Ya know, I really dont know how many hours it takes to burn a tank off.. I fill it myself & never get it full. I only run the heat off & on & dont keep a record..BUT,, I can say thins,, Its not a heavy user. Id say it uses less per hour than the grill with just 2 burners lit. The grill has 4,, It can suck some gas down,As for BTU's, ehh, Here, this is the one I got, looks likeothers of higher BTU output are out there,, BUT, slightly more heat, Quite a bit more coin..
Catch that? BIT/Coin,, thot Id slip that in for the folks..
http://www.academy.com/webapp/wcs/stores/servlet/Product_10151_10051_26019_-1...