Click to expand Tap to zoom Mangrove Jack's Heat Pad - 25 Watt SKU 55430 Original price $64.95 - Original price $64.95 Original price $64.95 $64.95 - $64.95 Current price $64.95 | / Quantity Add to cart Keep your brew at the right temperature during the colder times or during winter. Place glass or plastic fermenter on the top of the heat pad and turn on until brew reaches desired temperature and turn off when the brew gets too warm.