JAPAN GOOD DESIGN AWARD Semi Double Ring Flame Gas Input LPG L/R:3.7kw ) Sealed Burner Stainless Steel Top Enamel Pan Support Battery Ignition Flame - Semi double ring ensures excellent heat distribution for quick and even cooking. Flexible Cut-out Size - Both the glass and stainless steel top plate fit the hob on any cut-out dimensions as stated, without further modifications to your counter-top. Good as a replacement hob! Battery Ignition - Fast and easy, with no electrical wiring. Easy to replace battery, too. Elegant Knob - The gas ignites automatically with one push and a turn, offering the convenience of using one hand to control the flame. Rubber Legs - The attached rubber legs allow you to place the hob directly on the kitchen workspace, without having to cut a hole or modify the kitchen top. Sealed Burners - Messy spillages are minimized and cleaning the hob is quick and easy Cast Iron Wok Stand - Additional wok stand to support a big wok for Asian cooking or stir frying. Product Size: W 770x D 452x H 72mm Cut-out Size: W 650-735x D 350-421mm Rinnai kitchen appliances warranty duration : 2 years (General) 5 years on Gas Valve (Built-in Hob & Table Top Cooker)