Runs On Electricity No Hassles Of Heating Water On Gas Or Heaters.You Can Keep It Inside The Quilt To Heat Up The Quilt Or Use On Low Temperature For Massaging Body Parts An Electric Hot Water Pouch Is A Pouch Filled & Sealed With Special Gel, Used To Provide Warmth, Typically Whilst In Bed, But Also For The Application Of Heat To A Specific Part Of The Body. It Is A High Quality Reliever From Aches In Cold Climatic Conditions. Gives Relief From Pain And Makes You Feel Comfortable