why don't you call Wolf and ask their tech dept? be sure to have the model #

The older style LP tanks do use an internal left handed thread. The new tanks all have the "OPD" (overfill protection device) and they also have an external right handed "worm" type thread. You have two options: get an adapter at Walmart for about $10.00 or, check the date on the old LP tank you have, if it is twelve years or older, then when you have it refilled they will require you to have it re-certified. It is probably cheaper for you in the long run just to do a tank exchange for about $16-$18 bucks. That way you are good for another twelve years. As far as your question about running the bbq on NG, it won't work without a conversion. LP gas is at a much greater pressure than NG so, consequently the orifices are smaller for LP than NG. You can check with Aussie and see if they offer an NG conversion kit. If not, you can attempt to drill out the orifices by hand. There are some places on this discussion board as well as others on the net that talk about how to do this. If you do that, you can also get a 12' Natural Gas hose with a quick disconnect on the end that would fit (maybe without an adapter) on your existing stub from your house and the bbq. I just picked one up from Home Depot. It was made by Char Broil in the accessory area. In either case good luck and happy grilling. bsbbq

I am planning on getting the Virco and the costco conversion kit. Will I need anything else to buy to get this to work in NG. We bought a new house and it has NG valve outside already but will I need to buy a quick disconnect hose or does that come with the kit. We are putting the grill very close to the outlet so only about 3-4 feet of hose is needed. If I do need to buy one, who has the best price on a quick disconnect hose?

I converted my Bluestar Rangetop myself. Prizer-Painter sent me the parts. It took about an hour to make the changes then adjust the shutters and low flame. Now that I know what I'm doing it would be a 15 minute job.