A site I recently took over the maintenance of had a new building & some parking lots installed a couple of years ago. Apparently the paving contractors abandoned one of the torches they were using in one of the back corners of the property. Obviously I can't leave this propane tank lying on this lawn where we have to mow, so I have regretably inherited this item. Interestingly I had almost actually purchased one of these a few months ago . So my question is how does one safely & correctly use it? And how can I clean it up some, there is a bit of asphalt caked on it here & there. The hose is in bad shape so I'll get that replaced, but the valve & torch look great. To start it do I just open the valve & give it some spark like firing up the acetylene & O2 torches? Thanks for any help.