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MRCOOL 9,000 BTU DIY Mini Split Heat Pump 5th Gen E Star 115V 25ft Line Set

MRCOOL 9,000 BTU DIY Mini Split Heat Pump 5th Gen E Star 115V 25ft Line Set

By MRCOOL | SKU: DIY-09-HP-WM-115D25-O | ID: 040010
✓ No Sales Tax - in most states excluding California
✓ Manufacturer Warranty Included
✓ Satisfaction Guarantee - or return within 30 Days
✓ Most Products In Stock - Call or Text (833) 658-3387 for availability
$2,329.00 + FREE SHIPPING

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Product Details

MRCOOL DIY 5th Generation 9,000 BTU Mini Split System DIY-09-HP-WM-115D25-O

Effortless Comfort for Smaller Spaces (Up to 400 sq. ft.)

Upgrade your comfort with the MRCOOL DIY® 5th Generation 9,000 BTU Mini Split, an ENERGY STAR® certified system designed specifically for homeowners who want professional-grade climate control without the hassle or cost of hiring an installer. Perfect for rooms up to 400 sq. ft., this single-zone ductless system delivers quiet, efficient heating and cooling all year long — with an ultra-simple DIY setup that most people can complete in just a few hours.

The included 25-foot Quick Connect® line set comes pre-charged with eco-friendly R-454B refrigerant, allowing for fast, tool-free installation without handling refrigerants. The MRCOOL SmartHVAC app and built-in Wi-Fi capability let you control your system remotely from your smartphone or integrate it with Amazon Alexa or Google Assistant for voice-activated convenience.

Whether you’re upgrading a bedroom, sunroom, garage, or home office, this system offers a sleek, modern design and whisper-quiet operation to enhance your space without disruption.

Key Features:

  • 9,000 BTU Capacity: Ideal for spaces up to 400 sq. ft., providing efficient heating and cooling for smaller rooms.
  • ENERGY STAR® Certified: High-efficiency performance reduces energy bills, making it an environmentally friendly choice.
  • Easy DIY Installation: No special tools or HVAC license required, with fast setup that anyone can complete in just a few hours.
  • 25ft Pre-Charged Line Set: Quick Connect® system uses environmentally friendly R-454B refrigerant, eliminating the need for complex refrigerant handling.
  • Wi-Fi Enabled + Smart Home Ready: Works with Alexa, Google Assistant, and the MRCOOL SmartHVAC app for remote control and voice-activated convenience.
  • Heating & Cooling in One Unit: Year-round comfort, even in extreme temperatures, with efficient heating and cooling capabilities.
  • Whisper-Quiet Operation: Low indoor noise levels for undisturbed comfort, ideal for bedrooms, offices, and other quiet spaces.
  • 5-Year Compressor & 1-Year Parts Warranty: Backed by MRCOOL’s trusted support for long-term peace of mind.

This system is perfect for homeowners, DIYers, and renovators looking for a reliable, cost-effective way to improve indoor comfort with cutting-edge technology and minimal installation effort.

View More DIY Mini Split Systems

Specifications

MRCOOL 9,000 BTU DIY 5th Generation Mini-Split Condenser 115V DIY-09-HP-C-115D25-O

Brand MRCOOL SKU DIY-09-HP-C-115D25-O
Weight 83 Manufacturer MRCOOL
HSPF2 11.5 Cooling BTU 9000 BTU
Heating BTU 10000 BTU Refrigerant R454B
SEER2 23 Compressor Type Rotary
Liquid Line 1/4" Suction Line 3/8"
Max Breaker Size 20A BTU/Tonnage 9,000 BTU/0.75 Ton
Zone Compatibility Single Zone Height 21.85"
Width 30.12" Depth 11.93"

MRCOOL 9,000 BTU DIY 5th Generation Mini-split Air Handler 115V DIY-09-HP-WMAH-115D25-O

Brand MRCOOL SKU DIY-09-HP-WMAH-115D25-O
Weight 24 Manufacturer MRCOOL
Refrigerant R454B Liquid Line 1/4"
Suction Line 3/8" Max Breaker Size 15A
BTU/Tonnage 9,000 BTU/0.75 Ton Height 11.69"
Width 31.57" Depth 7.44"
Warranty

MRCOOL 9,000 BTU DIY 5th Generation Mini-Split Condenser 115V DIY-09-HP-C-115D25-O

Warranty Coverage
Parts 1 Year
Compressor 5 Year

MRCOOL 9,000 BTU DIY 5th Generation Mini-split Air Handler 115V DIY-09-HP-WMAH-115D25-O

Warranty Coverage
Parts 1 Year
Compressor 5 Year
Documents

MRCOOL 9,000 BTU DIY 5th Generation Mini-Split Condenser 115V DIY-09-HP-C-115D25-O

Submittal
Service Manual (English)
Installation Manual
Warranty
Owner's Manual

MRCOOL 9,000 BTU DIY 5th Generation Mini-split Air Handler 115V DIY-09-HP-WMAH-115D25-O

Submittal
Service Manual (English)
Installation Manual
Warranty
Owner's Manual

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at support@hvacstore.com.

Returns: For returns unrelated to damage, contact us at support@hvacstore.com for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at support@hvacstore.com or call (833) 658-3387.

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Customers rate us 5.0/5 based on 8 reviews.
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I’ve installed Goodman heat pumps before at a similar price point. This was better quality, and a great deal from the HVAC store. I’m always a little nervous about picking the lowest cost provider but the came through quick and no damage.

