What size mini split do I need for a 500 sq ft room?

A 12,000 BTU mini split system is typically ideal for a 500 square foot space.

What size mini split do I need for a 500 sq ft room?

A 12,000 BTU mini split system is typically ideal for a 500 square foot space.

How do I choose the right size mini split system for my room?

Mini split capacity is measured in BTUs (British Thermal Units) based on your space's square footage. As a general guide: • 500–700 sq. ft.: 12,000 BTU (1 Ton) • 700–1,000 sq. ft.: 18,000 BTU (1.5 Ton) • 1,000–1,500 sq. ft.: 24,000 BTU (2 Ton) Factors like ceiling height, sun exposure, and insulation also impact your heat load. Use our online BTU Calculator or contact our expert sales team at (737) 738-6329 for a free sizing assessment.

What is the difference between single-zone and multi-zone mini splits?

A single-zone mini split pairs one outdoor condenser with one indoor air handler, ideal for cooling or heating a single room, garage, or addition. A multi-zone system connects one high-capacity outdoor unit to up to 5+ indoor air handlers (wall mounts, ceiling cassettes, or concealed ducts), allowing you to set independent temperatures across multiple rooms.

Does South Mini Splits offer free shipping?

Yes! We offer free standard shipping on qualifying orders over $300 on select authorized brands across the contiguous U.S. Freight orders are securely strapped to pallets and delivered via trusted carrier partners with tracking updates provided from dispatch to driveway.

Can I install a mini split system myself, or do I need a licensed HVAC technician?

While handy DIYers can complete the physical mounting, line set routing, and component placement, final system start-up, pressure testing, and refrigerant connection must be performed by a licensed EPA-certified HVAC technician to validate manufacturer warranties and ensure leak-free operation.

What indoor unit styles are available besides wall-mounted units?

South Mini Splits carries a wide range of aesthetic and functional indoor air handler styles: • Wall-Mount Systems: Traditional, high-efficiency wall units. • 4-Way & 1-Way Ceiling Cassettes: Low-profile units recessed directly into the ceiling. • Concealed Slim Duct Systems: Hidden in attics or drop ceilings for invisible ductless comfort. • Floor Console Units: Low-profile units ideal for replacing old radiators or knee-wall spaces.

Are South Mini Splits products covered by manufacturer warranties?

Yes. South Mini Splits is an Authorized Dealer for top HVAC brands, including Cooper & Hunter, Bravo, OLMO, Daikin, Goodman, MRCOOL, and ACiQ. Buying through an authorized dealer ensures you receive genuine factory-backed equipment, full manufacturer warranty coverage, and dedicated technical support.

Does South Mini Splits offer HVAC financing?

Yes, we offer flexible financing options—including interest-free installment plans through partners like Afterpay—to help qualified buyers spread out equipment costs over manageable monthly payments during checkout.

What is the difference between R-410A and R-454B refrigerant systems?

R-410A has been the long-standing industry standard refrigerant, while R-454B is a next-generation, low-GWP (Global Warming Potential) refrigerant compliant with newer environmental regulations. South Mini Splits stocks both R-410A inventory for multi-room replacement projects and R-454B systems for modern, eco-friendly builds.

Do you offer special discounts or pricing for HVAC contractors and trade professionals?

Yes. HVAC contractors, builders, and volume purchasers can join our Contractor / VIP Club for exclusive bulk pricing (up to 15% off), dedicated order support, fast quote turnarounds, and job-site shipping options.

How do I get help selecting compatible parts or requesting a custom quote?

You can use our interactive Multi-Zone Builder to design your system or email your project requirements to sales@southminisplits.com. For instant support, call our sales line at (737) 738-6329 or reach our dedicated technical support team Monday through Friday, 8:00 AM – 6:00 PM CST.

What size mini split do I need for a 500 sq ft room?

A 12,000 BTU mini split system is typically ideal for a 500 square foot space.

What is AFUE, and why does it matter?

AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a gas furnace converts fuel to heat. A rating of 90% AFUE means 90 cents of every fuel dollar goes toward heating, while the other 10 cents is wasted. We recommend looking for systems that are Energy Star rated for the best long-term savings.

Should I choose a gas or an electric furnace?

