TE2 Engineering

Ross Trethewey is the founder and lead engineer of TE2 Engineering, as well as the Home Technology Expert on the TV show, This Old House and Ask This Old House. TE2 Engineering is a consulting engineering firm that provides building energy analysis, mechanical, electrical and plumbing design, and renewable energy design for clients in both the residential and commercial markets. The company's focus is high-performance HVAC design, renewable energy design and integrated smart home design. Ross has lent his expertise to This Old House since 2011, contributing to stories about renewable energy that looked at solar power, wind power, geothermal, and off-grid storage. He became a regular presence on Ask This Old House in 2016 with the launch of "Future House", a segment that looks at the impact technology will have on how we build and live in our houses. Ross earned Bachelor of Science and Master of Science degrees in mechanical engineering from Tufts University in Massachusetts. He is also a professional engineer. Prior to forming his own consulting company, he lived and worked in Germany for a manufacturer that specializes in high-efficiency HVAC and renewable energy equipment. Ross lives in the Boston area with his wife and two young sons. He learned to sail at an early age and loves to spend as much time on the water as possible.