HVAC Systems for Cannabis Cultivation Facilities
Hartzell’s Heat & Air designs precision temperature, humidity, and CO₂ control systems for licensed cannabis cultivation facilities in Oklahoma. We understand the tight tolerances required for compliant cultivation environments and the consequences of HVAC failure during a grow cycle. Call 405-375-4822.
Controlled environment HVAC systems are critical for cannabis cultivation facilities. Precise temperature, humidity, and airflow management directly impact plant health, yield, and operational efficiency. Hartzell’s Heat & Air provides engineered HVAC solutions for controlled agricultural environments across Oklahoma.
Environmental Control Requirements
Cannabis cultivation requires strict environmental control, including consistent temperature regulation, humidity balance, and proper air exchange. Improper HVAC design can lead to mold risk, reduced yield, and operational inefficiencies.
- Temperature stability
- Humidity management
- Air circulation and filtration
- Equipment load management
- Redundancy planning
We also provide broader controlled environment HVAC system design and specialty services.
Engineered System Design & Installation
In partnership with a licensed and bonded engineering firm, our team provides engineered system design and installation services. Combined project experience exceeds 600,000 cooling tons across multi-state installations.
Dehumidification & Environmental Control Equipment
We supply, install, and warranty high-performance dehumidification systems including Quest dehumidifiers, designed specifically for controlled cultivation environments.


Environmental Controls & System Automation
Precise environmental control requires advanced system automation. We install and service environmental control systems, including temperature, humidity, airflow, and monitoring controls.
Pump & Mechanical System Service
We provide pump repair and replacement, chilled water system service, and mechanical system maintenance for cultivation facilities.
Scheduled Maintenance Between Grow Cycles
Scheduled HVAC and environmental system inspections between grow cycles help prevent operational failures and protect yield consistency.
High-Efficiency System Integration
Energy efficiency is critical in cultivation facilities due to continuous operational demands. High-efficiency systems help reduce long-term operating costs while maintaining environmental stability.
24/7 Emergency Response
Controlled environment operations require reliable emergency response. Our technicians are available for urgent system failures affecting temperature, humidity, or airflow stability.
Service & Maintenance
Ongoing service and system monitoring are essential to prevent operational downtime. We provide maintenance and system support for controlled environment HVAC systems.
For consultation on controlled environment HVAC system design or service in Oklahoma, contact our team to discuss your project.
See Our Work
Ready to Schedule?
Call 405-375-4822 or book online. Same-day appointments often available. Free estimates on new systems.
Nearby Communities We Serve
Our Job Isn’t Done Until You’re Satisfied
- Your system is running, tested, and set to your preferred temperature
- You understand how to operate your new equipment or thermostat
- The work area is clean — we take our trash with us
- You have documentation for manufacturer warranty and any applicable rebates
- Every question you have is answered before we leave the driveway
Written by Dave Hartzell — Owner, Hartzell’s Heat & Air. Master HVAC License #00115936. Serving central Oklahoma for 15+ years.