Allied Air Enterprises, a Lennox International Inc. company, expands its line of easy-to-install home heating and cooling solutions with the new LYNX 18 SEER inverter heat pump under the Ducane, Concord and Allied brands.

The A. O. Smith University class schedule is flexible month-to-month, and sessions are offered on a variety of topics, including residential training, commercial training, tankless training and heat pump training.

With systems dating back into the 1800s, hydronic heating has been around a long time. As with many technologies, a modern hydronic heating system bears little resemblance to one based on the earliest design techniques and hardware.

Plumbing & Mechanical magazine is proud to present to you the first 2021 installment of “Adventures in Plumbing & Heating,” featuring the expert advice of industry veteran Dave Yates.

The measure of a heat pump’s heating performance is called coefficient of performance (COP). It’s the ratio of useful heat output divided by required energy input, where both the output and input are expressed in the same physical units.

By now, most of you have either installed inverter-driven variable speed heat pumps that can deliver their nominal rating output at temperatures well below 0° F without any backup heat source, or at least have become familiar with the technology. 

We’re only human, and most humans like to put off things until they absolutely have to be done. 

As global energy planning moves away from fossil fuels and toward electricity, an increasing number of hydronic heating systems are being supplied by heat pumps. 

Each year, Plumbing & Mechanical editors receive thousands of product releases from industry manufacturers.