Feel free to use technical terms with me, I actually have fairly extensive non-residential HVAC knowledge for a non-pro. (Liebert and Daikin mostly, so you know how and why.) Which is how I know I have a really, nastily difficult layout.
Late 60's split-level in Ohio zone 5 marine, no ducting, hot water heat, and it's brick. I'm trying to cool part of the bottom floor. Stairs and foyer are wide open, so whole house is right out. New wire runs are right out because it'd require ripping out ceilings and drilling structural.
"So put in a window unit!" Problem: it's all casement windows except the room that's open to the stairwell and foyer or the utility room with the furnace and hot water. (Which is right out; it'd suck up 20,000BTU/hr to maintain 80F.) Noise and circuit load are significant concerns; the nearest 20A is loaded. Which leaves a very lightly loaded GFCI'd 20A available - outside - and a lightly loaded 15A. And one of the rooms is my office.
So what I'm looking for is to maintain around 75-80F @ 85F outside across a total of about 500sqft with an additional load of 2700BTU/hr. The sliders have a max opening of 17". Any recommendations you all can provide? How much of a nightmare would ductless be to install with the pipe having to take a minimum 90 foot run? Specific models would definitely be helpful too, because I've had no luck finding any window units aside from the Frigidaire FFRS1222Q1.
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