I've one for 3 years now and have no problems with it. So far i am very satisfied with it.
Air conditioners
Portable AC units, window AC units and central air all has their pros and cons. But to compare a portable ac unit to central air is comparing apples to oranges. Similar in the fact they deliver cool air but ac unit does a complete home whereas a portable ac unit only cools a single room. The price therefore must be based on how many portable ac units it would take to cool a whole house.
The coil are responsible for transferring of cool air trough the unit
Yes,to a certain degree.
yes
There are many places where one can purchase heating and air conditioning units. Some of the places where they can be purchased are Amazon, AC Direct, Trane, and York.
Yes it is possible but not a good idea. If you were to put an ac in an enclosed room, it would not be able to draw in enough fresh air to justify the cost to cool the air. If you had some sort of way to duct the cold air to the inside and keep the aC outside would be better. Large AC units are often times installed in attics atop fau's 9heater blower units).
New central ac units come precharged from the factory.
i think 10 years ago after it was sold to fijitsu
Lowes is a great place to buy air conditioners. They have a large selection of units available. They have a lot of cool ac units to pick from and are pretty cheap too.
You would have to address that query to Trane. -I see many different air conditioners in mobiles, roof units, window units and outside ground based units, so obviously many AC's are approved.
Approx 2 units per hour 3 star ac