Occupancy – If the space is regularly occupied by more than two people, add 600 BTUs for each additional person.
Mini split calculator windows#
Sunlight – Add 10% to 20% BTUs for rooms with large windows that receive direct sunlight. Other factors required to calculate the correct mini-split size are:įloor – Add 2,000 BTUs for a third floor.Ĭeiling height – Add 20% BTUs for ceilings higher than 8'.Ĭlimate and insulation – Add 30% BTUs for climates with seasonal temperatures over 90☏ or poorly insulated areas. Mini-split sizing chart and prices Square feet Small bathrooms and hallways do not require their own zones.
Large open areas may require more than one air handler. Enclosed spaces need their own indoor units. One outdoor condenser supports up to five indoor air handlers, or "zones," depending on size.Ī single-zone unit cools one room or area with an open floorplan.
Mini split calculator install#
The average cost to install a single zone mini-split is $1,800 to $6,000 for the system and labor, plus $500 to $2,000 per additional zone for a multi-zone system. Mini-split AC unit installed in sunroom Single vs. They are self-contained in an insulated metal cabinet for noise reduction and offer a cost-effective alternative to central air. Vertical air handlers connect to pre-existing ductwork and are installed vertically or horizontally. LG Art Cool Gallery wall mounts hide the air handler behind a picture frame for a stylish look.Ĭeiling cassettes are recessed so the grill is flush with the ceiling and distribute air in up to four directions via controllable vents.Ĭeiling-suspended units protrude 14" to 16" and work best in rooms with high ceilings or limited wall space.įloor-mounted air handlers mount at the bottom of the wall at floor-level for rooms that don't have upper wall space available.Ĭoncealed duct air handlers, or slim ducts, mount inside the ceiling and connect multiple vents to provide even cooling in large rooms. Wall-mounted air handlers are installed at least 7' high and are the most popular and least expensive option for homeowners. Each unit supports up to five indoor air handlers. Outdoor split AC condensers are placed on a concrete pad or wall-mounted with brackets.
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