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Cannabis — Frequently Asked Questions

Prepare your cannabis growing operation for success by asking the right questions first. Here are some frequently asked questions our cannabis growers ask:

Q. How are states regulated?
A. Each state is different according to type of distribution: medical or recreational. Recreational states include Alaska, California, Colorado, the District of Columbia, Maine, Massachusetts, Nevada, Oregon, and Washington. Currently 21 states have broadly legalized cannabis for medicinal purposes.

Cannabis growers are not regulated by the federal government, which still considers it illegal. That leaves only state and local authorities, but don’t be fooled by that “only;” it just conceals the size of the work to be done. Paperwork is plentiful, and applicants have a long laundry list of requirements to achieve licensing, from large sums in escrow accounts to established years in growing/horticulture or the nursery industry.

Q. How do I finance a legalized grow?
A. Because of federal restrictions, banks won’t loan cannabis businesses money, and federal small- business loan programs are closed as well. That means backing must come from individuals in handshake deals. There are private firms that do issue cannabis grow loans, usually with very stringent qualifications.

Q. How big should the initial grow be?
A. This is usually dictated by the state. While it is difficult to generalized due to the number of new states legalizing cannabis each year, in medical-approved states, you are usually allowed a certain number of plants per patient based upon the estimated scripts to be written.

Each state varies on the recreational plants per grow.

Q. What are the key elements to consider in a cannabis build?
A. Energy source is probably the biggest factor to consider when building a cannabis growing environment.

Lighting, cooling, and heating all require electrical service. The owner/operator must confirm with their local utility companies on what services are available before undertaking a new build.
The kVA (kilo Volt Ampere) found on the equipment panel is crucial in your electrical requirements.

Q. Should I grow in a greenhouse or an indoor facility?
A. Whether indoors or in greenhouses, growing top-grade cannabis requires carefully monitored conditions of light, temperature, and ventilation. Cannabis thrives in warm, moist conditions. Cooling and humidity control are critical.

When growing in the wild, cannabis plants produce buds as the days become shorter. To get plants to bud, a grower must simulate 12-hour “nights,” by blacking out some of the daylight. This is relatively easily achieved in an indoor facility, but to do it in a greenhouse, you need a retractable blackout curtain. Some blackout curtains are automated, and can be rolled over the greenhouse like a garage door, while others are manually hung.

Beyond saving money, cannabis greenhouses impose a smaller environmental footprint — an issue that’s become an increasing concern in the cannabis industry. Although cannabis greenhouses eliminate the need for many energy absorbing lights, some growers opt for a hybrid approach, using some grow lights to manipulate the plants’ cycles. Cannabis will grow higher during longer daylight hours, as opposed to budding during shorter daylight hours. So, growers who want to encourage the plant’s initial growth phase in the middle of winter may affectedly produce more “daylight” hours using lights.

There is a debate on whether greenhouse or indoor grows are more energy efficient, which can be dictated by the operation’s location, as well. Personal preference by the growers usually affects whether they go with indoor or greenhouse grows.

Q: I’m ready to start growing! Which environmental control system is best for my cannabis operation?
A: When growing cannabis indoors, the key is humidity control. A typical indoor HVAC system, which can cool air but won’t control humidity, is not designed to provide the control needed for consistent healthy growing. A hydronic system, such as the DeltaCool™ Chilled Water Cooling system, will control relative humidity to an ideal level for growing by using water as a heat-transfer medium for both cooling and heating. It also regulates temperature at the same time, keeping humidity at a safe level by using the sensible cooling approach. Temperatures are cooled to at or around dew point, which is best for preventing condensation and humidity that can encourage a variety of diseases in the indoor growing environment.

Look for a system that offers precise control of the growing environment. Cannabis growers have unique operations, and they need consistent systems, as well as flexibility, throughout the crop growing cycle. Each DeltaCool™ system is customized to suit a growing operation’s characteristics and accommodate individual temperature zones. Including under-bench heating provides added control, allowing the grower to accelerate growth and minimize root-rot. Investing in a horticultural environmental controller, such as the DeltaCool™ system, will regulate both heating and cooling elements to give growers the most immediate control of their growing environment.

For more information, contact us at 800-552-5058, or email:

Delta T Solutions
27711 Diaz Rd, Suite B, Temecula, CA 92590 • 800.552.5058 • 760.682.0428 (fax) •