Sorry, I just re-read your post, you want to use your propane torch head for natural gas. Neither the gas company nor an appliance shop can help you there. I don't think that will work unless you do a homemade modification. You might check youtube or instructables.com to see if any one has modded a propane head to use natural gas. What you CAN do is get the gas company or appliance shop to help you fit a stove top burner with the right jet for NG, and then use that burner under your charcoal basket. I don't recall if Dennis has his burners available jetted for both gases. Dennis' burner with a NG jet would be your cleanest install, email him.