PEACHTREE CITY, Ga. — Rinnai has introduced a tankless water heater that allows for concentric or twin-pipe PVC venting from the same unit. The new Ultra Series condensing tankless water heater models ...
Denso Corporation has developed a claimed unique double-pipe internal heat exchanger for car air conditioners, increasing cooling performance by up to 12%. The parts maker said it was first to develop ...
Traditional methods of monitoring the integrity of wellbore tubulars have been able to inspect the first few concentric strings of pipe, but not the outer strings. “All the strings should be important ...
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