I'll recheck the sums but the massive wok ring on my cooker took about the same time to get 18 litres of wort to boiling from sparge temp as it does to get 30 litres of wort in my electric boiler (with one element only!). To keep a rolling boil I found I needed to have the gas on quite high, I wonder if it would even boil 30 litres properly? I forget what the unit cost of gas is but I find it hard to believe that it's cheaper than the 85p or something I worked out it costing to run the electric boiler and HLT on a brewday.boingy wrote:Yash, are you sure that boiling in an indoor electric boiler is cheaper for energy than an indoor gas cooker (assuming the gas is mains gas)?
I've no doubt that using bottled calor gas is more expensive and anyone boiling outdoors will be wasting lots of heat energy but I'm pretty sure my energy costs have decreased since I switched to a big pot on the gas cooker.
)
Just need the fecking mashtun/boiler from Brewgenie now. 
