Also contact the oil/gas/propane delivery/service companies for estimates as they do these installations as well and it might be less. That is who installed mine when I switched to propane and had to have lines run. The rates were better as they have package deals for the tanks, levelling of them, lines, and installation.They even can have service plans for delivery of the gas and maintenance if you want; something that might want to consider if concerned about using gas to have that extra help with it.