The Doctor Is In

By Dr. Greenhouse, Inc.

Dr. Nadia Sabeh is President and Founder of Dr. Greenhouse, Inc., an agricultural and mechanical engineering firm that specializes in the design of HVAC systems for indoor plant environments.
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FAQs about The Doctor Is In:

How many episodes does The Doctor Is In have?

The podcast currently has 110 episodes available.

The Doctor Is In episodes:

October 21, 2025 110. Canadian Greenhouse Conference Takeaways
We are back with more expo floor interviews! This week Nadia’s interviews come from the Canadian Greenhouse Conference, where Nadia presented about "Optimizing Airflow & Climate Control” This year’s takeaway guests were:
🔹 Kevin Meier, Vice President and General Manager of Argus
🔹 Peggy Paskell, Peg’s Country Blooms and Greenhouse
🔹 Amos Bassi, Senior Plant Specialist for Philips Horticulture
🔹 Paul Arena, Greenhouse Climate Consultant for Ludvig Svensson
🔹 Miguel Ayuso, International Commercial and Operations Agent for MSC Greenhouses
🔹 Victoria Buma, General Manager, Berry Growers of Ontario
Intro Music Credits: Melody – Luke Bergs & Waesto | https://soundcloud.com/bergscloud/ Music promoted by https://www.chosic.com/free-music/all/ Creative Commons CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/
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23min
September 03, 2025 109. Dr. Greenhouse Lessons: What is VPD?
This episode is part of a series of episodes that Dr. Sabeh presents as lessons, or mini lectures. They’ll cover the basics and nuances of HVAC and the importance of environmental controls. This week we are reviewing our hottest topic: VPD. What is it? Why does it matter? How can you use it to help your plants thrive in your indoor growing environment? We wanted to provide more information about a crucial factor in your growing process. Remember to check out our other VPD content, like the app walkthrough, the calculator, and our blogs. Thank you for growing with us!
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36min
July 09, 2025 108. Dr. Greenhouse Lesson Reviews: 6 Tips for Keeping Your Greenhouse Cool
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35min
June 24, 2025 107. What Plants Crave feat. Gretchen Schimelpfenig: CEA Energy Management
Wrapping up our series discussing energy in all forms and its impact and function in CEA facilities is Gretchen Schimelpfenig!
Gretchen is a Senior Energy Engineer at Energy Resources Integration, LLC (ERI), a clean energy consulting firm developing a sustainable future for our planet through cost-effective energy management. She is responsible for implementing energy efficiency and emerging technology programs and providing direct consulting services. Gretchen has seven years of experience in Controlled Environment Agriculture (CEA) and has worked for 11 years in the energy industry. Gretchen is a registered Professional Civil Engineer in California and Vermont. She obtained her master’s degree in Civil Engineering from Stanford, where she studied sustainable design and construction with an energy emphasis and was a Schneider Fellow at the U.S. Green Building Council. Gretchen resides in Huntington, Vermont, with her partner, their five cats, and many houseplants.
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1h 44min
June 10, 2025 106. What Plants Crave feat. Jeff Kelley: Energy Modeling in CEA
Welcome back to our new series with several interviews discussing energy in all forms and its impact and function in CEA facilities. In this episode Nadia and Jeff Kelley of Kelley Energy Management discuss energy modeling and utility incentives for CEA facilities..
Jeff is a seasoned professional in the utilities industry. With over 40 years of experience of working in the utility sector, Kelley has taken his knowledge and expertise to the cannabis industry – helping maximize utility rebates and incentives for cultivators across the country, capturing over $40M in incentives for customers. Since 2019, Jeff has been using energy modeling as a technique to leverage custom incentives not available through standard incentive processes. In addition to maximizing incentives, the energy models provide customers with clear visibility into their planned energy consumption.
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1h 45min
May 27, 2025 105. What Plants Crave feat. Dan Dettmers: Energy Codes and Standards for CEA
Welcome back to our new series with several interviews discussing energy in all forms and its impact and function in CEA facilities. In this fourth episode Nadia and Dan Dettmers of Madison Air discuss energy efficiency and regulatory guidelines given by local, state, and federal agencies regulating CEA facilities..
Dan Dettmers joined the Controlled Environment Horticulture field in 2018 when he was hired by Quest, a Madison Air company. He brought over 20 years of expertise in food and pharmaceutical processing, industrial refrigeration, and HVAC infrastructure design to the industry and 15 years in Agribusiness. In particular, Dan pursued his passion for agriculture by moonlighting as the owner of a hop farm (also cannabacea family), where he and his partners built a vertically integrated business that encompassed every stage of hop production.
At Madison Air and its CEH companies (Quest, Ag IQ, Conviron), Dan plays a key role in shaping standards, codes and regulations that enhance the efficiency and effectiveness of indoor grow space conditioning equipment. In addition to guiding industry best practices, he is actively involved in research and development, creating new products, assisting customers with climate control solutions, and providing technical training both within and beyond the company.
Stay tuned to continue exploring how energy is defined, its importance in CEA, and energy centered interviews with more industry experts.
Thank you for growing with us!
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1h 51min
May 13, 2025 104. What Plants Crave feat. Sam Milton: Energy Efficiency and Incentives in CEA
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1h 43min
April 29, 2025 103. What Plants Crave feat. Rob Eddy: Energy Saving Opportunities and Challenges in CEA
Welcome back to our new series with several interviews discussing energy in all forms and its impact and function in CEA facilities. In this second episode Nadia and Rob Eddy of the Research Innovation Institute discuss energy saving best practices and tell stories about their greenhouse experiences. Stay tuned to continue exploring how energy is defined, its importance in CEA, and energy centered interviews with more industry experts.
Thank you for growing with us!
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1h 42min
April 15, 2025 102. Dr. Greenhouse Lessons: What Is Energy?
Welcome back to the lecture hall with Dr. Nadia Sabeh! This week we are beginning our new series with several interviews discussing energy in all forms and its impact and function in CEA facilities. In this first episode Nadia reviews how energy is defined, its importance in CEA, and some terms to understand as we dive in with some experts.
Thank you for growing with us!
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30min
April 01, 2025 101. A Look Back at the First 100 Episodes with Guest Host Tad Hussey
Enjoy a host interview with Tad Hussey from KIS Organics living soils and the host of the Cannabis Cultivation and Science podcast guest hosting for this episode! This is an opportunity to learn about Nadia's background as an agricultural and HVAC engineer and how we got to 101 episodes of education and industry insider information. Thank you for growing with us.
Intro Music Credits: Melody – Luke Bergs & Waesto | https://soundcloud.com/bergscloud/ Music promoted by https://www.chosic.com/free-music/all/ Creative Commons CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/
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1h 7min

FAQs about The Doctor Is In:

How many episodes does The Doctor Is In have?

The podcast currently has 110 episodes available.