How many heads can one mini split system have?

Residential mini-splits generally go up to five heads. The more heads you have in a system, the more complicated it becomes to properly install, service, and maintain the system.

Can a mini split have two heads?





In the case of dual zone mini-split systems, we can connect 2 indoor heads to a single generator. This usually gives us double the capacity (about 20,000 BTU) and the ability to put the 2 zone mini-split system in 2 separate rooms. The dual-zone ductless mini-split units are especially popular.

Can you add more heads to a mini split?

You wouldn’t be able to just add whatever air handlers you want, but yes, you can start with one zone and install the rest later on multi-zone mini splits. Multi-Zone mini splits do allow for installing and using only a portion of the air handlers they are built for.

Can a mini split have multiple indoor units?

The main advantages of mini-splits are their small size and flexibility for zoning 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 cooling is required for the building or each zone.

How many zones can you have with a mini split?

eight zones





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Ductless mini-split units are highly versatile, allowing you to create zones for separate temperature controls. One outdoor unit can be connected to up to eight zones, typically enough for the average household. You can add more outdoor and indoor units at a later date if needed.

Can you slightly oversize a mini split?

So, yes, you absolutely can oversize a mini-split. And when you do, you end up with some of the same problems you get from oversizing conventional systems: poor humidity control, short cycling, and wasted money.

How can I split my air conditioner into two rooms?

If AC is fitted in 1st bedroom, then it will cool 1st Room with door closed. Then turn of 2nd one will come. 2nd Bedroom will become cool after sometime only. Just keep it this way.

Do I need a multi-zone mini split?

If you wish to provide air conditioning for all areas of your home, a multi-zone system will best serve your needs. However, if your goal is to provide air conditioning for just one under-served area of your home, you only need a single-zone mini split system.

What is the difference between a mini split system and a multi split system?



Both multi split air conditioners and mini split air conditioners can heat and cool multiple rooms or areas in a home. The key difference between the two is that you can set different temperatures for different rooms with a multi split system while the same temperature applies to all rooms with a mini split system.

Does every room need a mini split head?

Do I Need a Ductless Unit in Every Room of the House? No. While you won’t need a single indoor unit for every room in the home, the outdoor unit does attach to multiple indoor wall-mounted units.

How many rooms can you cool with a mini split?

4 rooms



Both can be used to cool a single room without ductwork. But a mini-split can add more evaporator units (up to 4) to one condenser unit. So technically it can cool up to 4 rooms. Mini-splits are also much more energy efficient than window units and last longer, too.

How many mini splits do I need for a 1500 square foot house?

For a 1,500 sq ft house, you would need 2.5 12,000 BTU mini splits. In these cases, it’s always better to round up the number. Namely, for a 1,500 sq ft you would need 3 12,000 BTY mini splits. You could also use 2 12,000 BTU units and 1 9,000 BTU unit.

How many zones can you have in a ductless air conditioner?

eight separate zones

Homeowners fight over temperatures in their homes and have rooms that go unused for long periods. Now they can save energy and control temperatures independently in up to eight separate zones, with a single outdoor unit.

Can a mini split cool a whole house?



Even though it takes a powerful system – especially in a large home – a ductless mini split is up to the task. With the right size system in place, it’s capable of cooling an entire house, from the basement all the way up to the attic.

How many BTU Mini Split do I need?

BTU Sizing Chart for Mini Split Systems

Area To Be Cooled Capacity Needed (BTUs Per Hour)
350 to 400 square feet 9,000 BTUs
400 to 450 square feet 10,000 BTUs
450 to 550 square feet 12,000 BTUs
550 to 700 square feet 14,000 BTUs

How many square feet can a 12000 BTU mini split heat?

550 square feet

One of the most often installed sizes is a 12,000 BTU mini-split. This will heat and cool approximately 450–550 square feet, or about the size of a studio apartment.

How do you pick a mini split size?



Determine the square foot of the rooms. A professional will measure the length by the width and multiply them. For example, if the room is 30 feet long by 40 feet wide, then it would be 30 x 40 = 1,200 square feet. To get the approximate BTU rating, the technician will multiply the square footage of the room by 25.

How do I figure out what size mini split I need?

For air conditioners, there is a BTU-to-room sizing rule of thumb. This can provide a rough estimate of the mini split BTU per square foot you need to efficiently service the room.
What Size Mini Split Do I Need?

Space in square ft. BTUs per hour needed
450-500 12,000
550-700 14,000
700-1,000 18,000
1,000-1,200 21,000

How big of a mini split do I need for 500 square feet?

How are ductless mini-splits sized?

Space Capacity BTU Level
350 square feet 9,000 BTU
500 square feet 12,000 BTU
750 square feet 18,000 BTU
1000 square feet 24,000 BTU

How big of a mini split do I need for 900 square feet?

550–600 square feet = 15,000 BTUs. 650–700 square feet = 17,500 BTUs. 750–800 square feet = 20,000 BTUs. 850–900 square feet = 22,550 BTUs.