I'll second the Coleman Powermate 45,000. I got mine at Home depot for 79 bucks before tax. The only sucky thing about it though, is that , if it's not "really" cold out and you have an enclosed top, you have to reg. down at the valve.The good thing about having too much BTU's is that in 11 degree weather (last week in Hells Canyon!) in an open boat, can really make a difference in the fishing trip.