{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Build It Forward","title":"What's Missing in HVAC Today with Ross Trethewey","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/a6b4ab48\"></iframe>","width":"100%","height":180,"duration":2695,"description":"In this conversation on Build It Forward, Nick Falkoff of Auburndale Builders sits down with Ross Trethewey of TE2 Engineering and This Old House to talk about where HVAC systems are heading, and why that future looks different from what most builders are used to today.\nThey start with the Studio HPDC barn as a real-world testing lab and how it can function as a community mechanical room, then get into what's driving change in the industry. From rising energy costs to the limits of traditional systems, they discuss why air-to-water heat pumps are gaining traction in the US and what still stands in the way.\nRoss explains why lab data and energy models only tell part of the story, and why measuring real-world performance is important to fill in the gaps. That leads into predictive controls, system behavior over time, and how thermal storage and phase change materials could reshape how buildings use energy.\nThe back half focuses on what this means in practice. Where do these systems make sense today? How do trades adapt? And how do we move from \"high-performance\" as a concept to something we can actually implement?\nChapters\n00:21 – The Studio HPDC barn as a high-performance learning lab\n02:53 – Air-to-water heat pumps and the U.S. market shift\n04:33 – How energy costs and market forces drive adoption\n09:39 – Why real-world data matters more than lab data\n15:50 – Predictive controls and system behavior over time\n17:10 – Thermal storage and phase change materials explained\n26:20 – Where air-to-water systems fit today\n32:15 – Retrofit strategies and hybrid system approaches\n36:18 – Measuring performance and where the industry is heading\nConnect with:\nRoss Trethewey, TE2 Engineering\nIG: @rosstrethewey\nhttps://www.te2engineering.com\nStudio HPDC\nIG: @studiohpdc\nwww.studiohpdc.org\nWork with Auburndale Builders on your high-performance build:\nvision@auburndalebuilders.com\nMusic\n\"Welcome to the Johnsons\" from the album Bird Mode\nby E*Lightning aka Jon Erickson, CPHB...","thumbnail_url":"https://img.transistorcdn.com/-Ao_bwqJOd8XP1Oqx5_ardqmHaaRKP_qhVtz4noqcLM/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9iZjE0/MzBkN2UyMTQwMzc0/M2NmZTY4NGRkZDQw/ZDUyZi5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}