This depends on three factors: Fuel Cost, Climate, and Availability. Gas is usually preferred in very cold climates due to lower operating costs, provided natural gas is readily accessible. Electric furnaces are often simpler and cheaper to install in areas with mild winters.

Can a new furnace work with my old central AC system?

Yes. Most new furnaces can be connected to older, functional central air conditioners. However, for peak efficiency, we always recommend pairing your new furnace with a new, compatible outdoor AC unit to ensure the components are perfectly matched for optimal performance.

What is the most important maintenance I need to do for my furnace?

The single most important maintenance task is regularly replacing or cleaning your air filter. A clogged filter restricts airflow, forcing the furnace to work harder, which raises energy bills and can lead to system overheating or damage. Check your filter every 30-90 days, depending on usage and filter type.

What are the benefits of a "Variable-Speed" Blower?

Furnaces with variable-speed blowers offer superior comfort and efficiency. Instead of running at full blast, they can slowly ramp up and down to gently circulate air. This provides quieter operation, improves humidity control, and ensures more consistent temperatures throughout your home, eliminating hot and cold spots.

What size mini split do I need for a 500 sq ft room?

A 12,000 BTU mini split system is typically ideal for a 500 square foot space.

All Mini Split Systems and Accessories | South Mini Splits Page 10

Bulk discount percentages by qualifying merchandise subtotal
Qualifying subtotal	$5K	$10K	$15K	$50K
BRAVO	5%	10%	13%	15%
Other eligible brands	3%	5%	6%	8%

Cooper & Hunter

Cooper & Hunter — Installation Kits for Mini Splits 3/8"-7/8" Mini Split Installation Kit Insulated Pre-Flared 25ft/50ft with Connection WiresCooper&Hunter — Installation Kits for Mini Splits 3/8"-7/8" Mini Split Installation Kit Insulated Pre-Flared 25ft/50ft with Connection WiresSKU: PJX-N6-C25FTW-MAX (25FT)

Cooper & Hunter

From

$491.04

$491.04 ~~$350.00~~

Free shipping eligible

ACIQ

ACIQ KJR-120N - Wired Mini Split Controller w/ WiFiACIQ KJR-120N - Wired Mini Split Controller w/ WiFiSKU: KJR-120N

ACIQ

Accessory

$116.56

Check shipping

ACIQ

Installation Kit for Condensers - Accessory SetInstallation Kit for Condensers - Accessory SetSKU: MSK001

ACIQ

Accessory

$182.29

Check shipping

MRCOOL

MRCOOL No-Vac Line Set R454B - Precharged Quick Connect Linesets for Gen 2 Central Ducted , VersaPro Series , Universal SeriesMRCOOL No-Vac Line Set R454B - Precharged Quick Connect Linesets for Gen 2 Central Ducted , VersaPro Series , Universal SeriesSKU: NV15-3834-O

MRCOOL

Accessory

From

$334.00

Check shipping

MRCOOL R454B

208-230V

MRCOOL 27,000 BTU 5th Gen DIY 4-Zone Multi-Split Condenser | R-454B - DIY-MULTI4-27HP230D-OMRCOOL 27,000 BTU 5th Gen DIY 4-Zone Multi-Split Condenser | R-454B - DIY-MULTI4-27HP230D-OSKU: DIY-MULTI4-27HP230D-O

MRCOOL

Outdoor unit only

27,000 BTU2–4 Supported zones

Condenser capacity27,000 BTUVoltage208-230V

Supported zones2–4

Requires matching MRCOOL indoor unit

See coverageWarranty

$2,100.00

Check shipping

Cooper & Hunter R454B

208-230V

Cooper & Hunter Multi-Zone R454B, 18,000 BTU 230V Multi-Position Air Handler Air Conditioning Indoor Unit for Heat Pump, Ductless Mini Split Inverter System Up To 19.7 SEER2, Wi-Fi Thermostat, Optional Install Kit and Auxiliary Heat Strip CH-RS18MAHUCooper&Hunter Multi-Zone R454B, 18,000 BTU 230V Multi-Position Air Handler Air Conditioning Indoor Unit for Heat Pump, Ductless Mini Split Inverter System Up To 19.7 SEER2, Wi-Fi Thermostat, Optional Install Kit and Auxiliary Heat Strip CH-RS18MAHUSKU: CH-RS18MAHU

