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.

Products

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%

MRCOOL

MRCOOL TravelCool Ductless Installation KitMRCOOL TravelCool Ductless Installation KitSKU: MLRDK
MRCOOL
Accessory

Price

Regular price $136.00

Sale price $136.00 Regular price
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MRCOOL

MRCOOL TravelCool Remote ControlMRCOOL TravelCool Remote ControlSKU: MRDRC
MRCOOL
Accessory

Price

Regular price $18.00

Sale price $18.00 Regular price
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MRCOOL

MRCOOL TravelCool Wired Controller with WireMRCOOL TravelCool Wired Controller with WireSKU: MRDCW
MRCOOL
Accessory

Price

Regular price $33.00

Sale price $33.00 Regular price
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MRCOOL R454B
18.0 SEER208-230V

MRCOOL TruInverter Signature Series 2 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 2 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV8M2421BA
MRCOOL
Single-zone system

24,000 BTU

Air handler capacity24,000 BTUSEER18.0Voltage208-230V
Zones1
Indoor + outdoor units

See coverageWarranty

From

Regular price $3,291.65

Sale price $3,291.65 Regular price
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MRCOOL R454B
19.0 SEER208-230V

MRCOOL TruInverter Signature Series 3 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 3 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV9M3621BA
MRCOOL
Single-zone system

36,000 BTU

Air handler capacity36,000 BTUSEER19.0Voltage208-230V
Zones1
Indoor + outdoor units

See coverageWarranty

From

Regular price $3,511.65

Sale price $3,511.65 Regular price
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MRCOOL R454B
18.0 SEER208-230V

MRCOOL TruInverter Signature Series 4 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 4 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV8M4821BA
MRCOOL
Single-zone system

48,000 BTU

Air handler capacity48,000 BTUSEER18.0Voltage208-230V
Zones1
Indoor + outdoor units

See coverageWarranty

System price

Regular price $4,476.21

Sale price $4,476.21 Regular price
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MRCOOL R454B
18.0 SEER208-230V

MRCOOL TruInverter Signature Series 5 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 5 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV7M6021BA
MRCOOL
Single-zone system

60,000 BTU

Air handler capacity60,000 BTUSEER18.0Voltage208-230V
Zones1
Indoor + outdoor units

See coverageWarranty

System price

Regular price $4,476.21

Sale price $4,476.21 Regular price
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MRCOOL

MRCOOL Universal DC Inverter Package Unit Heat Kit - R32MRCOOL Universal DC Inverter Package Unit Heat Kit - R32SKU: MHK05PB
MRCOOL
Accessory

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Regular price $178.00

Sale price $178.00 Regular price
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MRCOOL R454B
208-230V

MRCOOL Universal R-454B 2 Ton Inverter Heat Pump Condenser – UHP18024-OMRCOOL Universal R-454B 2 Ton Inverter Heat Pump Condenser – UHP18024-OSKU: UHP18024-O
MRCOOL
Outdoor unit only

24,000 BTU

Condenser capacity24,000 BTUVoltage208-230V
Requires matching MRCOOL indoor unit

See coverageWarranty

Price

Regular price $1,859.22

Sale price $1,859.22 Regular price ~~$284.57~~
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MRCOOL R454B
208-230V

MRCOOL Universal R-454B 2.5 Ton Inverter Heat Pump Condenser – UHP18030-OMRCOOL Universal R-454B 2.5 Ton Inverter Heat Pump Condenser – UHP18030-OSKU: UHP18030-O
MRCOOL
Outdoor unit only

30,000 BTU

Condenser capacity30,000 BTUVoltage208-230V
Requires matching MRCOOL indoor unit

See coverageWarranty

Price

Regular price $2,160.00

Sale price $2,160.00 Regular price ~~$284.57~~
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MRCOOL R454B
208-230V

MRCOOL Universal R-454B 3 Ton Inverter Heat Pump Condenser – UHP18036-OMRCOOL Universal R-454B 3 Ton Inverter Heat Pump Condenser – UHP18036-OSKU: UHP18036-O
MRCOOL
Outdoor unit only

