Keeping cool without the ductwork hassle

Yeah, I hear you on the plaster - some of those old walls are like a box of chocolates, never know what you’ll get. I’ve had to chase cracks across a whole room just because I poked too hard in one spot. But you’re right, taking your time with the framing and prep work is where it pays off. I’ve rushed that step before and ended up redoing half the job. It’s not flashy, but man, it saves headaches down the line.

Yeah, I hear you on the plaster - some of those old walls are like a box of chocolates, never know what you’ll get. I’ve had to chase cracks across a whole room just because I poked too hard in one spot.

That’s exactly why I try to avoid cutting into old plaster unless there’s no other choice. Chasing cracks is a nightmare, and patching always looks off unless you’re really careful. For cooling, if you’re dealing with these kinds of walls and don’t want to mess with ductwork, mini-splits are usually the least invasive solution. They only need a small hole for the line set, so you’re not risking half your wall turning into a patch job.

I get that some folks don’t love the look of the indoor units, but honestly, it beats tearing up the house or running ugly surface ducts. Plus, they’re pretty efficient and let you control temps room by room. If aesthetics matter, there are ceiling cassette options now that blend in better.

One thing I’d watch for: make sure whoever installs it knows how to seal up the wall penetrations right. Seen some real botched jobs where moisture got in and ruined the plaster anyway... kind of defeats the point.

If you want something even less intrusive, portable ACs or window units work in a pinch, but you lose efficiency and they’re not great for old windows either - tend to rattle around and mess with the sashes.

Bottom line: slow and steady like you said with prep work, but when it comes to cooling these old places without ducts, less is more. Mini-splits save walls and headaches both.

Honestly, I’ve seen mini-splits add real value to older properties, especially when you’re trying to keep the original plaster intact. I get the hesitation about the look, but compared to the cost and hassle of repairing cracked walls or retrofitting ducts, it’s a no-brainer. I’d just add - don’t cheap out on the installer. A bad seal or sloppy line set can lead to way bigger headaches down the line. Seen it too many times… nothing kills resale faster than water stains or botched patch jobs.

I get the appeal, but honestly, I can’t get past how mini-splits look hanging on the wall. Maybe I’m picky, but in a 1920s house, it just feels out of place. I’d rather deal with a couple window units than have those boxes staring at me year-round. Just my two cents...

- Totally get where you’re coming from - those mini-splits can look a bit out of place, especially with all the original trim and details in older homes.
- I worked on a 1930s bungalow last year, and the owners were dead set against anything “modern” on the walls. We ended up tucking the indoor units above doorways and painting the casings to match the wall color. It helped them blend in, but yeah, you still know they’re there.
- Window units are less permanent, but I always find them noisy and kind of a pain to install every summer. Guess it’s just picking your battles... aesthetics vs. convenience.