CONTROL YOUR GROW
In an open-air exchange room,
can-style exhaust fans and other
cooling and ventilation equipment can
be triggered by thermostat controllers
capable of determining day or night and
programming unique settings for each.
For example, it is likely that less air
exchange will be required at night due
to decreased transpiration, and thus,
decreased need for fresh CO2. Night
temps will also be lower, so fans won’t
be needed to remove heat as often. A
night program on a thermostat controller
might be set to turn on exhaust fans at 10
degrees cooler than a daytime setting.
Another consideration while ventilating
a non-sealed indoor room is to filter the
incoming air in order to prevent dust and
pests. If odor is of concern, the internal
and outgoing air can be scrubbed with a
cylinder-shaped carbon filter. The filter
would ideally be placed up high where hot
air is moving by default, and the exhaust
fan would be used inline with ducting,
pulling air through the carbon filter and
across the light reflectors, removing the
heat and odors. If an internal air scrubber
is needed for additional odor control, use
an additional carbon filter running with a
can-style fan placed on top, which creates
a loop in the room that absorbs the volatile
organic compounds (VOCs) or odor-causing
molecules and prevents smells from
seeping out of the garden.
“
Lighting technology continues to
evolve exponentially and, therefore,
serious indoor cultivators should upgrade
their lighting systems periodically.”
70
Maximum Yield USA | January 2017