36,000 BTU

Condenser capacity36,000 BTUVoltage208-230V
Requires matching MRCOOL indoor unit

See coverageWarranty

Price

Regular price $2,680.00

Sale price $2,680.00 Regular price ~~$284.57~~
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MRCOOL R454B
208-230V

MRCOOL Universal R-454B 4 Ton Inverter Heat Pump Condenser – UHP18048-OMRCOOL Universal R-454B 4 Ton Inverter Heat Pump Condenser – UHP18048-OSKU: UHP18048-O
MRCOOL
Outdoor unit only

48,000 BTU

Condenser capacity48,000 BTUVoltage208-230V
Requires matching MRCOOL indoor unit

See coverageWarranty

Price

Regular price $2,903.74

Sale price $2,903.74 Regular price ~~$284.57~~
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MRCOOL R454B
208-230V

MRCOOL Universal R-454B 5 Ton Inverter Heat Pump Condenser – UHP18060-OMRCOOL Universal R-454B 5 Ton Inverter Heat Pump Condenser – UHP18060-OSKU: UHP18060-O
MRCOOL
Outdoor unit only

60,000 BTU

Condenser capacity60,000 BTUVoltage208-230V
Requires matching MRCOOL indoor unit

See coverageWarranty

Price

Regular price $3,097.87

Sale price $3,097.87 Regular price ~~$284.57~~
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MRCOOL

MRCOOL Universal Series Heat Kits - 5KW, 8KW, 10KW, 15KW, 20KW - R454BMRCOOL Universal Series Heat Kits - 5KW, 8KW, 10KW, 15KW, 20KW - R454BSKU: UHK05
MRCOOL
Accessory

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Regular price $181.00

Sale price $181.00 Regular price
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MRCOOL
115V

MRCOOL VersaPro 120k BTU 80% AFUE Gas Furnace with D Cabinet | MGA80SE120D5CMRCOOL VersaPro 120k BTU 80% AFUE Gas Furnace with D Cabinet | MGA80SE120D5CSKU: MGA80SE120D5C
MRCOOL
Sale

120,000 BTU

Heating capacity120,000 BTUVoltage115VAFUE80% AFUE

Price

Regular price $1,746.00

Sale price $1,746.00 Regular price ~~$1,811.00~~
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MRCOOL
115V

MRCOOL VersaPro 120k BTU 96% AFUE Gas Furnace, MGM96EE120D5NBMRCOOL VersaPro 120k BTU 96% AFUE Gas Furnace, MGM96EE120D5NBSKU: MGM96EE120D5NB
MRCOOL

120,000 BTU

Heating capacity120,000 BTUVoltage115VAFUE96% AFUE

Price

Regular price $2,596.00

Sale price $2,596.00 Regular price
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MRCOOL
115V

MRCOOL VersaPro 80% AFUE 60K BTU Gas Furnace| MGA80SE060B4CMRCOOL VersaPro 80% AFUE 60K BTU Gas Furnace| MGA80SE060B4CSKU: MGA80SE060B4C
MRCOOL
Sale

60,000 BTU

Heating capacity60,000 BTUVoltage115VAFUE80% AFUE

Price

Regular price $1,247.00

Sale price $1,247.00 Regular price ~~$1,512.00~~
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MRCOOL R454B
23.5 SEER115V

MRCOOL® 12k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 115V w/ 25ft Pre-Charged Quick Connect® Line Set & DIY® Cable DIY-12-HP-WM-115D25-OMRCOOL® 12k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 115V w/ 25ft Pre-Charged Quick Connect® Line Set & DIY® Cable DIY-12-HP-WM-115D25-OSKU: DIY-12-HP-WM-115D25-O
MRCOOL
Single-zone system

12,000 BTU

Capacity12,000 BTUSEER23.5Voltage115V
Zones1
Indoor + outdoor units

See coverageWarranty

System price

Regular price $2,359.00

Sale price $2,359.00 Regular price ~~$2,359.00~~
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MRCOOL R454B
22.5 SEER208-230V

