Heater Pad (Brew Cellar/ Morgans Brand ) Ideal for fermentation of Beer, Wine & Wash, this is a high quality plastic heat pad. 25 Watts 3 year replacement warranty. This Heater pad is designed for winter brewing, or for brewing in colder climates. Located underneath your fermenter, this low profile Morgan’s heater pad will prevent your brew from stalling due to temperature drop during fermentation. Best used in conjunction with a Temp Controller.