The Grill has 12 months works perfectly. For the feature I liked to give it 5 stars. Unfortunately now my canister corrosion due unusable. Zerrostet. Thus the Lotus Grill now has no function, which is more a Locusgrill. For 9.00 (excl. 5.50 shipping costs) can be ordered with a little luck a spare canister. You can expect additional 14.5 Euro "operational costs" per season so confidently. The concept, however, is very good indeed ;-)