This week, we welcome a guest who truly needs no introduction: Alex Meaney, founder of MeanHVAC. For many in the industry, Alex has taught us much of what we know about Manuals J, S, D, Zr, and more.

In this episode, we dive straight into the intricacies of Manuals J and S, especially their application to heat pumps. Unlike traditional HVAC systems, heat pumps—capable of both heating and cooling—are far more sensitive to mistakes in system design. With Alex’s expertise, we explore why this is, and how to address these challenges.

Throughout the episode, Alex drops invaluable insights, including:

• “Manual J is the problem, Manual S is the solution, and Manual D is the execution.”
• “Cooling is where everything gets complicated.”
• A clear explanation of why higher SEER ratings mean worse moisture removal
• How and why heat pumps have exponentially increased HVAC design complexity
• An explanation of Adequate Exposure Diversity and why it matters
• How much (or little) you make working in public radio
• And lots more

If you’ve ever wanted to geek out on how heat pumps are reshaping the fundamentals of HVAC system design, this episode is a must-listen!

Show notes

• Alex Meaney
• MeanHVAC
• Please see our website for the charts and graphs referred to in this podcast: https://info.amply.energy/blog/tag/heat-pump-podcast