MRCOOL® 18k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 230VV w/ 25ft Pre-Charged Quick Connect® Line Set & EZPRO® Cable DIY-18-HP-WM-230D25-OMRCOOL® 18k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 230VV w/ 25ft Pre-Charged Quick Connect® Line Set & EZPRO® Cable DIY-18-HP-WM-230D25-OSKU: DIY-18-HP-WM-230D25-O
MRCOOL
Single-zone system

18,000 BTU

Capacity18,000 BTUSEER22.5Voltage208-230V
Zones1
Indoor + outdoor units

See coverageWarranty

System price

Regular price $2,909.00

Sale price $2,909.00 Regular price ~~$2,909.00~~
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MRCOOL R454B
19.4 SEER208-230V

MRCOOL® 24,000 BTU (2 TON) R-454B DIY Hybrid™ Central Ducted Air Handler + DIY 5th Gen Single-Zone Mini-Split Condenser Complete System (25-ft QuickConnect® Line Set)MRCOOL® 24,000 BTU (2 TON) R-454B DIY Hybrid™ Central Ducted Air Handler + DIY 5th Gen Single-Zone Mini-Split Condenser Complete System (25-ft QuickConnect® Line Set)SKU: DIY-24-HP-MUAH-230D25-O + DIY-24-HP-C-230D25-O
MRCOOL
SaleSingle-zone system

24,000 BTU

Condenser capacity24,000 BTUAir handler capacity24,000 BTUSEER19.4Voltage208-230V
Zones1
Indoor + outdoor units

See coverageWarranty

From

Regular price $3,364.00

Sale price $3,364.00 Regular price ~~$4,540.98~~
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Ductless Mini Splits

Single Zone

Multi Zone

Ducted Mini Splits

Mini Split Components

Central HVAC Systems

Room Air and More

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9927 products

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MRCOOL TravelCool Ductless Installation KitMRCOOL TravelCool Ductless Installation KitSKU: MLRDK

MRCOOL TravelCool Remote ControlMRCOOL TravelCool Remote ControlSKU: MRDRC

MRCOOL TravelCool Wired Controller with WireMRCOOL TravelCool Wired Controller with WireSKU: MRDCW

MRCOOL TruInverter Signature Series 2 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 2 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV8M2421BA

MRCOOL TruInverter Signature Series 3 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 3 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV9M3621BA

MRCOOL TruInverter Signature Series 4 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 4 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV8M4821BA

MRCOOL TruInverter Signature Series 5 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 5 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV7M6021BA

MRCOOL Universal DC Inverter Package Unit Heat Kit - R32MRCOOL Universal DC Inverter Package Unit Heat Kit - R32SKU: MHK05PB

MRCOOL Universal R-454B 2 Ton Inverter Heat Pump Condenser – UHP18024-OMRCOOL Universal R-454B 2 Ton Inverter Heat Pump Condenser – UHP18024-OSKU: UHP18024-O

MRCOOL Universal R-454B 2.5 Ton Inverter Heat Pump Condenser – UHP18030-OMRCOOL Universal R-454B 2.5 Ton Inverter Heat Pump Condenser – UHP18030-OSKU: UHP18030-O

MRCOOL Universal R-454B 3 Ton Inverter Heat Pump Condenser – UHP18036-OMRCOOL Universal R-454B 3 Ton Inverter Heat Pump Condenser – UHP18036-OSKU: UHP18036-O

MRCOOL Universal R-454B 4 Ton Inverter Heat Pump Condenser – UHP18048-OMRCOOL Universal R-454B 4 Ton Inverter Heat Pump Condenser – UHP18048-OSKU: UHP18048-O

MRCOOL Universal R-454B 5 Ton Inverter Heat Pump Condenser – UHP18060-OMRCOOL Universal R-454B 5 Ton Inverter Heat Pump Condenser – UHP18060-OSKU: UHP18060-O

MRCOOL Universal Series Heat Kits - 5KW, 8KW, 10KW, 15KW, 20KW - R454BMRCOOL Universal Series Heat Kits - 5KW, 8KW, 10KW, 15KW, 20KW - R454BSKU: UHK05

