Close-up at outdoor unit.

For Residential
Applications

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Proven R290 architecture for residential heating, cooling, and domestic hot water 

ES Group’s residential platform provides complete air-to-water heat pump systems built on natural refrigerant technology and flexible control architecture. Partners access a mature foundation that reduces development risk and accelerates market entry. 

Line-art illustration showing a home energy management system for a residential villa.

Platform Foundation 

Our residential platform combines: 

  • Proprietary control tech stack developed in-house
  • Multi-tenant architecture designed to integrate with Home Energy Management Systems 
  • Modular indoor unit range: Multiple configurations (DHW tanks in 100L and 250L, hydrobox, control box) address diverse installation scenarios and retrofit requirements 
  • Integrated metering architecture: Flow sensors and electrical meters built into platform design for accurate energy data capture and system optimization 
  • Over-the-air firmware updates for continuous improvement 
  • Local and cloud integration flexibility based on your strategy 

What This Platform Has Enabled

A leading European residential heat pump company brought their complete product line to market in 14 months using this platform – from project start to first installation. The partnership demonstrates how proven architecture enables rapid deployment without compromising on design ambition or technical performance.

Current R290 Product Range

The residential platform currently supports R290
(natural refrigerant, GWP 3) heat pump systems across the
residential capacity spectrum: 
Lineup of residential outdoor units shown in linea-art. Showing 20 kW, 15 kW, 12/8 kW and 6 kW.

Outdoor Units: 6-20kW Capacity Range 

Monobloc air-to-water heat pumps available in 6kW, 8kW, 12kW, 15kW, and 20kW configurations. Multiple power options (single-phase and three-phase) address diverse residential applications and electrical infrastructure requirements. 

Operating range: -25°C to +45°C ambient temperature. Maximum output temperature: 70°C. All units deliver heating, cooling, and domestic hot water capability. 

Residential indoor units, all in one and tankless units, showing in lineart

Indoor Unit Solutions 

 

Complete indoor unit range supporting diverse
installation requirements: 

 

  • 100L and 250L DHW units: All-in-one systems integrating domestic hot water storage with backup heating for new construction or complete system replacement. The 100L unit is designed for gas boiler replacement with wall-mounting capability.
  • Hydrobox (tankless): Designed for hybrid systems, operates seamlessly with existing heating infrastructure. Perfect for modernizing systems while retaining functional existing boilers as backup.
  • Control Box (tankless): Flexible control solution for system configurations requiring separated control architecture.

 

All indoor units feature ES Group’s proprietary control platform with white-label capability across touchscreens, mobile apps, and fleet management interfaces.