See, this is the thing... I really have no desire to have a typical 3 tier system with SS kettles. Why? I absolutely love heating the water ONCE and then putting the lid on the cooler and letting it mash. I love the insulating properties of the 10 gallon beverage coolers, I love the ease of mashing, I love how efficient (gas) it is. I simply heat my strike and infusion water, let it mash, heat my sparge water, cap it off, then sparge and the temps remail all but constant without any additional heat. It seems much more hands off and efficient, I never have to watch my temps really. The new coolers will have through the wall thermometers too in order to easily monitor what is going on in a basically sealed system.