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(PEACHTREE CITY, Ga. - June 15, 2010) - ÿ�մ������ Corporation, manufacturer of the No. 1 selling brand of tankless gas water heaters in North America, has extended the heat exchanger warranty on RC98HPe, RC98HPi, RC80HPe and RC80HPi condensing tankless water heaters used in recirculating applications from three years to 12 years. The new warranty pertains to recirculating systems that are controlled through an aquastat/thermostat, a timer or an on-demand system. The change means that ÿ�մ������® brand condensing tankless products used in qualified recirculating systems will now feature the same 12-year heat exchanger warranty as all residential installations.

“We originally implemented a reduced heat exchanger warranty on condensing units in recirculating systems due to the accelerated wear that results from use with a constantly running circulation loop,” said Joe Holliday, ÿ�մ������’s director of product management. “However, we realize that advances in some recirculating systems have eliminated the need for constant recirculation. This, along with advances in the strength and durability of our heat exchanger design, allows us to offer the same warranty as traditional residential installations.”

The warranty change is effective immediately on all new ÿ�մ������ brand condensing tankless unit installations with qualified recirculation systems and is not retroactive. For more information about ÿ�մ������, visit www.rinnai.us.