The underlying energy-efficiency potential of heat pump technology creates a high potential to save energy in the domestic water heating segment. Caleffi North America, a manufacturer of engineered solutions for hydronic and plumbing systems and committed to providing Excellence in Education, introduced the 33rd edition of idronics: Heat Pump Water Heater Fundamentals.

This plumbing-focused edition will assist the reader in evaluating heat pump water heater (HPWH) technology while investigating the emerging technology’s advantages and limitations in both retrofit and new construction applications.

Subscribers to the journal received a hard copy of the new edition in September. Caleffi also provides an interactive experience for the journal, optimizing access for mobile, tablets and desktop devices. The interactive edition can be found at

Not familiar with idronics?  The complimentary journal is provided semi-annually and is written for industry professionals to aid them in system design, component application and selection.