My "calculations" (random guess, based on hope) were off. room is 20'x28' with 9' ceilings. (6m x 8.5m x 2.75m for the commies out there) I purchased & installed a 12,000BTU mini-split. it simply does not keep up. it ranges from 90° to 110° outdoors (32° to 43° for the commies) in the hot months. during that time, unit runs compressor 24/7 but seldom gets under 76°F. that's a fine temperature to us, but it only achieves it overnight. daytime is 78°-79°F.

we can manage at these temperatures. we are rural farmer-types, so we're not total pussies. my question is whether or not running our mini, balls-out, day & night will destroy it?

we have ceiling fans on 24/7 and our house is open cell spray foam insulation with zip board and zip tape, 2023 construction.

I plan to replace the unit with a 18000BTU unit, but that will take some time to save up. Grok reccomended a Panasonic but it shows discontinued. told it that, then it reccomeded a Mitsubishi, which also showed discontinued.

I told Grok: primary concern is energy efficiency, as we have a solar power system and we want to be able to *fully* support cooling during Grid outages.

what do?

>>2926648 (OP)
>whether running our mini, balls-out, day & night will destroy it
No, it's designed to manage itself. Of course it will, in the long run, only go up to whatever amount of total running hours it was designed to achieve, more or less, but it shouldn't fail prematurely.
>6m x 8.5m x 2.75m , 12k BTU unit
That seems weird that it can't keep up, do you have huge windows or very poor insulation or air drafts? I have a similar sized room and while we only get around 35C on average summer days, my similarly sized, fairly old AC could easily keep the room under 24C/76F. Does the outdoor unit have good airflow around it?
>Grok recommended
Grok doesn't really know about specific brands and specific units, don't rely on it for this kind of stuff, just general principles.
>primary concern is energy efficiency
Most you can do is an AC with inverter that can manage loading better, but most air-to-air heat pumps have roughly the same efficiency. You can do better with air-water or ground-water heat pumps or just ground-source heat dumping without a heat pump, but these systems are all considerably more expensive than a regular split AC.
Assuming your current AC is set up right, I'd look into reducing heat gain. Insulate your roof if it's not insulated, put some over the windows, maybe don't run a buttcoin mining rig in the room.
But since there's a fuckton of sun in the summer, it should be easy to support cooling with mid-sized residential systems.

>>2926656
>put some
Put something over the windows*; from the outside that is.

>>2926656

> From Grok: measuring 28' x 19' with two hallways (3.5' x 6' and 7' x 4'), totaling 581 square feet with 9' ceilings. Based on our prior conversation, you need approximately 18,200–21,500 BTU to cool this space effectively, given the hot climate, kitchen heat load, and insulation.

house is sealed up tight and insulated well. roof insulated open cell on underside of decking. housewife bakes bread and cooks 2 to 3 meals per day. today is one of the coolest days we have had in a while. overnight it was 70° outside, 76° inside with the unit set to 75°. daytime temperature is expected to top out at 90°. the only real heat generator we have (aside from her cooking) is her 75" Samsung TV. no computers, no game consoles, no incandescent bulbs.

regardless, you answered my primary; the unit will not be damaged running its ass off. we'll survive. we should be able to buy & install the new 18,000 BTU unit before summer 2026. we will move the 12000 unit out to her 14'×17' rabbit barn once construction is complete. that is the secondary driving factor in our upgrade.

>>2926648 (OP)
>20'x28' with 9' ceilings
Somethinga fucky, it should be able to keep up.
You either have huge leaks, no insulation or your mini split is retarded and not running at full power.
I have a midea I had to mess with to let it run at full power so google your model

>>2926648 (OP)
If the temperature differential across the evaporator coil is less than 25-30f with the fan on high (max rate cooling) you are almost certainly low on charge bucko. This is kind of hack but if you take superheat by the outdoor unit you should have like 5f or less, at least for the non temu brand ones I’ve worked on.

>>2926648 (OP)
>not pussy
>uses A/C
kek

>>2926648 (OP)
>12k BTUs for ~5k cubic feet
Yeah that's slightly low and if it is fighting that much heat from outside I believe it. Make sure everything that can be insulated is.
>Will it destroy it
Lol no it's just a compressor dude