Thank you to all guys/gals!
Not worried about venting the water - really - not enough humidity is actually an issue where I live during the winter months, and we already run a humidifier 24/7... so unless its a LOT of water, that doesn't concern me a bit. I didn't realise that the outgoing temp would be cool enough to use a metal dryer tube/hose/vent... and yes, that will work fine actually because that would be "normal" to have coming out of this structure (or worst case scenario, shoved out the back window wrapped in some insulation so that the window isn't leaking a ton of 20 degree air back into the area I'm trying to heat.
Thank you folks so much!
MSotherden
