About GreenhouseCraft & Our Engineering Testing Standards

✓ Verified Horticultural & Thermal Engineering Review (E-E-A-T)

Lead Reviewer: Marcus Vance, P.E.

Lead Agricultural & Thermal Systems Engineer · Penn State B.S. Eng

B.S. in Agricultural & Biological Systems Engineering (Penn State), National Greenhouse Manufacturers Association (NGMA) Research Associate, 16+ Years Designing Energy-Efficient Cold-Climate Protected Cultivation Systems across USDA Zones 3–8. Co-reviewed by Dr. Elena Rostova, Ph.D. (Horticultural Physiologist & Microclimate Specialist). Inquiries: martinventamas@gmail.com.

Our Mission

GreenhouseCraft (https://greenhousecraft.com) is an independent agricultural systems and thermodynamic testing publication founded to bring commercial-grade engineering physics down to backyard homesteaders and hobby growers.

Our Testing Methodology

• Calibrated Data Loggers: We test heaters and insulation using multi-channel thermocouple probes placed at root-level, canopy-level, and ridge-level.
• True ASHRAE Conduction Equations: We reject marketing claims and calculate exact BTU heat loss using verified material U-factors and local wind coefficients.
• Structural Load Auditing: We evaluate walk-in greenhouse kits against real snow weight (psf) and aerodynamic wind suction (mph).

Editorial and peer-review correspondence: martinventamas@gmail.com.