Plumbing & Mechanical and PM Engineer Chief Editor Nicole Krawcke moderates a discussion on all things radiant with our incredible panel of Radiant All Stars: Robert Bean, ASHRAE Fellow, lecturer and retired engineering technology practitioner; Mark Eatherton, a retired hydronic heating contractor, educator and columnist, and the former executive director of the Radiant Professionals Alliance; Dan Holohan, founder of HeatingHelp.com, and well-known industry educator and author; John Siegenthaler, consulting engineer and principal of Appropriate Designs in Holland Patent, New York; and last, but certainly not least, Dave Yates, a former mechanical contractor and owner of F.W. Behler in York, Pennsylvania.