I know this is an old post but I'll throw my 2 cents in any way. I bought one used it in my 14ft Shasta trailer one weekend when it was cold, I bought the adapter to use a 20 lb tank, ran the hose outside through a opening in the floor set up just for that purpose. I did have a window cracked and had no problems. As far as heating a town house, I doubt it would do it.

Just my opinion.

Shadow Out!!!