Low GWP Communicating/24V Side Discharge Heat Pumps

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Step into the future and redefine the power of a heat pump.

Welcome to the new wave of heating and cooling solutions. Side-discharge heat pumps are taking the country by storm because of their innovative features and benefits. These Elite low GWP side-discharge models combine the efficiency and quiet operation of an inverter compressor heat pump with the humidity control of a variable-speed air handler. In addition, the low-profile footprint of our outdoor units requires less area for installation and accommodates applications with limited space. Side-discharge heat pumps have all these benefits plus the compatibility to replace your existing unit without a major renovation. When combined with our Elite Communicating Air Handlers, these systems achieve up to 17.3 SEER2 efficiency at a price point you will love.

Pro-tip! Many Low GWP Communicating/24V Side Discharge Heat Pumps are eligible for 25C IRA tax credits when paired with other units. Learn more about the 2025 Inflation Reduction Act. 

Models

DRU1U18S2A
Explore tax credits and rebates

Low GWP Communicating/24V Side Discharge Heat Pumps Features


  • A2L Compatible
  • HVAC equipment products sold to licensed contractors only. Products sold in select areas only, please contact your local branch for availability in your area.
  • Operational temperature down to -13 Deg F
  • Included base pan heater
  • Variable speed inverter compressor
  • Anti-corrosion fin coating
  • Quiet operation
  • Slim design
  • 24V Compatible
  • Designed for Sustainability with Low GWP and Refrigerant Detection System

DRU1U18S2A


  • Application: Residential
  • BTU: 18000
  • BTU Cooling Rating: 18000 Btu/h
  • BTU Heat Rating: 18000 Btu/h
  • Compressor Type: Inverter
  • Decibel Rating (dB): 55 dB
  • Height: 26-1/2 in
  • Indoor / Outdoor: Outdoor
  • Length: 13.00 in
  • Liquid Line (OD): 3/8 in
  • Maximum Temperature: 122
  • MBH: 18
  • Phase: Single Phase
  • Refrigerant: R-454B
  • Suction Line (OD): 3/4 in
  • Volts: 208/230V
  • Weight: 77 lb
  • Width: 35-1/16 in
  • Zones: 1

Frequently Asked questions

What’s more important, HSPF or SEER?

If you live in an area where winters are mild, then pay extra attention to the SEER rating. Conversely, if you live in the north where winters are more extreme, then the HSPF value is more important.

What are the main differences between a heat pump and a mini-split heat pump (otherwise known as a ductless heat pump)?

Generally, heat pumps are integrated into your home’s central heating and cooling system. That means the heat it provides travels through ducts into various rooms throughout your home. Alternatively, mini-split heat pumps, or ductless heat pumps, distribute heat directly into the room where they are installed.

What is HSPF2?

HSPF2 stands for Heating Seasonal Performance Factor 2. HSPF2 is a standardized rating used by all heat pump manufacturers to compare energy efficiencies between heat pumps. The higher the HSPF2, the more efficient the system operates during cold seasons.

What is EER2?

EER2 is Energy Efficiency Ratio 2. It’s the cooling capacity of an air conditioner or heat pump unit for a specific amount of energy used in a specific testing climate.

Which AC units are the quietest?

Decibels (dB) are the unit of measure for the intensity of noise. The lower the decibel level, the quieter your unit will be. We share key specifications, such as decibels, on our product pages so you can quickly compare your options.

What does SEER2 mean?

SEER2 stands for Seasonal Efficiency Energy Ratio which compares the energy efficiencies from different central air conditioners and heat pump systems. The higher the rating, the more efficient the system.

How to talk to your contractor


Learn how to talk the talk with a few of our top tips. We cover important questions to ask your HVAC contractor, common mistakes when buying a new system, and more.

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