US-based heating specialist Lennox has unveiled has unveiled a novel heat pump for extreme cold temperatures ... Performance Factor 2 (HSPF2). The new product uses R-454B as the refrigerant ...

Lennox Residential HVAC has launched an extreme cold climate heat pump that warms a house with low global warming potential (GWP) refrigerant in temperatures as low as -20F. It’s called the ...

"This is an industry where it normally takes five years or so to get a product from even thinking ... technology from its most efficient heat pumps. Lennox built its unit to use vapor injection ...

The SL22KLV Cold Climate Heat Pump is now available for order through local Lennox dealers . For more information about the SL22KLV and other industry-leading Lennox products, visit . Lennox (NYSE ...