DuPont Polymers in New Tankless Water Heaters Help Homeowners Meet New Regulations

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Seisco Introduces Innovative Solutions for Single-Family Homes and Multi-Family Constructions

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Thousands of gallons of water are wasted each year waiting for hot water to travel through cold pipes. Heating at the use point can significantly reduce water waste and save energy.

Seisco International is introducing the next generation Supercharger tankless water heater unit, which uses DuPont engineering polymers in several components. The units can help homeowners meet National Appliance Energy Conservation Act (NAECA) requirements, which were updated in April.

The new standards, according to Seisco President David Seitz, could drive up the cost and size of tank-type water heaters because efficiency technology will have to be added to tanks that are 55-gallon or larger. “A Seisco Supercharger coupled with a 40-gallon tank matches the performance of a 60 to 80 gallon tank with significantly lower energy use because you heat less water all day,” he said.

The unit, at 15 inches by 7 inches by 6 inches, is small enough to be placed near the use point. “Thousands of gallons of water are wasted each year waiting for hot water to travel through cold pipes,” he said. “Heating at the use point can significantly reduce water waste and save energy.” Click here to read more about the new unit.

The new tankless water heaters feature an internal heating chamber, which is injection molded of DuPont™ Zytel® nylon for high heat resistance, thermal stability and compliance with NSF and UL requirements. DuPont™ Crastin® PBT thermoplastic polyester delivers impact resistance and compliance with UL flammability requirements in a one-piece protective exterior housing.

A microprocessor control manages on/off when flow starts/stops. The water heater’s patented mixing chamber provides a small amount of heated water and the patented “Power-Sharing” technology helps ensure elements heat evenly. These innovations help protect against scalding, scaling and sediment build-up.

The single-chamber Seisco models can be used as a back-up for both new and existing hot water storage tanks in single-family homes. Multifamily water heaters allow building owners to eliminate storage tanks in each unit. More information is available at

DuPont Performance Polymers works with customers throughout the world to help improve the performance, sustainability and cost of components used in automotive, aerospace, consumer electronics, health care, medical and other diversified industries. DuPont supports product development efforts with more than 40 manufacturing, development and research centers and technical teams to help ensure ideas can go to market quickly and cost effectively.

DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment. For additional information about DuPont and its commitment to inclusive innovation, please visit

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The DuPont Oval Logo, DuPont™, Crastin® and Zytel® are registered trademarks or trademarks of DuPont or its affiliates.

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Carole Davies
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