The Mangrove Jack's Heat Pad (220–240V, 25W) is a flat heating tray that sits beneath your fermentation vessel, providing gentle, even warmth to encourage fermentation at the correct temperature. Specifically constructed to support the weight of a standard 5-gallon home brew fermenter.
Place your fermentation vessel directly on the heat pad. Monitor temperature with a stick-on thermometer. Also see the Brew Belt as an alternative heat source that wraps around the vessel instead.