One of the main factors to consider in a warehouse grow room is the heating, cooling and ventilation of the area. HVAC is a major factor when it comes to growing pot indoors. Many people do not think that this would be a big deal because plants are naturally outdoors and they do not have a controlled environment. Pot plants thrive in dry, temperate conditions. It is vital to invest in a good HVAC system for your warehouse grow room. With the exception of the west coast, most places have intense seasons and the plants can not take that kind of change. Being able to control the temperature of the warehouse can increase crop productivity, thus, increasing profits and turnover time. Another thing to consider when starting a warehouse grow house is how cost effective you can be with your heating and cooling needs. There are a number of professionals out there that can help you determine the best HVAC system for your warehouse. Being able to control the moisture in the warehouse is also an important part of growing marijuana. If you are able to control the moisture with a proper ventilation system you will increase your productivity even further. The best part about doing everything right the first time is that is saves you a lot of time and money. Investing in a quality HVAC system for your warehouse is the best thing you can do for your crops.