FAQ - DUCTLESS AIR CONDITIONER / MINI SPLIT AIR CONDITIONER Is ductless air conditioner less expensive to run than a central air conditioner?
Yes, and substantially so for two main reasons
Efficiency of ductless air conditioners, dollar for dollar, is higher than central air conditioners
Zoning - you are heating or cooling only parts of the house that you are using at the time. It might be a home office at day time or only a bedroom at night. That’s a difference between conditioning of several hundred square feet and several thousands.
We, at Cozy World Inc, have installed multiple Mitsubishi ductless air conditioners and ductless heat pumps in the last 15 years. Never had a call back. Ductless air conditioners, when installed properly and maintained regularly, can have life expectancy 15-20 years.
How many Ductless / Mini Split Air Conditioners do I need for my home?
Ductless air conditioners are used for one room applications only. If you need to cool more than one room, we will be using and multi room heat pump. They do cooling in summer and reverse to heating in winter.
Most likely one outdoor unit with several indoor units will suffice. This type of units are called multi zone heat pump, or multi zone mini split heat pump, or multi room heat pump.
How Loud are Ductless Air Conditioners?
Actually, ductless air conditioners are more quiet than traditional air conditioning units. The exact amount of DB varies from model to model. But with any ductless air conditioner unit you can whisper talk next to the outdoor unit. Indoor units are quiet even by bedroom or library standards.
Are ductless air conditioners more energy efficient than central air conditioning systems?
Yes, they are substantially more efficient than central air units for two main reasons.
More advanced technology since most of the mini splits are also being used for heating as well as heat pumps.
Cooling being delivered only to the point of use - rooms that need to be cooled at this specific time without cooling the entire house. It’s done through the use of multiple indoor units. It’s called zoning.
If only one space in a house needs to be cooled, then a single zone air conditioner can be used. For more than one room, multi zone heat pumps are used. They provide cooling in summer and heating in winter.
How many indoor units can be connected to one outdoor unit in a ductless air conditioning system?
Up to four.
How do ductless air conditioners compare in cost to central air conditioning systems?
Central air conditioner in its basic option is a rather primitive and inefficient system. It could be cheaper than a mini split air conditioner. If we compare units, ductless and central, of the same efficiency, the clear winner becomes ductless air conditioning. If we add the cost of ducts to the cost of central air conditioner, ductless system is a winner by a huge margin.
What are the advantages of ductlessair conditioners?
Small footprint allows for more choices with installation
Can be installed virtually in any house since it doesn’t require ductwork
Can be zoned to cool only occupied areas of a house and avoid waste in unoccupied areas
Whisper quiet operation of both outdoor and indoor units
Reduced hydro and maintenance costs
What are the disadvantages of installing a ductless air conditioner?
It’s really difficult to come up with any. You can find negative reviews on ductless air conditioners.
Some people compare them to window units. You read that ductless units are bulky, expensive, etc.
DIY. In the US anyone can buy a ductless air conditioner at Home Depot. This crowd complains that mini splits are unreliable. The answer is this jobs needs proper skills and tools.
Can ductless air conditioners be used in multi-story homes?
Yes, we do install install ductless air conditioners in 2 and 3 storey houses. It might need extra efforts, especially with multi zone units.