I'm in the process of wiring up my Kuuma. I will be moving my existing flow-through humidifier (which is currently mounted on my LP furnace plenum) to the new hot air duct work downstream of the Kuuma, seeing I don't plan on having my furnace on much during winter now that I will have the Kuuma. The way it's currently wired is it only has power when the LP furnace's fan is on and I have a "humidifier only" outlet which is mounted to the LP furnace. I plan on doing things the same way with my Kuuma. I don't think it's a good idea to have the humidifier running when there is no air going through the duct, ie when the fan is not running. My question is what type of 24V/120V relay do I need to accomplish this and what do I use for the trigger....R or G? thanks!