For over 100 years, Lennox has been finding new ways to provide exceptional home comfort. With the Dimension two-stage, high-efficiency gas furnace, Lennox enters a new "dimension" in home heating excellence.

Imagine a furnace so smart that it automatically adjusts the amount of air and level of heat needed within your home based on the weather outside. That's what you get with the Dimension two-stage furnace from Lennox. Standard furnaces have only one level of heat -- high. That's fine on really cold days, but on milder days it's more than is needed.

The Dimension furnace features two levels of heat. Most of the time it operates in the first stage for greater efficiency, but on cold days, it moves to the high-heat second stage to meet the demand. Two-stage heat offers exceptional comfort, efficiency, and much more! Other benefits of two-stage technology include improved air filtration within your home, and extremely quiet operation. Just what you'd expect from the company you trust.

Quality Components

1. DuralokPlus Heat Exchanger -- High quality patented aluminized steel primary heat exchanger and stainless steel secondary heat exchanger provides high-effciency operation and resists corrosion.
2. Reliable Sealed Combustion -- Uses 100% outdoor air, reducing the likelihood of heat exchanger corrosion from chemicals found in indoor air. And no open flame means quieter operation.
3. Two-Speed Combustion Air Blower Motor -- Automatically adjusts to maintain consistent airflow, and reduces temperature fluctuation for greater comfort and improved air filtration.
4. Intelligent Two-Stage Electronic Controls -- Microprocessor monitors and adjusts unit to enhance performance, efficiency and safety.

5. SureLight Electronic Ignition System -- Sturdy igniter design and patented "adaptive technology" control module adjust to ever-changing conditions for safe, reliable operation by providing just enough energy to light the burners without overheating the igniter, thereby extending igniter life.

SureLight Igniter -- Made of Silicon Nitride, a new rugged material that is much stronger than other hot surface igniters.

Indoor Air Quality

Enhanced Air Filtration -- Consistent airflow improves air filtration, reducing pollutants in your home. Air filter design allows easy access to keep furnace in proper operating condition for years to come.

Efficient Design

6. Quiet Operation -- Insulated blower compartment and cabinet, combined with super quiet blowers, help mute sound levels. Two-stage heating greatly reduces noise.
7. Lower Emissions -- Unique design significantly lowers emissions of nitrogen oxides into the atmosphere, and meets California's stringent emission regulations.
Compact Size -- Allows for easy installation in a limited space.

Looks Good Year After Year

8. Durable Steel Cabinet -- Rugged and well insulated cabinet is protected with a durable, high-quality paint process that keeps the cabinet looking good.

SureLight ELECTRONIC Ignition

Go With a Sure Thing
When it comes to safety and reliability, second-best is simply not good enough. That's why Lennox has introduced a new electronic ignition system that is the safest, surest, most intelligent hot surface ignition system available today. The SureLight ignition system features a new igniter that features a tungsten heater element sandwiched between two insulator plates of silicon nitride, making it much stronger and less fragile than previous hot surface igniters. It's smarter, too. The SureLight ignition system features a patented "adaptive technology" control module that determines just how much energy is needed to light the burners without overheating the igniter. That's the kind of performance, innovation, safety and reliability you've come to expect from the company you trust.

Performance When you invest in a furnace, you want a product that will give you many years of reliable service. The Dimension gas furnace has been built with that in mind. By starting on the low-heat first stage and changing to second stage only when needed, two-stage technology eliminates short-cycling. As a result, there is less stress on the furnace, which can lead to fewer service calls and longer equipment life. The Dimension furnace is an effective combination of time-tested components and cutting-edge technology making it a premier product that will provide years of comfort.

Warranties

We build according to internationally recognized ISO 9002 standards.And, we stand behind our products with some of the best warranties in the industry. The 3Dimension gas furnace is backed by a 20-year limited warranty* on the heat exchanger. All other covered components carry a 5-year limited warranty.* That's one more reason to trust Lennox.

*Residential applications only

Efficiency

The durable DuralokPlus heat exchanger, coupled with two-stage technology, enables the Dimension gas furnace to offer high energy efficiency. With up to 94.2% efficiency rating, the Dimension gas furnace can reduce your energy bills when compared to older furnaces. The Dimension gas furnace offers more comfort for every energy dollar you spend, and the additional monthly savings means you'll be comfortable with the return on your investment for years to come.

*94.2%efficient 3Dimension gas furnace vs. 55% and 65% AFUE units. This chart compares the average 3-year savings you an expect from the Dimension furnace versus furnaces with lower efficiency ratings. Costs are based on industry averages for a typical 3-bedroom house in a city with 2,000 heating hours with a 100,000 Btuh load, and $.63ccf for gas. Your actual savings will vary depending on the weather, local fuel rates and your lifestyle.

ENERGY STAR Certification -- Lennox is proud to display the Energy Star logo for this product which means it meets the EPA's standards, by using less energy which reduces pollution.As an EnergyStar Partner, Lennox Industries Inc. has determined that this product meets the EnergyStar guidelines for energy efficiency.

OPTIONAL HOME COMFORT TECHNOLOGY

Thermostats Let You Take Control Of Your Home Comfort
Programmable or setback thermostats can make a big difference in energy consumption and not just in the summertime. Setback thermostats from Lennox are state-of-the-art programmable thermostats that deliver maximum comfort, efficiency and energy savings. They are also easy to program with large slide buttons and easy to understand features. The Dimension two-stage gas furnace can be controlled with a single stage or two-stage thermostat. Ask your Independent Lennox Dealer about programmable thermostats, and get precise energy programming for round-the-clock savings and comfort.