QUOTE (evans181 @ Jun 18 2009, 04:42 PM)

What wattage is it? I use a 15w heat mat and i place the 2L jug with the brewing essence in a bucket with water in it and put the mat under that, but it dont really do that much but i just add a little hot water to the bucket every couple of hours and that takes the temp back up a bit but you really need to monitor it in some way, its very easy to take the temp to high.
E2a:- you need to wbe careful with the heat mats to as when it bubbles over which it always does and the moisture gets on the mat it can cause it to short, i'm sure it was rand from over the pond that it happened to
sorry i should have explained it a little better
its only a 7 watt heat mat
ive got the brew in a wide glass bowl, when i lift the bowl, the bottom of it feels warm
but if the water feels cool i will add a bit from the kettle to bring the temp up, without over doing it
and the bubbles, could i not scoop the foam off when it gets towards the top of the bowl, then let it carry on brewing????