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Lennox Debuts Space-Saving Side Discharge Heat Pump for Compact Homes
EL18KSLV Model Delivers High Efficiency in Tight Spaces with R-454B Refrigerant
Alan Zhu
July 03, 2025
HVAC leader Lennox has introduced its innovative EL18KSLV Side Discharge Heat Pump, designed specifically for homes with limited outdoor space. This sleek, high-performance system combines top-tier efficiency with a compact footprint, making it ideal for urban residences and narrow-lot properties.
Key Features & Specifications
🏆 Performance Highlights
✔ Efficiency Ratings: Up to 19 SEER2 & 10 HSPF2
✔ Refrigerant: R-454B (low global warming potential)
✔ Variable-Capacity Operation: Adjusts output for optimal comfort & energy savings
✔ Quiet Operation: 54–60 dB (comparable to a dishwasher)
📏 Space-Saving Design
Side discharge airflow eliminates need for rear clearance
Ideal for:
Zero-lot-line homes
Urban backyards
Properties with strict zoning rules
❄️ Heating & Cooling Capacity
Model Size | Cooling (Btuh) | Heating (Btuh) |
|---|---|---|
2-ton | 22,000 | 23,600 |
5-ton | 56,000 | 56,000 |
(Note: "Tons" refers to thermal capacity, not weight)
🔧 Warranty & Reliability
10-year limited compressor warranty
5-year parts warranty (extendable to 10 years with registration)
Why Choose This Heat Pump?
1. Perfect for Tight Spaces
Traditional heat pumps require significant clearance—Lennox’s side-discharge design solves this problem without sacrificing performance.
2. Future-Proof Refrigerant
R-454B meets upcoming EPA regulations, ensuring compliance as phasedowns of high-GWP refrigerants progress.
3. Energy Bill Savings
With 19 SEER2 efficiency, this system can significantly reduce electricity costs compared to older HVAC units.
4. Smart Comfort
Variable-speed technology eliminates temperature swings while minimizing energy waste.
Who Should Consider It?
🏙️ Urban homeowners with limited outdoor space
🏡 Eco-conscious households transitioning from gas furnaces
💰 Budget-aware buyers seeking long-term savings
Final Verdict
Lennox’s EL18KSLV redefines what’s possible for compact home HVAC, delivering big performance in a small package. As heat pump adoption grows, innovations like side-discharge designs will become crucial for dense neighborhoods.
Would this heat pump work for your home? Let us know in the comments!
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