Cooper & Hunter

Indoor unit only

18,000 BTU

Air handler capacity18,000 BTUVoltage208-230V

Requires matching Cooper & Hunter outdoor unit

From

$1,438.56

Free shipping eligible

Cooper & Hunter R454B

22.2 SEER208-230V

Cooper & Hunter 18,000 BTU, 1.5 TON, One Way Ceiling Cassette, Air Conditioning Unit for Heat Pump, Mini Split Inverter System, 22.2 SEER, R454B, 208/230V, Installation Kit Option, CH-RSH18MCT1W + CH-RES18-230VOCooper&Hunter 18,000 BTU, 1.5 TON, One Way Ceiling Cassette, Air Conditioning Unit for Heat Pump, Mini Split Inverter System, 22.2 SEER, R454B, 208/230V, Installation Kit Option, CH-RSH18MCT1W + CH-RES18-230VOSKU: CH-RSH18MCT1W + CH-RES18-230VO

Cooper & Hunter

Single-zone system

18,000 BTU

Capacity18,000 BTUSEER22.2Voltage208-230V

Coverage550-1000 sq ft

Zones1

Indoor + outdoor units

7 years compressor · 5 years partsComplete system warranty

From

$2,819.22

$2,819.22 ~~$2,034.48~~

Free shipping eligible

Cooper & Hunter R454B

2 SEER208-230V

Cooper & Hunter Universal Floor/Ceiling 24,000 BTU 230V, R454B, 21,2 SEER Ductless Mini Split AC System 2 TON. Optional Installation Kit CH-RSH24MFC + CH-RES24-230VOCooper & Hunter Universal Floor/Ceiling 24,000 BTU 230V, R454B, 21,2 SEER Ductless Mini Split AC System 2 TON. Optional Installation Kit CH-RSH24MFC + CH-RES24-230VOSKU: CH-RSH24MFC + CH-RES24-230VO

Cooper & Hunter

Single-zone system

24,000 BTU

Capacity24,000 BTUSEER2Voltage208-230V

Coverage1000-1500 sq ft

Zones1

Indoor + outdoor units

7 years compressor · 5 years partsComplete system warranty

From

$2,515.68

$2,515.68 ~~$1,707.00~~

Free shipping eligible

Cooper & Hunter R454B

23.1 SEER208-230V

Cooper & Hunter Olivia Series Midnight Edition 1 Ton Single Zone AC & Heat Pump R454B 12000 BTU Ductless Mini Split Black Mirror Panel 23.1 SEER Inverter 230V/60HZ Single Head Wi-Fi Optional Install KitCooper & Hunter Olivia Series Midnight Edition 1 Ton Single Zone AC & Heat Pump R454B 12000 BTU Ductless Mini Split Black Mirror Panel 23.1 SEER Inverter 230V/60HZ Single Head Wi-Fi Optional Install KitSKU: CH-RB12MOLVWM-230VI + CH-RES12-230VO

Cooper & Hunter

Single-zone system

12,000 BTU

Capacity12,000 BTUSEER23.1Voltage208-230V

Coverage400-550 sq ft

Zones1

Indoor + outdoor units

7 years compressor · 5 years partsComplete system warranty

From

$1,347.84

$1,347.84 ~~$718.41~~

Free shipping eligible

ARMBRIDGE

ARMBRIDGE Line set 1/4"-1/2" Mini Split Installation Kit Pre-Flared 16ft/25ft/50ft with Connection Wires for 12000-18000 BTU Unit SystemsARMBRIDGE Line set 1/4"-1/2" Mini Split Installation Kit Pre-Flared 16ft/25ft/50ft with Connection Wires for 12000-18000 BTU Unit SystemsSKU: AB2-16FT

ARMBRIDGE

From

$208.00

$208.00 ~~$127.88~~

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Bravo R32

208-230V

Bravo Pisa Series 18,000 BTU 22.0 SEER2, Single Zone Concealed Slim Duct Mini Split Heat Pump System w/ 16' Installation KitBravo Pisa Series 18,000 BTU 22.0 SEER2, Single Zone Concealed Slim Duct Mini Split Heat Pump System w/ 16' Installation KitSKU: BRV-P18DT230VI + BRV-P18LS-230VO

