection.
About The Lennox SL280DF090V48B
Description
The Lennox SL280DF090V48B is a Dave Lennox Signature Collection two-stage gas furnace rated 88,000 BTU input and 69,000 BTU output on high fire at 80% AFUE. It comes in a 17.5-inch B cabinet, installs downflow, and has a variable speed blower sized for 3 to 4 tons of add-on cooling.
Key specs
- Heating: 88,000 BTU input, 69,000 BTU output, 80% AFUE, two-stage, 57,000 BTU input on low fire
- Cabinet: B size, 17.5 inches wide, downflow
- Blower: 1 hp variable speed motor, 830 to 1,996 cfm, for 3 to 4 tons of cooling
- Temperature rise: 35 to 65°F on high fire, 25 to 55°F on low fire
Reading the model number
SL is the Dave Lennox Signature Collection, 2 means two-stage, 80 is the AFUE, and DF is downflow. 090 is the 88,000 BTU input, V is the variable speed blower motor, 48 is the nominal add-on cooling size, and B is the 17.5-inch cabinet.
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 B in its size code.
The AHRI Directory lists this furnace in certified systems with CK40DT 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 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 SL280DF090V48B 80% AFUE 88,000 BTU 17.5" Variable-Speed Downflow Gas Furnace
AHRI-matched equipment that works with this unit. Add a full system or individual pieces.
Filter matches
Coil
EL22KCV-036-230
AHRI number 217886211
EL22KCV-036-230
AHRI number 217886222
EL21KLV-036-230
AHRI number 217443263
EL22KCV-024-230
AHRI number 217885553
EL22KCV-024-230
AHRI number 217885546
EL22KCV-036-230
AHRI number 217886209
EL22KCV-048-230
AHRI number 217886532
EL18KSLV-036-230
AHRI number 217509778
EL19KPV-036-230
AHRI number 217194424
EL18KCV-036-230
AHRI number 217884243
EL18KCV-036-230
AHRI number 217884118
EL18KSLV-036-230
AHRI number 218114523
EL18KSLV-036-230
AHRI number 217509777
EL18KSLV-060-230
AHRI number 217450039
ML17KC2-024-230
AHRI number 216049002
EL19KPV-036-230
AHRI number 217447048
EL18KCV-024-230
AHRI number 217883500
EL18KCV-024-230
AHRI number 217883494
EL18KCV-048-230
AHRI number 217884814
No AHRI-matched systems for this filter.
Specifications
| Specification | Value |
|---|---|
| Manufacturer | Lennox |
| SKU | SL280DF090V48B |
| Product type | Furnace |
| Furnace width | 17.5" |
| Input (BTU/h) | 88,000 |
| AFUE (%) | 80 |
| Voltage | 120 |
| Phase | 1 |
| Frequency (Hz) | 60 |
| Electrical | 120-1-60 |
| Shipping weight (lb) | 153 |
| Stages | Two |
| Cabinet width (in) | 17.5 |
| Output (BTU/h) | 69,000 |
| Low-fire output (BTU/h) | 46,000 |
| Vent connection | 4 in. round flue connection |
| Cabinet size letter | B |
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. |