improve your crop quality
With the Heat in the Cooling Option,
there is an additional Gas Manifold per Cooling Fan.
The gas manifold is a two-stage system. The first stage is low fire and is on all of the time. This maintains 90% of desired temperature. The second stage is high fire and only acts as a boost until desired temperature is reached. This system acts as a cruise control via the cycling thermometer so that the valves do not need to be adjusted due to changes in outside temperature.