Upcoming Presenters
John Seigenthaler, P.E.
John has over 40 years of experience designing modern hydronic systems. He’s a hall-of-fame member of the Radiant Panel Association and has presented at hydronic and radiant heating conferences worldwide. John is the author of two textbooks: Modern Hydronic Heating, 4th Edition, and Heating with Renewable Energy.
Richard Trethewey
Richard Trethewey has been an integral part of the This Old House team since the home improvement show’s debut in 1979. Today, he also appears on the Emmy Award-winning show’s sister series, Ask This Old House. He is a licensed master and journeyman plumber in the Commonwealth of Massachusetts and has long been an advocate for professionalism in the building trades. Richard is the founder of RST Thermal, a manufacturer’s representative company that provides training to the skilled trades. Richard lives on the South Coast of Massachusetts when he is not living aboard a sailboat in Boston. His interests include sailing and home renovation. He has two sons, Ross and Evan, and enjoys his 5 grandchildren
Ross Trethewey
Ross Trethewey is the founder and lead engineer of TE2 Engineering, as well as the Building Engineer on the TV show, This Old House and Ask This Old House. He is licensed professional engineer in various states and earned both bachelor and master of science degrees in mechanical engineering from Tufts University. Ross lives with his wife and 2 sons in the Boston area.