Air conditioner Advice

JDB · Jan 18, 2009

I know this is off topic and off season.
The previous owner of our house built it with the intention that the upper story be heated and cooled by a system separate from the rest of the house. The upper story is one big room 39' x 15' with 9' ceiling that we use as a tv / game room. It is well insulated and 2 1500 watt 220 volt baseboard heaters take care of it with ease. I am thinking about a cooling only air handler unit and ducting. How many ton air conditioner do I need? I live just south of Omaha Nebraska. We sometimes get over 100 in the summer. Just last week we got to -15 and the heaters kept up easy and ran very little to give you some idea of the insulation. I was told it would take 2 ductless mini's but I think an air handler would be cheaper. Appreciate your advice guys.

HENRY E NC · Jan 18, 2009

As a rule of thumb and not being able to know windows , insulation etc, I would figure on a 1 1/2 ton AC unit. Basically, one ton for every five hundred square feet for 8 foot ceilings. Add a window or two and give or take a little you wont go wrong with 1 1/2 ton. Do you plan on having someone do it or will you install by yourself. I would think the price will be high. You might consider the mini's. I can see you paying 2500 to 3000 for a cheap job or up to 400 for an expensive job.
I am doing some installation now in our church and the 1 1/2 unit is going to cost about 1500 dollars at my cost. No overhead or profit figured in. Plus Wiring. 3 small RA's and 4 supply ducts and registers plus thermostat. Linesets are very expensive also. Freon needed if over 25 foot run at 6-9 dollars a pound(R-22). Henry

HENRY E NC · Jan 19, 2009

one more thing I forgot. Plan on using 2 or preferably 3 ceiling fans to stir the air up and keep it evenly distributed. That is a big room and heating /cooling will probably have warm or cold spots. Henry

JDB · Jan 19, 2009

My dad was an HVAC man. I know enough to be dangerous working on furnaces and stuff on the side. Thought I would install it myself and have local HVAC man start it up and check freon.

HENRY E NC · Jan 19, 2009

New units now come with enough freon for 25 foot run. Supposedly only people with a valid freon card can buy a condenser. The rest of it is easy. Need any help email me at [email protected]. Glad to help. Henry

HENRY E NC · Jan 19, 2009

Send me an email and I will tell you what that unit would cost wholesale so you get a fair price Henry

Air conditioner Advice

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JDB

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