Bravo

17% offSingle-zone system

18,000 BTU

Capacity18,000 BTUEfficiencyConfirm ratingVoltage208-230V

Coverage550-1000 sq ft

Zones1

Indoor + outdoor units

7 years compressor · 5 years partsComplete system warranty

$1,278.86~~$1,540.80~~ You save $261.94 (17% off)

Free shipping eligible

MRCOOL R454B

208-230V

MRCOOL 6k BTU DIY 5th Generation Wall Mounted Multi-Zone Air Handler 230V | DIY-06-HP-WMAH-230D25-OMRCOOL 6k BTU DIY 5th Generation Wall Mounted Multi-Zone Air Handler 230V | DIY-06-HP-WMAH-230D25-OSKU: DIY-06-HP-WMAH-230D25-O

MRCOOL

Indoor unit only

6,000 BTU

Capacity6,000 BTUVoltage208-230V

Requires matching MRCOOL outdoor unit

See coverageWarranty

From

$457.00

$457.00 ~~$245.00~~

Check shipping

MRCOOL R454B

208-230V

MRCOOL DIY Mini Split - EZPRO 5th Gen R454B 24,000 BTU (2 TON) 18.9 SEER2 Ductless Air Conditioner and Heat Pump with Quiet Wall Mount, Wi-Fi and includes Pre-Charged 16FT Installation Kit Complete Inverter High Wall System - EZPRO-24-HP-23016D-OMRCOOL DIY Mini Split - EZPRO 5th Gen R454B 24,000 BTU (2 TON) 18.9 SEER2 Ductless Air Conditioner and Heat Pump with Quiet Wall Mount, Wi-Fi and includes Pre-Charged 16FT Installation Kit Complete Inverter High Wall System - EZPRO-24-HP-23016D-OSKU: EZPRO-24-HP-23016D-O

MRCOOL

Single-zone system

24,000 BTU

Capacity24,000 BTUEfficiencyConfirm ratingVoltage208-230V

Coverage400-550 sq ft

Zones1

Indoor + outdoor units

See coverageWarranty

$2,149.00

$2,149.00 ~~$2,149.00~~

Check shipping

MRCOOL R454B

208-230V

MRCOOL Mini Split - Advantage Series 5th Gen 230V (2 TON) 19.2 SEER2 Ductless Air Conditioner and Heat Pump 24,000 BTU Quiet Wall Mount, Wi-Fi and 16ft Installation Kit Included Complete Inverter High Wall System - A-24-HP-230D-OMRCOOL Mini Split - Advantage Series 5th Gen 230V (2 TON) 19.2 SEER2 Ductless Air Conditioner and Heat Pump 24,000 BTU Quiet Wall Mount, Wi-Fi and 16ft Installation Kit Included Complete Inverter High Wall System - A-24-HP-230D-OSKU: A-24-HP-230D-O

MRCOOL

SaleSingle-zone system

24,000 BTU

Capacity24,000 BTUEfficiencyConfirm ratingVoltage208-230V

Coverage1500 and up sq ft

Zones1

Indoor + outdoor units

See coverageWarranty

From

$1,666.00

$1,666.00 ~~$2,119.90~~

Check shipping

Cooper & Hunter R454B

19 SEER208-230V

Cooper & Hunter Slim Duct 12,000 BTU 230V 19 SEER Concealed Duct Air Conditioning Unit for Heat Pump 1 TON, R454B, + Installation Kit Option CH-RS12MDT-MS +CH-RES12-230VOCooper & Hunter Slim Duct 12,000 BTU 230V 19 SEER Concealed Duct Air Conditioning Unit for Heat Pump 1 TON, R454B, + Installation Kit Option CH-RS12MDT-MS +CH-RES12-230VOSKU: CH-RS06-12MDT- MS + CH-RES12-230VO

