In this edition of 30 Mechanical Minutes we speak with hydronics expert John Siegenthaler about the state of air-to-water (A2W) heat pump technology for residential applications.

We'll cover topics like the fundamentals of A2W heat pump mechanics and the variations in design.

And in this ½-hour overview we'll also touch on installation considerations and the most significant changes designers and contractors/installers need to be aware of.

There will be time for questions, so please join us on Wednesday August 23 at 1:00 P.M. (eastern time)