[Shop-talk] Fwd: mini-split or window unit ?

[David Scheidt]

> On Apr 22, 2021, at 15:29, Arvid <arvidj999 at gmail.com> wrote:
> 
> I don't think anyone ships pre-sealed lines like Sears provided with their DIY Whole Home AC units that I installed in the house 35 years ago. Dean (THE HVAC GUY) replaced that unit about 25 years ago when the condenser stated leaking.

That’s what the mr cool linsets are, and the attraction of them.  The limita  there is the lines will be too long.  That reduces efficiency, depending on how much excess there is, and where it is. If it is out side, it will absorb heat (or lose it, when heating) there’s also pumping losses, which can be substantial. Cutting lines to length let’s you avoid that, and adjust the charge for line length. ( The pecharge
Is for a given length of line. Longer, you add, shorter, you subtract). 

It’s not a huge problem, but one to consider.