I’m in the middle of install so if you don’t see an update, things went well. As I said, first impressions as I opened it up to adjust airflow direction was very impressed!

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Excellent company to purchase from

I wasn’t to sure about if this company could deliver it quickly but it arrived within a week. No issues. I needed this one for parts as my first one that I installed a year ago had the ecm go out on the blower fan. Parts are hard to come by for this Chinese brand. I think the ecm went out due to condensation in the main supply plenum dripping onto fan motor. I do like this ac unit but hope the fan lasts longer than a year. I covered the fan ecm with flex seal tape.

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Product Details

MRCOOL DIY 5th Generation 9,000 BTU Mini Split System DIY-09-HP-WM-115D25-O

Effortless Comfort for Smaller Spaces (Up to 400 sq. ft.)

Upgrade your comfort with the MRCOOL DIY® 5th Generation 9,000 BTU Mini Split, an ENERGY STAR® certified system designed specifically for homeowners who want professional-grade climate control without the hassle or cost of hiring an installer. Perfect for rooms up to 400 sq. ft., this single-zone ductless system delivers quiet, efficient heating and cooling all year long — with an ultra-simple DIY setup that most people can complete in just a few hours.

The included 25-foot Quick Connect® line set comes pre-charged with eco-friendly R-454B refrigerant, allowing for fast, tool-free installation without handling refrigerants. The MRCOOL SmartHVAC app and built-in Wi-Fi capability let you control your system remotely from your smartphone or integrate it with Amazon Alexa or Google Assistant for voice-activated convenience.

Whether you’re upgrading a bedroom, sunroom, garage, or home office, this system offers a sleek, modern design and whisper-quiet operation to enhance your space without disruption.

Key Features:

  • 9,000 BTU Capacity: Ideal for spaces up to 400 sq. ft., providing efficient heating and cooling for smaller rooms.
  • ENERGY STAR® Certified: High-efficiency performance reduces energy bills, making it an environmentally friendly choice.
  • Easy DIY Installation: No special tools or HVAC license required, with fast setup that anyone can complete in just a few hours.
  • 25ft Pre-Charged Line Set: Quick Connect® system uses environmentally friendly R-454B refrigerant, eliminating the need for complex refrigerant handling.
  • Wi-Fi Enabled + Smart Home Ready: Works with Alexa, Google Assistant, and the MRCOOL SmartHVAC app for remote control and voice-activated convenience.
  • Heating & Cooling in One Unit: Year-round comfort, even in extreme temperatures, with efficient heating and cooling capabilities.
  • Whisper-Quiet Operation: Low indoor noise levels for undisturbed comfort, ideal for bedrooms, offices, and other quiet spaces.
  • 5-Year Compressor & 1-Year Parts Warranty: Backed by MRCOOL’s trusted support for long-term peace of mind.

This system is perfect for homeowners, DIYers, and renovators looking for a reliable, cost-effective way to improve indoor comfort with cutting-edge technology and minimal installation effort.

View More DIY Mini Split Systems

Specifications

MRCOOL 9,000 BTU DIY 5th Generation Mini-Split Condenser 115V DIY-09-HP-C-115D25-O

Brand MRCOOL SKU DIY-09-HP-C-115D25-O
Weight 83 Manufacturer MRCOOL
HSPF2 11.5 Cooling BTU 9000 BTU
Heating BTU 10000 BTU Refrigerant R454B
SEER2 23 Compressor Type Rotary
Liquid Line 1/4" Suction Line 3/8"
Max Breaker Size 20A BTU/Tonnage 9,000 BTU/0.75 Ton
Zone Compatibility Single Zone Height 21.85"
Width 30.12" Depth 11.93"

MRCOOL 9,000 BTU DIY 5th Generation Mini-split Air Handler 115V DIY-09-HP-WMAH-115D25-O

Brand MRCOOL SKU DIY-09-HP-WMAH-115D25-O
Weight 24 Manufacturer MRCOOL
Refrigerant R454B Liquid Line 1/4"
Suction Line 3/8" Max Breaker Size 15A
BTU/Tonnage 9,000 BTU/0.75 Ton Height 11.69"
Width 31.57" Depth 7.44"
Warranty

MRCOOL 9,000 BTU DIY 5th Generation Mini-Split Condenser 115V DIY-09-HP-C-115D25-O

Warranty Coverage
Parts 1 Year
Compressor 5 Year

MRCOOL 9,000 BTU DIY 5th Generation Mini-split Air Handler 115V DIY-09-HP-WMAH-115D25-O

Warranty Coverage
Parts 1 Year
Compressor 5 Year
Documents

MRCOOL 9,000 BTU DIY 5th Generation Mini-Split Condenser 115V DIY-09-HP-C-115D25-O

Submittal
Service Manual (English)
Installation Manual
Warranty
Owner's Manual

MRCOOL 9,000 BTU DIY 5th Generation Mini-split Air Handler 115V DIY-09-HP-WMAH-115D25-O

Submittal
Service Manual (English)
Installation Manual
Warranty
Owner's Manual

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at support@hvacstore.com.

Returns: For returns unrelated to damage, contact us at support@hvacstore.com for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at support@hvacstore.com or call (833) 658-3387.

Reviews

Customer Reviews

Be the first to write a review
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