Hello,

Same project as BillTrust Ductless Air Conditioning from earlier today.

We are currently residing our home, but have not picked the AC unit yet. Can we run a chase in one of the bays from the top floor down now to make snaking the hose, wires, etc possible and easy later and allow us to Tyvek and side now? And, if so, are there certain types of product that must be used? PVC, Dimensions etc?

Thanks!:D

Some of your question will be hard for anyone to answer without looking at the home. In order to size the proper system for your home someone will need to know how much insulation you have, how many windows, how much sun light - shade does it get at what time of the days. They will also need to know what kind of heat loads will be operating in your home, such as ovens, stoves, computers, etc.

I've installed hundreds of mitsubishi ductless units and haven't had hardly any call back problems except for the normal issues. I'm not saying they're the best but I like them.

The most important thing to consider is the installation of your new unit. That's probably more important than the brand you pick. A good installer will run all the tubing without damaging it, insulate both lines if specified , leak check the system and pull a good vacuum of the system before charging it. When adding the refrigerant it's important to follow the manufactures specifications for the unit you are installing. He should be checking the superheat recommendation, too much or not enough refrigerant will damage or shorten the life of your new system. I can't stress enough how important it is to have a qualified technician install your system.

Most installers will need to have room to run copper tubing from the outside unit to each inside unit. These sizes can range from 1/4" up to a 7/8" in size and they will need to install insulation over the tubing. The insulation is usually has a wall thickness of 1/2".

I hope I answered most of your questions.

Good answer jackt, I totally agree!