Re: Proper use of a heated bottling tank and choosing right size?
I also thought about the smaller vs bigger tank not only for the reasons you stated but for energy loose and consumption. You can always get a bigger tank and half fill it. I decided to go with the 25gal Maxant tank, works for me. It's a good size if you plan on bottling all your warm honey at once. I supply 7 of the major grocery stores here with 4 different size bottles.
The bitterness of poor quality is remembered long after the sweetness of low price has faded from memory.