Should I scrap this heater?

I got this old heater for free. It's natural gas, 160,000 BTU's and made by Dayton. Model is 3e249, it is discontinued. I'd guess this one is from the 80's.
http://m.grainger.com/mobile/product/DA ... ater-3E249
I put it on CL for $100 on Friday and no bites yet.
It's a heavy bastard... 200-300 lbs I'd guess. Anyone know if these are worth much in scrap? Any good metals inside?
I'd hang onto it for a while but I'm not able to use my truck until this thing is gone.
http://m.grainger.com/mobile/product/DA ... ater-3E249



I put it on CL for $100 on Friday and no bites yet.
It's a heavy bastard... 200-300 lbs I'd guess. Anyone know if these are worth much in scrap? Any good metals inside?
I'd hang onto it for a while but I'm not able to use my truck until this thing is gone.