MRCOOL VersaPro 120k BTU 80% AFUE Gas Furnace with D Cabinet | MGA80SE120D5CMRCOOL VersaPro 120k BTU 80% AFUE Gas Furnace with D Cabinet | MGA80SE120D5CSKU: MGA80SE120D5C

MRCOOL VersaPro 120k BTU 96% AFUE Gas Furnace, MGM96EE120D5NBMRCOOL VersaPro 120k BTU 96% AFUE Gas Furnace, MGM96EE120D5NBSKU: MGM96EE120D5NB

MRCOOL VersaPro 80% AFUE 60K BTU Gas Furnace| MGA80SE060B4CMRCOOL VersaPro 80% AFUE 60K BTU Gas Furnace| MGA80SE060B4CSKU: MGA80SE060B4C

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

Products

9927 products

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MRCOOL TravelCool Ductless Installation KitMRCOOL TravelCool Ductless Installation KitSKU: MLRDK

MRCOOL TravelCool Remote ControlMRCOOL TravelCool Remote ControlSKU: MRDRC

MRCOOL TravelCool Wired Controller with WireMRCOOL TravelCool Wired Controller with WireSKU: MRDCW

MRCOOL TruInverter Signature Series 2 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 2 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV8M2421BA

MRCOOL TruInverter Signature Series 3 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 3 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV9M3621BA

MRCOOL TruInverter Signature Series 4 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 4 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV8M4821BA

MRCOOL TruInverter Signature Series 5 Ton Heat Pump Condenser, Air HandlerMRCOOL TruInverter Signature Series 5 Ton Heat Pump Condenser, Air HandlerSKU: MCSHV7M6021BA

MRCOOL Universal DC Inverter Package Unit Heat Kit - R32MRCOOL Universal DC Inverter Package Unit Heat Kit - R32SKU: MHK05PB

MRCOOL Universal R-454B 2 Ton Inverter Heat Pump Condenser – UHP18024-OMRCOOL Universal R-454B 2 Ton Inverter Heat Pump Condenser – UHP18024-OSKU: UHP18024-O

MRCOOL Universal R-454B 2.5 Ton Inverter Heat Pump Condenser – UHP18030-OMRCOOL Universal R-454B 2.5 Ton Inverter Heat Pump Condenser – UHP18030-OSKU: UHP18030-O

MRCOOL Universal R-454B 3 Ton Inverter Heat Pump Condenser – UHP18036-OMRCOOL Universal R-454B 3 Ton Inverter Heat Pump Condenser – UHP18036-OSKU: UHP18036-O

MRCOOL Universal R-454B 4 Ton Inverter Heat Pump Condenser – UHP18048-OMRCOOL Universal R-454B 4 Ton Inverter Heat Pump Condenser – UHP18048-OSKU: UHP18048-O

MRCOOL Universal R-454B 5 Ton Inverter Heat Pump Condenser – UHP18060-OMRCOOL Universal R-454B 5 Ton Inverter Heat Pump Condenser – UHP18060-OSKU: UHP18060-O

MRCOOL Universal Series Heat Kits - 5KW, 8KW, 10KW, 15KW, 20KW - R454BMRCOOL Universal Series Heat Kits - 5KW, 8KW, 10KW, 15KW, 20KW - R454BSKU: UHK05

MRCOOL VersaPro 120k BTU 80% AFUE Gas Furnace with D Cabinet | MGA80SE120D5CMRCOOL VersaPro 120k BTU 80% AFUE Gas Furnace with D Cabinet | MGA80SE120D5CSKU: MGA80SE120D5C

MRCOOL VersaPro 120k BTU 96% AFUE Gas Furnace, MGM96EE120D5NBMRCOOL VersaPro 120k BTU 96% AFUE Gas Furnace, MGM96EE120D5NBSKU: MGM96EE120D5NB

MRCOOL VersaPro 80% AFUE 60K BTU Gas Furnace| MGA80SE060B4CMRCOOL VersaPro 80% AFUE 60K BTU Gas Furnace| MGA80SE060B4CSKU: MGA80SE060B4C

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