How to make a patio heater from empty gas/propane tanks.

First of all DO NOT cut into a gas/propane tank unless you know what you are doing! Even though the tank may appear empty there is a risk of explosion and fire. The tanks I used were empty and had their valves removed. They were then filled with water to remove any remaining gas, emptied then refilled again to be sure. The tanks were then left in the open air for a few weeks to vent before being used. YOU HAVE BEEN WARNED!
FYI : It has since been brought to my attention that it may be frowned upon to cut open or modify a gas/propane cylinders in some parts of the world! Be sure to check and follow your local rules and regulations.
Here are some of the many YouTube tutorials I watched before attempting it:
   • degassing used cylinders  
   • How To Remove A Valve From A Gas Bott...  
   • How to Open a Propane Tank Without Bl...  
   • how I clean a propane tank before cut...  

All I had to purchase for this project was the 4 inch(100mm) steel tube for the chimney part. It cost €12. The hinge nuts and bolts and the high temperature I already had. I reckon it would have cost about €20 if i had to purchase them.
It is a fairly easy project to do but there is a lot of cutting grinding and sanding. I decided to burn the paint off the cylinder as it was difficult the get it off with the grinder. Thanks for watching !

Music: YouTube audio library.