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.

Mini Split & HVAC Accessories | Installation Parts Page 18

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%

Perfect Aire

Perfect AireLine Set ¼ x 1/2 x 25ft with Condenser Coupler for the 18KPerfect Aire Line Set ¼ x 1/2 x 25ft with Condenser Coupler for the 18KSKU: 2DALS14-12-25
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Perfect AireLine Set ¼ x 3/8 x 25ft with Condenser Coupler for the 9K and 12KPerfect Aire Line Set ¼ x 3/8 x 25ft with Condenser Coupler for the 9K and 12KSKU: 2DALS14-38-25
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Perfect Aire

Perfect Aire25' Quick Connect Line Set for 24k and 36k Indoor Units, 3/8 x 5/8 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 24k and 36k Indoor Units, 3/8 x 5/8 x 25ft with Condenser CouplerSKU: 1DALS38-58-25
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Perfect Aire

Perfect Aire15' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 15ft with Condenser CouplerPerfect Aire 15' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 15ft with Condenser CouplerSKU: 1DALS14-12-15
Perfect Aire
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Perfect Aire

Perfect Aire25' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 25ft with Condenser CouplerSKU: 1DALS14-12-25
Perfect Aire
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Perfect Aire

Perfect Aire25' Quick Connect Line Set for 9k and 12k Indoor Units, 1/4 x 3/8 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 9k and 12k Indoor Units, 1/4 x 3/8 x 25ft with Condenser CouplerSKU: 1DALS14-38-25
Perfect Aire
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ACiQ

ACIQ 30ft or 50ft Refrigerant Line Set – 3/8" LL x 7/8" SL with 3/8"-3/4" Insulation | Pre-Insulated Copper for Split HVAC & Heat Pump SystemsACIQ 30ft or 50ft Refrigerant Line Set – 3/8" LL x 7/8" SL with 3/8"-3/4" Insulation | Pre-Insulated Copper for Split HVAC & Heat Pump SystemsSKU: LS38783830
ACiQ
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Regular price $381.00

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Perfect Aire

Perfect AireReplacement Window Exhaust Kit, 5.92" diameter hose for Perfect Aire Portable Air ConditionersPerfect Aire Replacement Window Exhaust Kit, 5.92" diameter hose for Perfect Aire Portable Air ConditionersSKU: PORTV592PA
Perfect Aire
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ACIQ
208-230V

ACiQ 10kW Fused Heat Kit with for ACiQ Packaged UnitsACiQ 10kW Fused Heat Kit with for ACiQ Packaged UnitsSKU: CPHEATER050B00
ACIQ
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Voltage208-230V

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ACIQ
208-230V

ACiQ 10kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 10kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER130A03
ACIQ
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ACIQ
208-230V

ACiQ 5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER126A03
ACIQ
Accessory

Voltage208-230V

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ACIQ
208-230V

ACiQ 5kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 5kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER064B00
ACIQ
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ACIQ
208-230V

ACiQ 15kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 15kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER131A03
ACIQ
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ACIQ
208-230V

ACiQ 7.5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 7.5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER128A03
ACIQ
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Voltage208-230V

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ACIQ
208-230V

ACiQ 20kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 20kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER054B00
ACIQ
Accessory

Voltage208-230V

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ACIQ
208-230V

ACiQ 15kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 15kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER066B00
ACIQ
Accessory

Voltage208-230V

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ACIQ
208-230V

ACiQ 7.5kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 7.5kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER070B00
ACIQ
Accessory

Voltage208-230V

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Regular price $417.00

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ACIQ
208-230V

ACiQ 20kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitACiQ 20kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitSKU: CPHEATER132A03
ACIQ
Accessory

Voltage208-230V

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Regular price $799.00

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ACIQ

ACiQ 20 Kilowatt 68,200 BTU Heater CoilACiQ 20 Kilowatt 68,200 BTU Heater CoilSKU: PEAH-20C(UL)
ACIQ
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ACIQ

ACiQ 8 kilowatt 26,000 BTU Heater CoilACiQ 8 kilowatt 26,000 BTU Heater CoilSKU: PEAH-08C(UL)
ACIQ
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MRCOOL
208-230V

MRCOOL(8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit) Ducted Air Handler Heat Kit, Auxiliary Heater, Electrical Heater()MRCOOL (8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit) Ducted Air Handler Heat Kit, Auxiliary Heater, Electrical Heater(MVPHK08)SKU: MVPHK08
MRCOOL
SaleAccessory

Voltage208-230V

Price

Regular price $149.00

Sale price $149.00 Regular price ~~$161.00~~
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Ductless Mini Splits

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Multi Zone

Ducted Mini Splits

Mini Split Components

Central HVAC Systems

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Perfect AireLine Set ¼ x 1/2 x 25ft with Condenser Coupler for the 18KPerfect Aire Line Set ¼ x 1/2 x 25ft with Condenser Coupler for the 18KSKU: 2DALS14-12-25

Perfect AireLine Set ¼ x 3/8 x 25ft with Condenser Coupler for the 9K and 12KPerfect Aire Line Set ¼ x 3/8 x 25ft with Condenser Coupler for the 9K and 12KSKU: 2DALS14-38-25

Perfect Aire25' Quick Connect Line Set for 24k and 36k Indoor Units, 3/8 x 5/8 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 24k and 36k Indoor Units, 3/8 x 5/8 x 25ft with Condenser CouplerSKU: 1DALS38-58-25

