It's a Zeny hydroponic tent.
I'll look for the links; but I have a small ceramic space heater hooked up to an auto off thermostat plug, so when the temp gets up enough it shuts the power to the heater off, and when it dips back under (I have it set to 78 - 84 degrees F) it turns back on.
The 2" duct runs from the inside fan suspended above on those cross beams to the window in the room, hooked up to one of those slatted dryer covers you would see on the outside of a house.
My "print room" is a closet surrounded on 3 sides by exterior walls, and I live in a smaller apartment, so I can attest to the setup venting fumes and keeping heat very well.
With the second printer being added, I've picked up a 12 prong smart plug (6 smart , 6 always on) so I'm excited to see if it works well for the price. If so, I'm going to set the venting fan, thermostat controlling the heater, and box fan I have in the window to auto shut off when I turn off the printers. It also means I could have them running for a few minutes before I get the printers started for the day.