JANUARY 2018 GROW TIP
Venting from Your FurnaceMany home growers struggle with finding a way to properly ventilate their grow rooms. Most professionals complete room volume calculations and use in-line fans for air intake and exhaust. Carbon filters for odor control are often needed to be installed on the air outtake and attached to light hoods to pull hot air outside. I have several friends that have found that exhausting air outtake through their furnace, water heater, or sewage stink pipes is the easiest solution.
Room Volume= Length x Width x Height
anyone working in that room for that matter. Airflow should be met with the least possible resistance whenever possible. Turns, bends, and reductions in duct work will reduce the CFMs, so try to keep the duct moving in straight lines whenever possible and use the widest pipe or flex ducting.
When a vent pipe is not easily installed, you can use existing ventilation in your home. Regardless of what you tap into, back-flow is the main concern. Back flow preventers can be installed between where you tab in the appliances exhaust to keep all air moving in the right direction. Hot air will rise, but an in-line fan may be needed.