How Can I Install Air Conditioning Without Ductwork?

How Can I Install Air Conditioning Without Ductwork?

ductless air conditioning installation










The ductless mini-split is the perfect solution for Dublin homeowners with no ductwork. The cost of putting ductwork into a home not originally designed for it is prohibitive—it just doesn’t make sense. Still, a cool, air conditioned home is essential here in the California summer climate. Luckily, a properly installed ductless mini-split system will keep your house just as cool as it would be with a traditional ducted AC system, and you’ll save energy and money.

Ductless Mini-Split Advantages

  • Energy efficiency: Forced-air (ducted) cooling systems can experience significant energy loss through the ducts running throughout the home. Dublin homeowners can expect lower energy bills with ductless mini-split units.
  • Ideal for zoned cooling: Zoning allows you to cool only the rooms you’re using at any given time, which means you save energy and money without compromising comfort.
  • Increased air quality: Ductless systems are filtered, which decreases dust and airborne allergens in your Dublin area home.
  • Enhanced home safety: Window AC units can provide entry points for burglary. The only wall opening needed for a mini-split is roughly 3″ wide, for the connecting conduit to pass through.
  • Quiet and compact: The AC component that makes noise is located outside your home. The small, compact indoor unit can be located out of sight inside the rooms of your house, located high on the wall, for example.
  • Easy installation: Professional mini-split installation is simple and quick.

How Your Mini-Split is Installed

A variety of easy installation and set-up options are another set of advantages you’ll enjoy with a mini-split system. Professional installers will ensure that you have the right number of indoor AC units connected to a single outdoor unit.

Each indoor unit cools one room or zone of the house. Choose from location options like ceiling mounted (flush or suspended), wall mounted or floor-standing indoor units that run quietly and take up little-to-no room space.

Indoor and outdoor mini-split components are connected by a conduit that passes through a tiny opening in your wall. Running through the conduit are power wiring, refrigerant lines and a condensate drain tube.

Get Expert Mini-Split Installation in Dublin, CA

Contact Moore Mechanical for ductless mini-split installation. We also serve the communities of Concord, Alameda, Fremont, Berkeley, Hayward, Livermore, Brentwood, Pleasanton, Walnut Creek and surrounding areas. Call us at 925-307-6479 today!

5 Reasons to Clean Your Ducts Before Summer

5 Reasons to Clean Your Ducts Before Summer

With summer upon us, Moore Mechanical Heating & Air Conditioning is busy as can be and loving every minute of it! Why so busy, you ask? Because many of our long-time clients are getting the duct cleaning service they know their system needs in order to operate at its best. Not familiar with the perks of a spring/summer duct cleaning? Our experts would be happy to clue you in! Continue reading “5 Reasons to Clean Your Ducts Before Summer” »

What is a Ductless Mini Split?

What is a Ductless Mini Split?

minisplit_setWhy a Mini-Split?

Ductless mini split heat pumps make a good retrofit add on to any “non-ducted” home heating systems such as hydronic (hot water heat), radiant panels and space heaters (wood, kerosene or propane). They can also be a good choice for room additions where extending or installing ductwork is not possible.

Like standard air source heat pumps, mini splits have two main components, an outdoor compressor/condenser and an indoor air unit. A conduit, which houses the power cable, refrigerant tubing, suction tubing and condensation drain, links the outdoor and indoor units.

minisplit_diagramHow They Work

Like standard air source heat pumps, mini splits have two main components, an outdoor compressor/condenser and an indoor air unit. A conduit, which houses the power cable, refrigerant tubing, suction tubing and condensation drain, links the outdoor and indoor units.



The main advantages of mini splits are their small size and flexibility for zoning or heating and cooling individual rooms. Many models can have as many as four indoor air handling units (for four zones or rooms) connected to one outdoor unit. The number depends on how much heating or cooling is required for the building or each zone (which in turn is affected by how well the building is insulated). Since each of the zones will have its own thermostat, you only need to condition that place when someone is there. This will save energy and money.

minisplit_photoDuctless mini split systems are often easier to install than other types of space conditioning systems. For example, the hook-up between the outdoor and indoor units generally requires only a three-inch hole through a wall for the conduit. Also, most manufacturers can provide a variety of lengths of connecting conduits which means, if necessary, you can locate the outdoor unit as far away as 50 feet from the indoor evaporator. This makes it possible to cool rooms on the front side of a building or home with the compressor in a more advantageous or inconspicuous place on the outside.

Since mini splits have no ducts, they avoid the energy losses associated with ductwork of central forced air systems. Leaking ductwork can account for more than 30% of energy consumption for space conditioning, especially if the ducts are in an unconditioned space such as an attic.

In comparison to other add-on systems, mini splits offer more flexibility in interior design options. The indoor units can be suspended from a ceiling, mounted flush into a drop ceiling, or hung on a wall. Floor-standing models are also available. Most indoor units have profiles of about seven inches deep and usually come with sleek, high tech looking jackets. Many also offer a remote control to make it easier to turn the system on and off when it’s positioned high on a wall or suspended from a ceiling.

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The information on this website is for informational purposes only; it is deemed accurate but not guaranteed. It does not constitute professional advice. All information is subject to change at any time without notice. Contact us for complete details.