Hi, I have been home brewing for about 5 years and now the house is almost completely renovated the wife is evicting the brewing from the house. However she has let me build a 7m x 3m building in the garden, so obviously I'm planning on upscaling what I am doing. The only thing I can't decide is how to control my fermentation temperatures. I will initially have 4no 220l plastic conical tanks. They will be in a seperate room within the building which has 150mm of insulation board on all walls, ceiling and floor. Obviously purely controlling the room temperature won't work as the tanks will be at different stages of fermentation. I am only brewing ales so no need to get as low as lager Temps. So do I therfore keep the room heated and use some sort of glycol chiller to chill the tanks individually. Or use an aircon unit to keep the room very cold and then have individual heat to each tank? Which is the best way to go and can you recommend any products to do this? Thanks in advance for your help