Universal Install Compatibility: The RD18AY works with nearly any R-454-B HVAC system option — including Ruud EcoNet enabled and non-communicating systems, or as a universal replacement with minimal alterations.  Whether your choice is driven by space or sound constraints, electrification initiatives or dual fuel opportunities — this is the comfort solution for you.

Peace-of-Mind Performance: Relax, you're covered by one of the best warranties in the industry — 10 Year Conditional Parts when installed as a heat pump only or as part of a system.

Energy Savings: Just like a vehicle's MPG rating, the higher the SEER2, EER2 and HSPF2 rating (Seasonal Energy Efficiency Ratio / Energy Efficiency Ration / Heating Seasonal Performance Factor), the higher the efficiency of your heat pump — resulting in more energy savings.  Keep in mind, other factors such as system matching, sizing, ductwork and installation also impact the overall efficiency.  By working with a properly trained contractor, you can be confident that you are choosing the best heating and cooling system for your home's comfort — and your finances.

Maximum Comfort: Inverter driven, variable speed, twin rotary compressor technology features fully variable cooling and heating operation between 45% and 100% of capacity to continuously meet your ever-changing needs.  You'll enjoy exact temperature and advanced humidity control that combine to exceed your optimal comfort expectations.

Reduced Emissions: Households generate 72% of greenhouse gas emissions, so switching to a heat pump can make a big difference for the equipment — today.

Less Environmental Impact: the 7mm condenser coil reduces refrigerant requirements up to 15%.  This lowers the amount of greenhouse gasses emitted while contributing to our sustainability goal of a 50% reduction in our greenhouse gas footprint.  A win for all of us.

Space-Saver Solution: Part of our Sound & Space Constraint Solution, the Ultra Series Side-Discharge Universal Heat Pump is the ideal product for when installation locations are cramped.  It features a small footprint with size options as low as 40.2" wide, 16.4 " deep and 36.6" tall.  This unit was designed to deliver whole-home comfort quietly and efficiently — further proof that good (and quiet) things come in small packages.

Durable Curb Appeal: Steel panels provide excellent support and protection to internal components, while the overall modern cabinet aesthetics, including the powder coat paint system and rust-resistant screws, allow your unit to put its best face forward for years to come.

Quiet Operation: Efficient home comfort shouldn't be noisy.  That's why our heat pumps are designed with acoustics in mind.  Sound-dampening features such as refrigerant tubing design, fan blade approach and innovative compressor and drive technologies ensure that as efficiency goes up, sound levels stay low — as low as 50dB.