BrewnWKopperKat
(Ο_Ο)
And what you wrote so far is seems like a lot of effort for a new brewer.That's about as much as I want to get in to it. I could write a full blown example just don't have the time right now.
"Stove top" brewing (half water / extract at start, the rest at the end) offers new brewers the opportunity to try out home brewing using existing kitchen equipment. So it's a good starting point. And for many styles (lower ABV, lower IBU) it can make a good beer. Recipes exist for this process (see How to Brew, 4e), so there's no need for adjustments.
Higher ABV (or IBU) styles typically require a larger kettle (and heat source) for a full volume boil.
Based on what I'm seeing, "boiling as much water as you can" seems to add a lot of complexity (recipe adjustments, additional ingredients, ...) that may not be helpful to a new brewer.