UNBELIEVEABLE- only December and propane already $4.20/psu. YES..SURBURBAN IS A PRICE GOUGER.. Ferrell Gas Co. out of Pittsburg is only... $2.97.. tank rental is cheaper and they will deliver 100 gallon verses minimum 150 gallon. $633.00 for 150 gallon which will last less than 1 month is totally ridiculous!!! they need to investigate surburban for price gouging.