The UK standard 25 watts heat belt will gentle warmth without creating a hot spot. Heating belts are preferable to heating pads for the reasons that they can simply be moved up or down the fermenter to increase or decrease the heat transfer to the brew. Heating belts are also preferable to heating pads because pads tend to heat up the yeast bed on the bottom of the fermenter which can produce some undesirable flavours in your beer.And you can get a bonus digital stick on thermometer. Please be advised that the heating belt is only 25 watt power and it will normally warm the fermeter in the cold weather and keep the wort in a desirable temperature. However, based on the fact that different fermentation temperature range for different fermentation, you need to check the temperature sticker regularly to make sure it is correct for the fermentation( you may need to raise or lower the heating belt). To achieve the best result and maintain the temperature accurately. It is recommended to use a temperature controller with the heating belt. 

1.The Heat Belt can be used to aid fermentation with one or two demijohns or any make of 5 Gallon/25 Litre vessel and is suitable for both beer, spirits and wine making.
          2.The Heat Belt is designed to be used during primary fermentation and to aid the start of secondary fermentation.
          3. One of the main benefits of using a Brew Belt is the reduced time it takes to complete the brewing process of your beer and wine.
          4.The heat can be regulated by moving the Brew Belt higher or lower on the vessel.

 Features:
          1. Keep your yeasties snug and warm with this simple to use heat belt.
          2.This is a heating belt that goes round your keg or other fermenter to keep it warm so your yeast ferments at its preferred temperature.
          3. Gives you a quicker, more complete fermentation.
          4. Easy to store away after use unlike heat pads.

Specification
          1.Length:900 mm(for the belt)
          2.Power :220V-250V /25w Square 3-Pin UK Plug
          3.Weight:0.2kg
          4.Color:Blue
          5.Fits 25 to 60 litre fermenters

Bonus:
   1 x digital stick on thermometer.