# Efficient Wall-Mounted Heat Pumps MRCOOL Debuts the Monoblock MTHP Series By Kalin Ned | Published 2026-08-12 | Art & Design Source: Trend Hunter, https://www.trendhunter.com/trends/wallmounted-heat-pump References: [mrcool](https://www.mrcool.com/locations)  MRCOOL has introduced the Monoblock MTHP Series, a 115V plug-in, wall-mounted heat pump that provides year-round heating and cooling without requiring an outdoor condenser unit, refrigerant-line connections, or the services of a certified HVAC technician for installation. The all-in-one system consolidates its primary components within a single indoor housing, requiring only two small exterior wall openings for airflow, and operates on standard household electrical outlets. MRCOOL's wall-mounted heat pump unit delivers cooling, heating, dehumidification, and fan modes through advanced [DC inverter technology](https://www.trendhunter.com/trends/air-conditioning-system) that adjusts output based on room conditions. The Monoblock MTHP Series utilizes R-32 refrigerant with a lower global warming potential than older alternatives, and features [smart-home compatibility](https://www.trendhunter.com/trends/dreo-wh517s) with the MRCOOL Connect app, Amazon Alexa, and Google Assistant, along with an LED display, remote control, and self-evaporative condensate management. Image Credit: MRCOOL ## Trend Insights (Trend Hunter) - Score: 9.6/10 - Popularity: 100% | Activity: 100% | Freshness: 89% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Art & Design](https://www.trendhunter.com/artdesign) > [Design](https://www.trendhunter.com/design) ## Key Themes ### What's Driving This Trend - **Plug-in Climate Systems:** Standard-outlet heating and cooling units create new potential for appliance-like HVAC upgrades in homes, rentals, and small commercial spaces. - **Condenser-free Installation:** All-in-one indoor heat pump designs reduce installation complexity, opening room for compact climate products that bypass traditional outdoor equipment constraints. - **Smart Low-gwp Comfort:** Connected controls paired with lower-impact refrigerants point to differentiated comfort systems that blend energy efficiency, automation, and sustainability. ### Who This Affects Most - **Residential HVAC:** Simplified wall-mounted heat pumps expand the category beyond contractor-led installations toward faster, more accessible home comfort solutions. - **Smart Home Technology:** Voice assistant and app integration positions climate control as part of the broader connected-home ecosystem, creating value through automated energy management. - **Rental Housing:** Non-invasive plug-in systems provide landlords and tenants with flexible heating and cooling options where permanent HVAC retrofits are costly or restricted. ## 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) - [Portable Personal Cooling](https://www.trendhunter.com/trends/portable-personal-cooling.md) - [Energy Efficient HVAC Systems](https://www.trendhunter.com/trends/hvac-system.md) - [Remote Mini-Split Thermostats](https://www.trendhunter.com/trends/minisplit-thermostat.md) - [Universal Heat Pump Models](https://www.trendhunter.com/trends/universal-heat-pump.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)