Unless I'm getting it wrong somewhere these things are an utter con - basically a metal box with a brick in, for silly money, using fuel at a ludicrous cost ......It would probably be considerably cheaper and safer to use a large electric fire.........
Sticking neck out time........ I've just found a French website flogging the things, and quoting 1.2 litres per hour - fuel cost 20 litres for 59 euros, and your 1.2 litres contains approx 6kw/h of energy - then on their own admission, unless you bung the chimney up, two-thirds of the heat will go straight up the chimney...........
THEN you've bunged your chimney up, and you're burning the stuff, which doesn't even claim complete purity, and dumping the results of the combustion into the air in your home........large quantities of water vapour, and whatever toxic fumes are generated by the 4% of odds and sods that's in it..........
I would say trading standards first stop - on several grounds - they look extremely unsafe, the thought of refilling one when hot is faintly petrifying with what is essentially rocket fuel, there is no proper burner to make the best of the burning fuel, I would suspect that blocking flues could be lethal, and if you did, if you didn't expire from the fumes, your walls would be streaming with water................
If someone SOLD them to you, I'd get VERY cross with them!
