letting all of my 100-500 heaters go blasting full bore all the timel.
Oops, I meant 100-500 WATT heaters, there's only a couple dozen...not 100-500. lol
I have nice fitting lids on all my tanks and my heaters could easily handle the load but I like to come home from working outside all day and feed my fish in my warm, comfy, cozy little fish room as well.
Gives you that "Good to be home feeling".