Daikin Ductless Mini Split – A Personal Testimonial

Posted: January 14, 2015 in Uncategorized

Hello again from the Comfort Crew!

I have been writing blogs for the Comfort Crew for the past couple of years, and wanted to drop the 3rd-person narrative to share my personal experiences with my Daikin ductless mini-split system.

In case you aren’t aware of the technology, the ductless mini split system is a heat pump that, as its name implies, does not require any ductwork.  Rather than an air handler inside your home from which ductwork is connected, a ductless system has a wall-mounted unit that is a small air handler–air is conditioned and blown directly into the space in which it is installed.   The wall mounted units are around 30 inches long, 11 inches tall, and 8 inches deep.

Ductless systems utilize “inverter compressor” technology, which makes them extremely efficient.  What does this mean?  A standard compressor functions rather like a car that has a gas pedal which cannot be feathered–you would have two options–either floor the pedal or don’t have your foot on it at all.  Thus if you are trying to maintain 60 mph you would floor the gas to the desired speed, let of the gas, floor again to get back to speed, etc.  What ends up happening is you would go above and below the desired speed, and you would use a lot of gas.  That’s how a standard compressor functions to keep your desired temperature.  The inverter compressor functions like a normal gas pedal–it can feather its power to the desired temperature and hold as necessary.  This makes these units operate with a very high Seer rating, and overall power savings is immense.  One outdoor unit can control up to eight air handlers!

I live in a 1,000 sq. ft. bungalow, one level with unfinished attic and basement.  We have a floor grate oil furnace for heat and window units for air conditioning.  The options for a standard heat pump installation were limited, as there just isn’t any room for ductwork.  I finally decided on installing a Daikin ductless system, and we couldn’t be happier with the equipment!

We opted for two outdoor units, one on either side of the house.  Each controls two wall-mounted air handler units.  We could have gone with one 4-port system, but I didn’t want line sets (the copper lines that connect the indoor unit to the outdoor unit( wrapped all the way around the house.  We have air handlers in each of our two bedrooms, one in our living room and one in our kitchen (dining room sits between the living room and kitchen; a bathroom site between the two bedrooms and a small en suite bath comes off one of the bedrooms).  The setup has proven to perfectly condition the entire home.   Each air handler was installed above our windows–they only require about an inch  and a half clearance from the ceiling–while we could build a decorative valance around them, we don’t even notice that they are there.

The first  thing we noticed about our Daikin ductless system is the noise level–after listening to the jet plane noise of our oil furnace and the racket of our “window shakers,” the house became suddenly very, very quiet.   Try this–exhale while quietly whispering “wahhhhh.”   Both the indoor and outdoor units operate at about that level of noise.  They are virtually silent!

The second thing we noticed is that every square inch of our home had become comfortable–the floor grate furnace and window unit ACs were not able to condition the further reaches of our small home.  The areas around the units themselves would be extremely warm/cold, but the further corners of the home would be the opposite.  With the ductless systems, every room is a consistent, comfortable temperature.   These units keep airflow moving through the home even when it is not conditioning the air (utilizing fans that use less electricity than a light bulb).

The third thing we noticed was our power bill–it was either equal to or lower than what we were paying for systems that realistically only kept half our home comfortable!  The Daikin units have numerous power-saving features, such as an “econo mode” that’s perfect for keeping the home conditioned while on vacation; another setting is designed to slowly ramp down the cooling or heating while you are asleep at night, another neat option has an electric eye that recognizes movement in the room–if it senses there are people present it operates normally–if nobody is in the room it ramps down energy usage!

I could go on all day about these units, but let me just say that if you are considering a remodel or new construction and have limited space for ductwork (or if you just want a highly efficient system that’s virtually silent), consider the Dakin ductless.

For more info on the Daikin units, visit www.daikinac.com.

Comfort Heating & Cooling  will be happy tom come out and do a free estimate and assist in weighing your options (in the Fredericksburg VA area).  Give us a call at 540-373-8471, or email us contactus@comfortheatingandac.com with any questions!   Be sure to check out our DIY HVAC tips at www.comfortheatingandac.com.


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