The invention provides a heat conduction device which uses the heat source of the kitchen appliance gas platform extension to generate steam to conduct heat in the flat metal layer at the bottom of the kitchen cabinet, so as to prevent cockroaches or insect ants from growing and hiding, and uses the device to generate hot water supply such as flow table washing utensils. The principle is that a metal hollow heat sink is set on the kitchen appliance vas furnace core, and water is injected into the metal hollow of the heat sink to generate steam. Gas or hot water, and guide the steam to the flat metal layer at the bottom of the kitchen cabinet to produce heat cockroach proof and baking bowl, and guide the hot water to the washing sink to supply hot water for use.本發明提供一種利用廚具瓦斯爐台延伸之熱源產生蒸氣導熱於廚櫃底方扁平金屬層產生溫熱,據以防止蟑螂或蟲蟻滋長藏匿,並且利用該裝置產生流理台洗滌餐具等熱水供應,其原理係於廚具瓦斯爐芯上套設一金屬中空吸熱盤,並注水於吸熱盤金屬中空內使產生蒸氣或熱水,而將蒸氣引導至廚櫃底方扁平金屬層產生熱防蟑及烘碗,另將熱水引導至洗滌水槽供應熱水使用。