I haven't but I'm sure it can be done. My canopy is vented through the roof, with a small fan to help expel the heat. It works great. I actually put my chiller outside on a closed loop for less head loss.
I should mention that my tank is built in to my wall.
I've seen it done .... a very simple DIY that blows all the exhaust outdoors via some ventilation pipes and a large, low cfm muffin fan.
Me ..... I took a simplier route for my circumstance. I drilled two holes through the wall to plumb the chiller outdoors. Being in SoCal, the weather is quite cooperative.