Cooper & Hunter

Single-zone system

12,000 BTU

Capacity12,000 BTUSEER19Voltage208-230V

Zones1

Indoor + outdoor units

7 years compressor · 5 years partsComplete system warranty

From

$1,702.08

Free shipping eligible

Cooper & Hunter R454B

22.3 SEER208-230V

Cooper & Hunter, Olivia Series, R454B, 30,000 BTU/h, 208-230V/60HZ, 2.5 Ton, 22.3 SEER, Ductless Mini Split Wall Mount AC/Heater With WIFI and Optional Installation Kit - CH-R30MELVWM-230VI + CH-REL30-230VOCooper & Hunter, Olivia Series, R454B, 30,000 BTU/h, 208-230V/60HZ, 2.5 Ton, 22.3 SEER, Ductless Mini Split Wall Mount AC/Heater With WIFI and Optional Installation Kit - CH-R30MELVWM-230VI + CH-REL30-230VOSKU: CH-R30MELVWM-230VI + CH-REL30-230VO

Cooper & Hunter

30,000 BTU

Capacity30,000 BTUSEER22.3Voltage208-230V

From

$2,430.72

$2,430.72 ~~$1,903.16~~

Free shipping eligible

MRCOOL R410ALimited

MRCOOL DIY R-410A Charged Line Set 3/8"-5/8" Mini Split Quick-Connection for DIY 24K & 36K Indoor with Connection Wires (Select Size)MRCOOL DIY R-410A Charged Line Set 3/8"-5/8" Mini Split Quick-Connection for DIY 24K & 36K Indoor with Connection Wires (Select Size)SKU: DIY35-3858C

MRCOOL

Sale

From

$458.85

$458.85 ~~$483.00~~

Check shipping

OLMO R32

208-230V

OLMO Through The Wall Air Conditioner (Heating and Cooling) 14K 230v/60hz with Remote Control, Smart Connect, Heat Strip and Optional SleeveOLMO Through The Wall Air Conditioner (Heating and Cooling) 14K 230v/60hz with Remote Control, Smart Connect, Heat Strip and Optional SleeveSKU: OW-P14HS230WF

OLMO

15% off

Voltage208-230V

See coverageWarranty

From

$543.20~~$639.06~~ You save $95.86 (15% off)

Free shipping eligible

Ductless Mini Splits

Single Zone

Multi Zone

Ducted Mini Splits

Mini Split Components

Central HVAC Systems

Room Air and More

Accessories and Parts

Save on Bulk Orders

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9927 products

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ACIQ KJR-120N - Wired Mini Split Controller w/ WiFiACIQ KJR-120N - Wired Mini Split Controller w/ WiFiSKU: KJR-120N

Installation Kit for Condensers - Accessory SetInstallation Kit for Condensers - Accessory SetSKU: MSK001

MRCOOL No-Vac Line Set R454B - Precharged Quick Connect Linesets for Gen 2 Central Ducted , VersaPro Series , Universal SeriesMRCOOL No-Vac Line Set R454B - Precharged Quick Connect Linesets for Gen 2 Central Ducted , VersaPro Series , Universal SeriesSKU: NV15-3834-O

MRCOOL 27,000 BTU 5th Gen DIY 4-Zone Multi-Split Condenser | R-454B - DIY-MULTI4-27HP230D-OMRCOOL 27,000 BTU 5th Gen DIY 4-Zone Multi-Split Condenser | R-454B - DIY-MULTI4-27HP230D-OSKU: DIY-MULTI4-27HP230D-O

ARMBRIDGE Line set 1/4"-1/2" Mini Split Installation Kit Pre-Flared 16ft/25ft/50ft with Connection Wires for 12000-18000 BTU Unit SystemsARMBRIDGE Line set 1/4"-1/2" Mini Split Installation Kit Pre-Flared 16ft/25ft/50ft with Connection Wires for 12000-18000 BTU Unit SystemsSKU: AB2-16FT

Bravo Pisa Series 18,000 BTU 22.0 SEER2, Single Zone Concealed Slim Duct Mini Split Heat Pump System w/ 16' Installation KitBravo Pisa Series 18,000 BTU 22.0 SEER2, Single Zone Concealed Slim Duct Mini Split Heat Pump System w/ 16' Installation KitSKU: BRV-P18DT230VI + BRV-P18LS-230VO

