Frypans, billys and hotplates can all be used on a gas burner. Frypans and billys come in cast iron (excellent heat retention but heavy), aluminium (lightweight but a health risk and food is prone to sticking/burning), enamel (lightweight and cheap but prone to chipping and then food can stick/burn), stainless steel (lightweight, durable but expensive).
Personally, we prefer stainless implements. We carry 2 billys that nestle inside one another plus a billy with a spout for use as a kettle. The only problem we have had is that our equipment uses rivots, which have eventually created weak spots and leakages (after approx. 4 years use). This problem is overcome with a spot
We also carry a thin cast-iron hotplate that is designed to fit 2 burner gas cookers. These are available from most good camping stores and means you can have a BBQ without an open fire.
Some people prefer gas cooking, simply because they find campfire
cooking too dirty. However, gas cooking is often your only option when fire restrictions are in place or where firewood is scarce.
There are three main types of gas/fuel camp stoves.