Single Burner Stove Duke Of Edinburgh- Hexamine (Hexy) Burner Or Single Burner Gas Stove?

Duke of Edinburgh- Hexamine (Hexy) Burner or Single Burner Gas Stove? - single burner stove

I Should a Hexy (eg: / / www.militaryexperience.co.uk / picstove.gif) or a gas stove (http://direct.tesco.com/q/R.205-5042. Aspx, for example)