# Universal Heat Pump Models Rheem Expands Its Endeavor Line Classic Plus Series By Kalin Ned | Published 2026-06-15 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/universal-heat-pump References: [rheem](https://www.rheem.com/endeavor/)  Rheem has introduced the Endeavor Line Classic Plus Series Top-Discharge Universal Heat Pump, model RP17AY. This is an ENERGY STAR-certified residential HVAC unit designed to provide both cooling and heating through a split-system cabinet configuration. The Endeavor Line Classic Plus Series Top-Discharge Universal Heat Pump achieves cooling efficiencies of up to 17 SEER2 and heating efficiencies of 9.5 HSPF2. The model operates with R-454B refrigerant to meet modern environmental standards while delivering year-round temperature control. The unit incorporates variable-speed performance via a twin rotary compressor and inverter drive, allowing it to run between 35% and 100% capacity for more precise temperature and humidity management. Homeowners seeking to replace aging equipment will appreciate the universal compatibility, as the unit pairs with nearly any existing R-454B system and requires minimal modifications for installation. Image Credit: Rheem ## Trend Insights (Trend Hunter) - Score: 8.1/10 - Popularity: 76% | Activity: 86% | Freshness: 80% - Audience gender: 50% men, 50% women - Primary generations: Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What Makes This Trend Stand Out - **Universal Heat Pump Retrofits:** Compatibility-focused HVAC platforms reduce replacement friction for homeowners and create market space for standardized upgrade pathways across aging residential systems. - **Low-gwp Refrigerant Adoption:** R-454B-based equipment reflects a broader shift toward climate-compliant cooling technologies that can reshape product portfolios as environmental regulations tighten. - **Variable-speed Home Comfort:** Inverter-driven compressors enable more precise temperature and humidity control, positioning efficiency and comfort as differentiators in residential HVAC innovation. ### Sectors Adopting This - **Residential HVAC:** Split-system heat pump advancements expand opportunities for higher-efficiency home heating and cooling products that fit into existing installation workflows. - **Home Renovation:** Equipment designed for minimal-modification replacement supports growing demand for energy upgrades within broader home improvement and modernization projects. - **Green Building:** Energy-certified heating and cooling systems strengthen the role of mechanical infrastructure in sustainable housing, electrification strategies, and emissions-conscious construction. ## Related on Trend Hunter - [Indoor Monoblock Heat Pumps](https://www.trendhunter.com/trends/monoblock-heat-pump.md) - [Compact Hybrid Heat Pumps](https://www.trendhunter.com/trends/hybrid-heat-pump.md) - [Flat-Rate Single-Room Heat Pumps](https://www.trendhunter.com/trends/merino-mono.md) - [HEPA Filtration Air Conditioners](https://www.trendhunter.com/trends/dreame-ywind31-series.md) - [Energy Efficient HVAC Systems](https://www.trendhunter.com/trends/hvac-system.md) - [Advanced Scroll Compressor Lineups](https://www.trendhunter.com/trends/scroll-compressor.md) - [Efficient Gas Furnace Designs](https://www.trendhunter.com/trends/gas-furnace.md) - [Dual Climate RV Units](https://www.trendhunter.com/trends/instacool-ultra.md) - [Efficient Electric Heat Pumps](https://www.trendhunter.com/trends/heating-and-cooling-unit.md)