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  • There are 2 sections to an air conditioning system:
  • The outdoor section, AKA the condensing unit, also commonly referred to as the compressor.


  • The indoor section – The fan coil. AKA the air handler. In a typical retrofit installation, this goes in the attic, along with the bulk of the duct work. It usually takes up about 1/3 of the attic. We try to tuck everything in the eaves as much as possible.

                    attic fan coil complete.JPG

  • The fan coil in the attic goes in a plastic tray, just in case the drain ever plugs and overflows. We put a float safety switch in the pan that shuts down the entire system if it senses water. This saves your ceiling.

pan trailer (2).jpg

  • The fan coil does not vibrate or make any noise. We set it on rubber feet anyway, but if it vibrates, it’s broken. We will fix it. [link to warranty]
  • The supply registers (where the cold air comes out) go in the ceiling. One for each of the 3 bedrooms, 1 in the kitchen, 1 in the dining room, 2 in the living room. No registers in the bathrooms. (Humidity from your shower just sits in the duct in winter since the system doesn’t run. It tends to grow mold. I don’t recommend it.) When we cut the holes, one guy holds a box pressed up against the ceiling, another guy saws the hole from up above. Nice and clean, no dust. cutting hole in attic2.JPG

holding box.JPG

  • The registers are white vinyl, just like a vinyl window. They never yellow or leak into the attic. They are molded in one piece.mv3 installation (2).jpg
  • The supply registers are connected to the supply plenum (the silver box in the picture) with flexible ducts. The flex duct is smooth Mylar on the inside with a wire reinforcement to retain shape. They are covered in R-8 insulation (about 3” thick)

attic fancoil end view2.JPG

  • The supply plenum is galvanized steel, with acoustical liner on the inside for insulation and sound deadening.
  • The return register goes in the hall way ceiling. Warm air rises, cold air sinks. This is where all of the hot air from the house gets trapped. That is why the return goes here. It pulls in all of that stuffy air, cools it, and sends it for another trip around.return centered.JPG

return centered open.JPG

  • A typical return register is 30” x 30”. This is also where you change the filter. No need to crawl up in the attic. One filter change a year is typical, unless you have shedding pets.
  • If you already have a whole house fan and don’t plan to use it anymore, we can pull it and utilize the hole. If the fan is non standard size, we can trim it with wood, no extra charge.
  • The entire job takes 1 day for the typical ranch or raised ranch style house.


How Much Does it Cost?

$8,000.00 - Price includes:

  • 13 SEER, 2 ton HEIL N4A324 air conditioner
  • 7 supply registers
  • 1 central return register
  • Programmable thermostat and all wiring
  • A full case of filters
  • Sales tax
  • 10 year parts and labor warranty
  • 100% satisfaction guarantee or your money back


  • Increase to next size larger system - $300 
  • Add an extra supply register - $200
  • Upgrade to a 16 SEER 2 STAGE HEIL H4A6/8 system with ENERGY STAR rating, qualifies for Federal tax credit - $1,600




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