So, I have an unheated garage, but it is insulated. It maintains above freezing due to the contact with the house, but it still gets intolerably cold. I've considered routing my electric dryer out there to help keep it a bit warmer. It's not intentional heating, and would only coincide with the dryer, but I'd think that dumping some hot air into the garage would raise the temperature a bit.
Are there any major concerns with doing this? I'm still planning on getting a space heater out there for when I'm actually out there, but I'm thinking that it would be a slightly more productive use of the spent heat in my dryer than just dumping it out the side of my house.