MRCOOL 6k BTU DIY 5th Generation Wall Mounted Multi-Zone Air Handler 230V | DIY-06-HP-WMAH-230D25-OMRCOOL 6k BTU DIY 5th Generation Wall Mounted Multi-Zone Air Handler 230V | DIY-06-HP-WMAH-230D25-OSKU: DIY-06-HP-WMAH-230D25-O

MRCOOL DIY R-410A Charged Line Set 3/8"-5/8" Mini Split Quick-Connection for DIY 24K & 36K Indoor with Connection Wires (Select Size)MRCOOL DIY R-410A Charged Line Set 3/8"-5/8" Mini Split Quick-Connection for DIY 24K & 36K Indoor with Connection Wires (Select Size)SKU: DIY35-3858C

OLMO Through The Wall Air Conditioner (Heating and Cooling) 14K 230v/60hz with Remote Control, Smart Connect, Heat Strip and Optional SleeveOLMO Through The Wall Air Conditioner (Heating and Cooling) 14K 230v/60hz with Remote Control, Smart Connect, Heat Strip and Optional SleeveSKU: OW-P14HS230WF

Ductless Mini Splits

Single Zone

Multi Zone

Ducted Mini Splits

Mini Split Components

Central HVAC Systems

Room Air and More

Accessories and Parts

Save on Bulk Orders

ALL PRODUCTS

9927 products

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ACIQ KJR-120N - Wired Mini Split Controller w/ WiFiACIQ KJR-120N - Wired Mini Split Controller w/ WiFiSKU: KJR-120N

Installation Kit for Condensers - Accessory SetInstallation Kit for Condensers - Accessory SetSKU: MSK001

MRCOOL No-Vac Line Set R454B - Precharged Quick Connect Linesets for Gen 2 Central Ducted , VersaPro Series , Universal SeriesMRCOOL No-Vac Line Set R454B - Precharged Quick Connect Linesets for Gen 2 Central Ducted , VersaPro Series , Universal SeriesSKU: NV15-3834-O

MRCOOL 27,000 BTU 5th Gen DIY 4-Zone Multi-Split Condenser | R-454B - DIY-MULTI4-27HP230D-OMRCOOL 27,000 BTU 5th Gen DIY 4-Zone Multi-Split Condenser | R-454B - DIY-MULTI4-27HP230D-OSKU: DIY-MULTI4-27HP230D-O

ARMBRIDGE Line set 1/4"-1/2" Mini Split Installation Kit Pre-Flared 16ft/25ft/50ft with Connection Wires for 12000-18000 BTU Unit SystemsARMBRIDGE Line set 1/4"-1/2" Mini Split Installation Kit Pre-Flared 16ft/25ft/50ft with Connection Wires for 12000-18000 BTU Unit SystemsSKU: AB2-16FT

Bravo Pisa Series 18,000 BTU 22.0 SEER2, Single Zone Concealed Slim Duct Mini Split Heat Pump System w/ 16' Installation KitBravo Pisa Series 18,000 BTU 22.0 SEER2, Single Zone Concealed Slim Duct Mini Split Heat Pump System w/ 16' Installation KitSKU: BRV-P18DT230VI + BRV-P18LS-230VO

MRCOOL 6k BTU DIY 5th Generation Wall Mounted Multi-Zone Air Handler 230V | DIY-06-HP-WMAH-230D25-OMRCOOL 6k BTU DIY 5th Generation Wall Mounted Multi-Zone Air Handler 230V | DIY-06-HP-WMAH-230D25-OSKU: DIY-06-HP-WMAH-230D25-O

MRCOOL DIY R-410A Charged Line Set 3/8"-5/8" Mini Split Quick-Connection for DIY 24K & 36K Indoor with Connection Wires (Select Size)MRCOOL DIY R-410A Charged Line Set 3/8"-5/8" Mini Split Quick-Connection for DIY 24K & 36K Indoor with Connection Wires (Select Size)SKU: DIY35-3858C

OLMO Through The Wall Air Conditioner (Heating and Cooling) 14K 230v/60hz with Remote Control, Smart Connect, Heat Strip and Optional SleeveOLMO Through The Wall Air Conditioner (Heating and Cooling) 14K 230v/60hz with Remote Control, Smart Connect, Heat Strip and Optional SleeveSKU: OW-P14HS230WF

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