Special Offer: Get 50% off your first 2 months when you do one of the following
Personalized offer codes will be given in each session
1594822260-6cafa78f13e60590
Name
Duane Lewellen
Title
Principal, Lewellen Associates
Bio
Duane is recognized as an industry expert for the WA State Energy Code (WSEC) and has been actively involved with the code since the 90’s, when he was an original circuit rider from 1994-1997.