I know my way of doing it may not be what you're asking about but here is my method of mixing a tote (the 550 gal things) of feed. I fill it with water then use a boat trolling motor to mix it as I add the sugar, pollen sub, and whatever. No augers, homemade gadgets, or anything else and I can use the motor on the boat fishing too. I don't have any heated water but here in Ga it don't get that cold. So I've never thought I needed the heat to help dissolve the sugar like maybe needed in colder places. I used to use a sheet rock mud mixing thing on a bigger drill but the motor just seemed to work better for me.