We have two buildings on our property with mini split heat pumps. Both are very quiet. They can be a bit noisy indoors if you turn the fan above the medium setting. It’s basically silent on the low fan setting. Low is plenty for both heating and cooling.
Do you have a heat pump? Is it noisy?
Riffing off the earlier post about heat pumps in cold weather (lemmy.world/post/10270502), how much noise does your heat pump make?...