What's in the box
- 1 × MRCOOL® Universal® 36K BTU 3 Ton Packaged Heat Pump
- Installation Documentation
- Professional installation is recommended. The MRCOOL® Universal® Packaged Heat Pump is designed for residential and light commercial applications and supports horizontal, upflow, and downflow configurations. Proper electrical connections, ductwork, airflow setup, and local code compliance are essential for optimal performance and warranty coverage.
- The system ships as a complete outdoor packaged unit, helping simplify installation compared to traditional split-system configurations.
Compatible Auxiliary Heat Kits (Sold Separately):
- 6kW Heat Kit
- 9kW Heat Kit
- 12kW Heat Kit
Always refer to the installation manual and local building codes before installation.
• 10-Year Parts Warranty
• 10-Year Labor Warranty
Please refer to the Warranty Documentation for full warranty terms, registration requirements, and coverage details.
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Free shipping available.
Orders ship from U.S. warehouse locations. Delivery times may vary by product availability, destination, and freight carrier scheduling.Returns must follow Cool Heat Direct’s return policy and the product must meet return eligibility requirements.
Manuals & documents
MODEL: MDPH18036D
Efficient Whole-Home Comfort. Built for Every Season.
Looking for reliable heating and cooling that delivers year-round comfort while helping reduce energy costs?
The MRCOOL® Universal® 36K BTU 3 Ton Packaged Heat Pump combines advanced inverter technology, impressive energy efficiency, and all-in-one convenience in a single outdoor unit designed for dependable whole-home comfort.
Ideal for homes between 1,400–1,700 sq ft, this packaged heat pump continuously adjusts its output to match changing indoor conditions. Unlike traditional systems that cycle on and off repeatedly, the inverter-driven compressor operates at variable speeds to maintain more consistent temperatures, quieter performance, improved efficiency, and reduced energy consumption.
With an impressive 18 SEER2 efficiency rating, reliable heating in temperatures as low as -22°F, and cooling performance in conditions up to 125°F, this system is engineered to perform in virtually any climate.
The use of environmentally friendly R-32 refrigerant helps reduce environmental impact while supporting modern efficiency standards. Flexible installation options, including horizontal, upflow, and downflow applications, make this system an excellent choice for both replacement projects and new construction.
Whether you're upgrading an older HVAC system or building a new home, the Universal® 36K delivers dependable comfort, lower utility bills, and long-term peace of mind.
One system. One installation. Year-round comfort.
Why You’ll Love It
✅Ideal for homes between 1,400–1,700 sq ft
✅High-efficiency 18 SEER2 performance
✅ Variable-speed DC inverter technology
✅ Heating performance down to -22°F
✅ Cooling operation up to 125°F
✅ All-in-one packaged heat pump design
✅ Environmentally friendly R-32 refrigerant
✅ Flexible horizontal, upflow, or downflow installation
✅ Energy Star® Cold Climate Certified
✅ Industry-leading 10-Year Parts & Labor Warranty
Best For
Medium Homes • Whole Home Comfort • New Construction • Replacement Systems • Open Floor Plans • Cold Climate Regions
| Coverage Area | 1,400–1,700 sq ft |
| Capacity | 36K BTU |
| Tonnage | 3 Ton |
| Cooling Capacity | 34,000 BTU |
| Heating Capacity | 34,000 BTU |
| SEER2 | 18 |
| EER2 | 11.2 |
| HSPF2 | 8.5 |
| Voltage | 208/230V |
| Phase | Single Phase |
| Refrigerant | R-32 |
| Inverter Technology | Yes |
| Heating Operation | Down to -22°F |
| Cooling Operation | Up to 125°F |
| Sound Level | 63 dBA |
| Auxiliary Heat Compatible | Yes |
| Auxiliary Heat Sizes | 6kW, 9kW, 12kW |
| Warranty | 10-Year Parts & Labor |
Questions, answered
Everything homeowners ask before buying a MRCOOL® system.
Installation
What installation requirements apply to this product?
Installation requirements vary by product type. Selected complete MRCOOL® DIY systems are designed for homeowner installation when fitted in line with the manufacturer’s instructions, local codes and permit requirements.
Central HVAC systems, including Universal®, VersaPro®, Central Ducted Hyper Heat and packaged systems, are intended for professional installation by a qualified HVAC contractor. Licensed electrical work may also be required.
Components, thermostats, controls, line sets and accessories should be installed according to their product documentation and compatibility requirements. Always review the product page, manufacturer guidance and warranty conditions before installation.
Will I need any additional parts, tools or professional services?
Additional requirements vary by product and installation. Tools, electrical materials, mounting hardware, connecting components or other installation supplies may be required unless specifically stated as included.
Review the product description, specifications, installation information and What’s Included section, where available, before ordering.
Where can I find product documents or installation instructions?
Available specifications, installation instructions, owner’s manuals and manufacturer documents are provided on the product page where applicable.
Some simple accessories may not have a separate installation manual. Contact our team if you need help locating documentation for a particular product or model.
Sizing & Compatibility
How do I confirm this product is compatible with my equipment?
Review the product type, model number, dimensions, voltage, capacity, refrigerant type, connection sizes and compatibility information shown on the product page, where applicable.
Components, thermostats, controls and accessories must be matched to compatible equipment. Contact our team before ordering if you are uncertain about compatibility.
What should I check before ordering?
Confirm the product name and model number, together with any relevant dimensions, voltage, capacity, refrigerant type, connections and installation requirements.
For replacement components and accessories, compare the product specifications with your existing equipment and the relevant manufacturer documentation before placing your order.
What is included with this product?
The supplied items are listed in the What’s Included section or product description, where applicable. Only the products, components and accessories specifically stated are included.
Electrical materials, mounting equipment, connecting components or other installation supplies may need to be purchased separately unless expressly stated otherwise.
Warranty & Support
What warranty coverage applies to this product?
Warranty coverage varies by product and model. Eligible MRCOOL® products are covered according to the manufacturer’s warranty terms, registration requirements and installation conditions.
Accessories and individual components may have different coverage. Cool Heat Direct can provide available warranty documentation and general guidance, while warranty eligibility and claim decisions are determined by the manufacturer.
How can I get help before ordering?
Email support@coolheatdirect.com with the product name or model number and details about your project or existing equipment.
For compatibility questions, include the model numbers of any products you intend to connect, control, replace or use together.
Support hours: Monday–Friday, 9 AM–6 PM ET.
Shipping & Returns
How will my order be shipped?
Free standard shipping is available on eligible orders to the Lower 48 states and Washington, D.C.
Orders are generally processed within 3–5 business days, followed by approximately 5–12 business days in transit. Delivery timing varies by product availability, destination and carrier scheduling.
Smaller products may ship by parcel carrier. Larger equipment may be delivered curbside by freight carrier. The carrier may contact you to arrange a delivery appointment.
Can I return this product?
Return requests may be submitted within 30 calendar days of delivery. Products must be new, unused and uninstalled and, where applicable, unpowered. They must also be complete and in their original manufacturer packaging. Prior written authorization is required.
For approved change-of-mind returns, incorrect sizing or customer ordering errors, the customer is responsible for return freight and a 15% restocking fee applies.
Verified damaged, defective, incorrect or incomplete orders are handled separately under our full policy.
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