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Floor Layout
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I am currently getting quotes to add Split Ductless A/C to a Condo. The Condo has 2 Bedrooms and a total of 920 sq ft. I specified to each contractor that I want to cool the main area (kitchen, dining, and living) as well as the master bedroom. I've attached the layout which shows the master bedroom at the end of a hallway.

One contractor has suggested that because of how A/C works that a single 1.5 ton unit located in the main area will cool the entire Condo. He says the entire Condo is like a tub being filled with water. The cool/dry air produced by the A/C unit will drop to the lowest level and spread throughout the Condo and gradually fill up all rooms including the bedrooms down the hall. He says that if we leave all the doors open and run the a/c all day while we are at work, we will come home to a completely cool Condo.

This is a very attractive if true, because his proposal rates to be the least expensive. Others so far seem to be quite worried about cooling the entire Condo. One has even recommended two inside units (one in main area, and one in master bedroom).

Does the "filling a tub" analogy hold water?? :-)Can you please evaluate this proposal for effectiveness?

Answer
Doug,
I don't know what your Condo's exposure is for all the areas, above the ceiling ,below the floor, windows, outside walls, etc.?
I think if you leave the AC running all day when you come home home from work it's going to be cold, cool, and some what cooler in different areas, you may have a cool master bed room but need to have your long underwear on in the main area?

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Jim Barnhart

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Answer questions about , residential and commercial. Answer questions about sheet metal fabrication. Fifty years plus experience. No answers for oil equipment, No answers for kitchen appliances, No answers for laundry appliances, I don't specialize in one particular area of the HVAC area, I'm more of a General Practitioner, Limited in refrigeration/

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