SmartCycleT is the brain of the system that makes efficiency decisions automatically. By tracking outside temperatures as well as thermostat and usage patterns, SmartCycleT learns how each particular household uses heat and adjusts to its most energy efficient operation.

Where traditional boilers are constantly firing on and shutting down during operation, SmartCycleT modulates the firing rate to take optimum advantage of fuel efficiency. Savings to the customer are similar to the miles per gallon advantage of cruising on the highway as opposed to stop-and-go driving on city streets.

And SmartCycleT constantly monitors every aspect of the Ray system to ensure continuous safe, clean, and remarkably low or no maintenance operation. Smart thinking that benefits both homeowners and contractors.

Ray is the perfect complement for today's open floor plans that are popularizing use of radiant heating systems. A well-designed radiant system requires the most efficient heat source available. Since the cast iron in Ray's heat exchanger retains heat longer than other materials, it provides the smooth, steady, efficient warmth ideal for radiant heat systems. Anyone considering radiant heat should give Ray a close look.

Further optimizing efficiency for radiant systems is SmartCycleT, the brain of the system that learns how to make efficiency decisions automatically. For more information, see the SmartCycleT tab above.

Radiant heat through Ray is not only a clean and energy efficient solution for new construction and remodels, it is also setting the standard for heating driveways and walkways for safe and easy winter passage.

Ray is the perfect complement for today's open floor plans that are popularizing use of radiant heating systems. A well-designed radiant system requires the most efficient heat source available. Cast iron's natural density and the substantive materials used in the Ray heat exchanger enable it to hold and conduct heat with unmatched steadiness and consistency. This makes Ray an excellent choice for anyone considering radiant heat.

Ray is designed to take advantage of each and every energy saving opportunity. Its unique down-fired burner even uses its own hot exhaust gases to provide heat for the home.

The durable cast iron heat exchanger is made from 80% reclaimed material, and is built to last a lifetime, not show up in a landfill. To learn more about how Ray actually becomes more efficient with continued use, see the SmartCycleT tab on this page.

Ray will prove its value every day as well as in the long run. Its low-mass design provides 92% fuel efficiency and its SmartCylcleT computerized control assures long-term savings by optimizing the use of energy according to each household's heating patterns.

Ray's heavy duty, commercial grade cast iron heat exchanger is unmatched for corrosion resistance as well as for its ability to withstand repeated expansion and contraction without fatigue. Its leak-proof graphite port connectors cannot be damaged by water-borne contaminants; whereas metal or synthetic seals can corrode and need to be replaced after time.

Ray's commercial cousin, the KN Boiler, has been operating effectively, efficiently and reliably in commercial applications for years. Now that track record of reliability and fuel savings can be welcomed into the home.