The FERMENTEMP H2 from EINBREW, home brew heater, controls the heat in your fermentation, this one uses the new 24Vdc heating element, it has the new controller and display and has an internal thermal cut-out.  Also known as a wine heater or a beer heater.

The new model, measures and displays homebrew fermentation temperature and the ambient temperature.  It also records the lowest and highest temperatures it has seen during the fermentation, for both brew and ambient. The fermentemp times your fermentation in hours, so when you take SG readings, you can list the time in hours since the start of fermentation. An audible alarm can be set to warn of under and over temperatures.


Product dimensions               340 x 345 x 70mm, 3kgs or 13” x 13.5” x 2.7”, 7lbs
Power supply input                120Vac/60Hz or 230Vac/50Hz both 50W
Power supply output              24Vdc/3A
Control precision                    +/-0.1C, +/-0.1F
Controller heating range         Generally from ambient to +10C or +20F
Heating elements                   50W, resistor element

Timer units and accuracy        Whole hours, accurate to 1%Audible
temperature alarm                   Approximately 80dB +/-3dB @ 10cmMaintaining


Maintaining the correct temperature during primary and secondary fermentation is a fundamental of brewing and is impossible without automatic control, FERMENTEMP solves that problem. Too low and yeast becomes dormant and fermentation stalls, too high and solvent tasting fusel alcohols are produced.

Without FERMENTEMP it’s too cold in winter for brewing in garages and basements. FERMENTEMP is an active heater, so can control to set temperatures above ambient. Competitive products do not actively control the temperature, they simply add heat constantly, so the brew temperature will still fluctuate considerably with ambient, during the day too high, at night too low — brewing should be relaxing, relax with FERMENTEMP.