John Siegenthaler: How to wire fresh air dampers The 2018 version of NFPA 54 prescribes methods for providing this air into confined spaces using one or two openings to outside space. John Siegenthaler, P.E. March 27, 2018 A simple circuit to coordinate fresh air dampers.Read More
The General Society of Mechanics and Tradesmen of the City of New York has a unique home Saving a piece of NYC history Dan Holohan March 20, 2018 In January 2015, the Association of Energy Engineers invited me to Manhattan to talk to them about steam heating.Read More
The Glitch & Fix: February 2018 John Siegenthaler, P.E. February 26, 2018 One Chance to Get It RightRead More
John Siegenthaler: Tell me more about 'nubbed' foam panels John Siegenthaler, P.E. February 26, 2018 Designers need more information on “nubbed” foam insulation panels.Read More
Dan Holohan: Learning about conduction Dan Holohan February 19, 2018 Don’t try this at home. Read More
Congress approves GHP tax credits The tax credits will be retroactively reinstated February 16, 2018 The reinstated GHP tax credits are retroactive to Jan. 1, 2017, and extended to Jan. 1, 2022.Read More
Noritz Residential Combination Boiler February 15, 2018 Noritz’s Residential Combination Boiler allows for simultaneous residential domestic hot water and space heating. Read More
A. O. Smith mobile app February 14, 2018 The newest version of the A. O. Smith app, available for iOS and Android devices, features three core functions.Read More
Siegenthaler: There's no such thing as 'head pressure' John Siegenthaler, P.E. January 30, 2018 Anyone who has worked on the technical side of the hydronics industry has used terminology such as: pressure, differential pressure, head and head loss. These terms all have legitimate and specific meanings.Read More