Perfect Aire15' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 15ft with Condenser CouplerPerfect Aire 15' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 15ft with Condenser CouplerSKU: 1DALS14-12-15

Perfect Aire25' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 25ft with Condenser CouplerSKU: 1DALS14-12-25

Perfect Aire25' Quick Connect Line Set for 9k and 12k Indoor Units, 1/4 x 3/8 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 9k and 12k Indoor Units, 1/4 x 3/8 x 25ft with Condenser CouplerSKU: 1DALS14-38-25

Perfect AireReplacement Window Exhaust Kit, 5.92" diameter hose for Perfect Aire Portable Air ConditionersPerfect Aire Replacement Window Exhaust Kit, 5.92" diameter hose for Perfect Aire Portable Air ConditionersSKU: PORTV592PA

ACiQ 10kW Fused Heat Kit with for ACiQ Packaged UnitsACiQ 10kW Fused Heat Kit with for ACiQ Packaged UnitsSKU: CPHEATER050B00

ACiQ 10kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 10kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER130A03

ACiQ 5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER126A03

ACiQ 5kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 5kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER064B00

ACiQ 15kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 15kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER131A03

ACiQ 7.5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 7.5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER128A03

ACiQ 20kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 20kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER054B00

ACiQ 15kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 15kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER066B00

ACiQ 7.5kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 7.5kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER070B00

ACiQ 20kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitACiQ 20kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitSKU: CPHEATER132A03

ACiQ 20 Kilowatt 68,200 BTU Heater CoilACiQ 20 Kilowatt 68,200 BTU Heater CoilSKU: PEAH-20C(UL)

ACiQ 8 kilowatt 26,000 BTU Heater CoilACiQ 8 kilowatt 26,000 BTU Heater CoilSKU: PEAH-08C(UL)

MRCOOL(8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit) Ducted Air Handler Heat Kit, Auxiliary Heater, Electrical Heater()MRCOOL (8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit) Ducted Air Handler Heat Kit, Auxiliary Heater, Electrical Heater(MVPHK08)SKU: MVPHK08

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

Shop All Accessories

431 products

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Perfect AireLine Set ¼ x 1/2 x 25ft with Condenser Coupler for the 18KPerfect Aire Line Set ¼ x 1/2 x 25ft with Condenser Coupler for the 18KSKU: 2DALS14-12-25

Perfect AireLine Set ¼ x 3/8 x 25ft with Condenser Coupler for the 9K and 12KPerfect Aire Line Set ¼ x 3/8 x 25ft with Condenser Coupler for the 9K and 12KSKU: 2DALS14-38-25

Perfect Aire25' Quick Connect Line Set for 24k and 36k Indoor Units, 3/8 x 5/8 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 24k and 36k Indoor Units, 3/8 x 5/8 x 25ft with Condenser CouplerSKU: 1DALS38-58-25

Perfect Aire15' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 15ft with Condenser CouplerPerfect Aire 15' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 15ft with Condenser CouplerSKU: 1DALS14-12-15

Perfect Aire25' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 18k Indoor Units, 1/4 x 1/2 x 25ft with Condenser CouplerSKU: 1DALS14-12-25

Perfect Aire25' Quick Connect Line Set for 9k and 12k Indoor Units, 1/4 x 3/8 x 25ft with Condenser CouplerPerfect Aire 25' Quick Connect Line Set for 9k and 12k Indoor Units, 1/4 x 3/8 x 25ft with Condenser CouplerSKU: 1DALS14-38-25

Perfect AireReplacement Window Exhaust Kit, 5.92" diameter hose for Perfect Aire Portable Air ConditionersPerfect Aire Replacement Window Exhaust Kit, 5.92" diameter hose for Perfect Aire Portable Air ConditionersSKU: PORTV592PA

ACiQ 10kW Fused Heat Kit with for ACiQ Packaged UnitsACiQ 10kW Fused Heat Kit with for ACiQ Packaged UnitsSKU: CPHEATER050B00

ACiQ 10kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 10kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER130A03

ACiQ 5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER126A03

ACiQ 5kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 5kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER064B00

ACiQ 15kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 15kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER131A03

ACiQ 7.5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsACiQ 7.5kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitsSKU: CPHEATER128A03

ACiQ 20kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 20kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER054B00

ACiQ 15kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 15kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER066B00

ACiQ 7.5kW Fused Heat Kit for ACiQ Packaged UnitsACiQ 7.5kW Fused Heat Kit for ACiQ Packaged UnitsSKU: CPHEATER070B00

ACiQ 20kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitACiQ 20kW Heat Kit with Circuit Breaker for ACiQ Packaged UnitSKU: CPHEATER132A03

ACiQ 20 Kilowatt 68,200 BTU Heater CoilACiQ 20 Kilowatt 68,200 BTU Heater CoilSKU: PEAH-20C(UL)

ACiQ 8 kilowatt 26,000 BTU Heater CoilACiQ 8 kilowatt 26,000 BTU Heater CoilSKU: PEAH-08C(UL)

MRCOOL(8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit) Ducted Air Handler Heat Kit, Auxiliary Heater, Electrical Heater()MRCOOL (8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit) Ducted Air Handler Heat Kit, Auxiliary Heater, Electrical Heater(MVPHK08)SKU: MVPHK08

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