Are butane/propane gas rings safe indoors?

[Vortex2]

Amerzon shows a few butane/propane gas rings which say they can be used indoors.

Is this safe?

[adam2]

Reasonbly safe yes, but take care.

Avoid the type that uses a small disposable gas cartridge, mounted sideways and next to the flame. These have a poor record and I would not use one even outdoors.

Safer, and much cheaper to run are those connected via flexible hose to a large external and refillable cylinder.

Butane wont work reliably below about 10 degrees, and wont work at all below freezing point. NEVER APPLY DIRECT HEAT TO ANY GAS CYLINDER. Urinating on it or applying warm water at no more more than blood heat is acceptable

Propane is fine to well below any temperature found in the UK, but should not be kept indoors domestically. In an emergency I might be tempted though. Propane appliances are fine indoors provided that the cylinders are kept outdoors and the fuel piped indoors.

Basic safety precautions.
Keep away from flammables, do not use under a low ceiling.
Use the correct type of regulator.
Replace flexible hose if perished or very old.
Carbon monoxide risk is fairly low, but still have a detector for just in case.

[adam2]

Idealy obtain two LPG cooking appliances.
Firstly, a two rings plus grill cooker as widely used for camping. Handy for cooking light meals, be certain to get one that works from a large refillable gas cylinder and NOT from small disposable cartridges.

Secondly a large single gas ring, preferably of cast iron construction, and preferably with two or more concentric rings of gas jets under separate control. Heat output of AT LEAST 6 KW, bigger is better. This appliance is useful for bulk boiling of pasta or vegetables for a crowd, or heating bath water, or boiling laundry.
Note that the camping type cookers usually have an output of only about 1.2 or 1.5 kw per ring, fine for light meals but hopeless for bulk water heating, boiling laundry etc.

[adam2]

And this is the type of high output heavy duty boiling ring that I suggest. Uses low pressure butane or propane, maximum output 9.2 kw.
https://www.gasproducts.co.uk/foker-tri ... 03200.html

Other brands and suppliers of very similar products exist. I confirm that I have no connection with the above.

Probably intended for outdoor use, but in an emergency I would consider indoor use. Only in a large and well ventilated space. Best on the floor.
9.2 kw will heat a lot of water quickly.