Environmental Innovation

At Lennox, innovation takes many forms. And one of the most critical is setting the standard for minimizing environmental impact across the world of HVAC—from high-efficiency products to earning green accreditations to implementing sustainable production initiatives.

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Before we begin, here's a look at some key energy efficiency terms and concepts.

Glossary of Terms


Stands for Seasonal Energy Efficiency Ratio and is the efficiency rating for air conditioners and heat pumps. The higher the SEER rating, the more efficient the air conditioner or heat pump.

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Stands for Annual Fuel Utilization Efficiency and is a percentage that represents gas furnace efficiency. The higher the AFUE rating, the more efficient the furnace as less energy is wasted.

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Stands for Heating Seasonal Performance Factor (HSPF) and is a rating similar to SEER that solely measures the efficiency of the heating portion of heat pumps.

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The EPA-backed organization that recognizes companies and products for delivering cost-saving, energy-efficiency solutions that improve air quality and protect the climate.

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Matched Systems

Simply put, matched systems are complete HVAC systems consisting of individually efficient products that realize even greater efficiency when paired together.

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Products That Pave a Greener Way

Years ago, we made our mark on the heating and cooling industry by creating the world's first air conditioner rated at more than 20.5 SEER. Today, we produce the most efficient gas furnace on the market. Basically, green innovation has been, is, and will always be one of the greater purposes that drive us.

Here are some recent innovations and recognitions to further prove our point.

Ultra-low NOx Furnaces
Along with the state of California, we're leading the way with low-NOx initiatives and solutions. These NOx, or Nitrogen Oxide, emissions from gas furnaces produce ground-level ozone, which impacts the environment and your health. And we're proud to say that Lennox is the first and only company to provide a full line of ultra-low emission furnaces. Learn more about our ultra-low emissions furnaces.

PureAir S
The ultimate in safe, healthy, whole-home air purification. Because, unlike every other purification system, the PureAir S not only produces zero lung-irritating ozone, it even converts existing ozone found in the home into clean, healthy oxygen.

Industry-Wide Recognition

Year after year, leading institutions choose to award Lennox for its industry-defining initiatives in the heating and cooling industry. One of the most significant of those is being a four-time recipient of the ENERGY STAR® Manufacturing Partner of the Year award.

Here are some other notable green-focused certifications and awards.

Logo for Energy star most efficient

These products meet rigorous performance levels to deliver exceptional efficiency and comfort with minimal energy use.

Logo for Green builder sustainability awards

Designed to recognize a product, technology, or material that has contributed to enhancing the sustainability of the built environment.

Logo for Green seal certified

Given to products for meeting or exceeding leadership-level, life-cycle-based criteria for sustainability.

Logo for Green builder hot50 products

An annual selection of the most innovative, creative and all-around sustainable products available to the building market.

Thermostat Recycling

Our facilities actively seek out ways to reduce hazardous materials, energy use, and harmful emissions. Among those initiatives have been our thermostat recycling programs in the United States and Canada. Older thermostats contain mercury that, if not properly disposed of, can be harmful to the environment. But through collective efforts like these, we are making a difference.

In the United States, we've partnered with the Thermostat Recycling Corporation to collect and properly dispose of thousands of thermostats by placing collection containers at all of our distribution centers. To find a location near you, visit thermostat-recycle.org or use the store locator on our Lennox Stores page.

In Canada, we participate in the Canadian Thermostat Recovery Program, which is administered by the Heating Refrigeration and Air Conditioning Institute of Canada (HRAI). To locate a collection site in your area, visit the Canadian Thermostat Recycling Program.

Even Greener Together

We recognize that we can play an even greater environmental role by working closely with those in our industry. Through various partnerships with regional utility companies and the thousands of committed Lennox Dealers across North America we're ensuring greener days ahead. Beyond that, we're also closely involved with industry coalitions that create, promote, and foster environmentally responsible practices.

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