Ductless Air Conditioners Saint John NB

If you’re interested in balancing your personal comfort level with the need to conserve energy and reduce greenhouse gas emissions, then ductless, mini-split air conditioners are worth a look. And in the fight against mold-free shoes, it might just be your best weapon.

SRM Residential HVAC
(506) 832-2280
89 Acadia Crest
Selkirk , NB
Wilson J E Roofing Co Ltd
(506) 635-1401
Saint John, NB
Trane Atlantic
(506) 633-2300
70 Crown St
Saint John, NB
Reid Refrigeration Services
(506) 387-3998
Moncton, NB
Jonic Ventilation Inc
(506) 576-9099
Cocagne, NB
Ultra Air Conditioning Ltd
(506) 386-9010
12 Coronation Dr
Winnipeg , NB
Trane Atlantic
(506) 633-2310
Saint John, NB
Grondin Ventilation
(506) 735-4181
Edmundston, NB
Caissie G L Ltd
(506) 523-4010
Richibucto, NB
Charlotte County Refrigeration Ltd
(506) 456-3189
Blacks Harbour, NB

Ductless Air Conditioners

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Ductless Air Conditioners

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I’ve always been a stickler for energy conservation by elimination. You can’t squander energy on appliances you don’t own, and for me that conviction naturally extended to air conditioning. No cooling system in the house for us, no air conditioning in the cars. What’s a little seasonal discomfort in the name of ecological preservation, right?

I clung firmly to this ideal until a hot afternoon in August 2001. That’s when my mind changed as I was getting ready to attend a wedding.

We’d already endured several weeks of dripping-hot weather, and the outdoor afternoon ceremony promised to deliver more of the same. And as I reached into a closet for my black dress shoes just before jumping into our sweltering van and taking off, I was greeted by a fuzzy, white mess. There, growing out of the seams between the rubber soles and leather uppers on my best shoes, were luxuriant wisps of substantial and alarming white mold. A lot of it, too. The combination of high heat and prolonged humidity had won, and at that moment, I had to admit defeat. My mind changed. Once your clothes start to rot, you know you’ve taken your energy conservation ideals too far.

Spectrum of Air Conditioning Options

Thirty years ago the newest thing in home comfort was the window air conditioner. Then came central air, with its promise of whole house cooling at the price of higher-than-winter electricity bills. And while both these options do have their place today, there’s a relatively unknown third choice, one that offers unique advantages especially well suited to the newfound energy conservation ethic here in Canada.

The little-known approach I’m talking about is generically called ductless, mini-split air conditioners, and to understand where it fits into the spectrum of air conditioning options, you need to see the big picture.

  • Window air conditioners are the motor scooters of the air-cooling world
  • Central air is a honking-big SUV with an 8-cylinder Cummins diesel.
  • Between these two extremes you’ll find the frugal yet effective ductless mini-splits. Ductless mini-split air conditioners are like an energy efficient, four-cylinder sedan, though the advantages of this technology extend beyond just reducing household energy costs.

Ductless mini-splits separate the compressor side of the system (the part that produces cooling temperatures), from the delivery system that directs it into the house. And while this may not seem all that significant, it has several important consequences.

  • Ductless Homes
  • Energy Efficiency
  • Cost
  • Air Filtration

Ductless Homes

First of all ductless mini-splits deliver whole-house cooling and dehumidification in homes built without ducts.

  • A heritage home, constructed before the days of central anything.
  • A brand new place heated with electric baseboard heaters.

Either way, before mini-splits came along, the only option for places like these was localized cooling via a window air conditioner.

Energy Efficiency

Another advantage of the mini-split option is its energy efficiency.

  • Since the system delivers cool air via louvered, wall-mounted units, there are no energy losses due to leaky sheet metal ducts that need to be cooled down before any comfort gets delivered to your surroundings.
  • According to the U.S. Department of Energy, the average sheet metal duct system wastes 25% to 40% of the output of the furnace, central air conditioner or heat pump that’s connected to it.
  • By comparison, there’s typically only a 5% loss between the outdoor compressor and the indoor air handling wall unit of a ductless air conditioner.


Despite the advantages, ductless mini-split systems aren’t perfect. For one thing they cost significantly more per Btu of cooling action than competing technologies.

  • You’ll pay about 30% more for a mini-split than a central air system of the same size, excluding the installation of ducting.
  • Another issue involves installation and service. While it’s true that just about anyone can put in a window air conditioner, not so with mini-splits. Installation involves securely mounting the compressor outdoors (usually on a wall), then running dual lines through the wall where they connect to one, two or three separate indoor air handling units. Only after all this happens can the system be charged with refrigerant by a technician and switched on.
  • Through the use of multiple indoor air-handling units, ductless mini-splits allow zone cooling of your home, a refinement that can slash electricity costs by more than 50% without interfering with your comfort level. Cool only the bedrooms at night, then only the kitchen and living room during the day. And since the cool air is delivered up high on the wall (air handling units are designed to be mounted just inches below the ceiling), you avoid the dreaded cold-floor syndrome that central air is famous for. And since the temperature of the air leaving these high-mounted louvers is typically 5C to 10C, it can cool down a hot room very quickly once you switch the system on.

Air Filtration

The latest ductless mini-splits also offer:

  • Air filtration, dehumidification without cooling (for those damp days that aren’t very hot)
  • Auto-oscillating louvers that distribute cool air evenly.
  • Some can even be operated as heat pumps to warm your home during cool weather.

If you’re interested in balancing your personal comfort level with the need to conserve energy and reduce greenhouse gas emissions, then ductless, mini-split air conditioners are worth a look. And in the fight against mold-free shoes, it might just be your best weapon.

Read more articles from casaGURU.com.