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Air-to-Water Heat Pumps for Heating, Cooling and Hot Water

Tongyi manufactures air-to-water heat pumps for residential and commercial heating, cooling and domestic hot water. Explore our R290 heat pumps, smart energy solutions and OEM/ODM services for distributors and installers.

ABOUT US

Over Two Decades of Heat Pump Manufacturing

Tongyi develops and manufactures heat pumps for residential, commercial and industrial applications. We support distributors, installers and equipment brands with OEM/ODM services and technical expertise, helping our partners deliver heating, cooling and hot water solutions to their markets.

BUSINESS SOLUTIONS

Partner with Tongyi for OEM/ODM heat pump development and manufacturing. We support equipment brands and distributors with product customisation and technical expertise to develop heat pump ranges for their markets.

HEAT PUMP SOLUTIONS

Explore Tongyi heat pump solutions for homes, commercial buildings and industrial applications. Find the right system for your heating, cooling and hot water needs.

Air Water Heat Pump
ECOSOLUTIONS

Compatible Tongyi heat pumps integrate with solar PV, battery storage and home energy management systems, including Huawei FusionSolar, helping you make better use of your own solar electricity. Coordinate heating and hot water with your household’s energy needs.

ADVICE & KNOWLEDGE

How Does an Air-to-Water Heat Pump Work?

An air-to-water heat pump transfers heat from outdoor air to water for space heating and domestic hot water. An electrically powered compressor raises the refrigerant’s temperature so it can deliver useful heat. Reversible models can also provide cooling.

HEAT PUMP ADVANTAGES

Why Choose Tongyi Heat Pumps?

Quiet Operation

Silent mode helps reduce operating noise when quieter performance is needed. Sound levels vary by model, operating conditions and installation.

Remote Monitoring

On compatible models, IoT connectivity enables technical teams to monitor operating data and diagnose faults remotely, supporting troubleshooting and maintenance.

Twin Rotary

Twin rotary DC inverter compressors adjust their speed to match heating and cooling demand. Their balanced design helps reduce vibration and supports smoother operation.

Smart Defrost

Smart defrost controls defrosting cycles to remove frost from the outdoor heat exchanger, helping maintain heating performance in cold, humid conditions.

Remote Technical Support

Remote technical support helps distributors and installers troubleshoot heat pump issues and identify the next steps, with guidance from Tongyi’s technical team.

R290

R290 is a natural refrigerant with very low global warming potential. Explore Tongyi’s R290 heat pumps for heating, cooling and domestic hot water.

Lead Time

Plan orders with Tongyi’s team to coordinate production and delivery. Lead times vary by model, order quantity, customisation requirements and destination.

DC Inverter EVI Tech

DC inverter control adjusts compressor speed to match demand. On models equipped with EVI, enhanced vapour injection supports heating performance at low outdoor temperatures.

Smart Wifi Control

Adjust temperatures, select operating modes and check system status through a compatible app. WiFi control features depend on the heat pump model and configuration.

HEAT PUMP PROJECTS

Heat Pump Projects Across Europe and Asia

Explore Tongyi heat pump installations in homes, commercial buildings and industrial facilities, with examples of heating, cooling and hot water applications.

TONGYI PROJECTS
NEWS & EVENTS

Stay connected with our latest news and upcoming events.

NEWS

Welcome to Tongyi’s blog! We specialize in Air Water Heat Pumps. Stay updated on HVAC and renewable energy innovations and join us in creating a greener future.

Visit our Blog
EVENTS

Discover our participation in past exhibitions and save the date for future events to discover the potential of sustainable solutions to contribute to a brighter future.

Discover past & Upcoming Events
EuropeKnowledgeSingle-Phase vs Three-Phase Heat Pump: What Installers Need to Check
November 6, 2026

Single-Phase vs Three-Phase Heat Pump: What Installers Need to Check

Choosing between a single-phase and three-phase heat pump is not simply a question of buying the larger electrical option. The correct choice depends on the heat-pump model, its maximum electrical…
EuropeKnowledgeHeat Pump Short Cycling: Causes, Symptoms and Solutions
October 30, 2026

Heat Pump Short Cycling: Causes, Symptoms and Solutions

Heat pump short cycling happens when a heat pump starts and stops repeatedly instead of completing longer, steadier operating cycles. Some cycling is normal. A heat pump may stop when…
EuropeKnowledgeHeat Pump Water Treatment: Why Clean System Water Matters
October 23, 2026

Heat Pump Water Treatment: Why Clean System Water Matters

A heat pump can be correctly sized and commissioned yet still be affected by poor-quality water in the heating circuit. Corrosion products, installation debris, scale and unsuitable chemical treatment can…