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Rinnai Adds R290 Heat Pump Range to Decarbonising Product List

R290 High Temperature Air Source Heat Pumps added to Rinnai’s product options. 

The start of 2024 will see Rinnai introduce further decarbonising options across all appliances and energy formats.

Rinnai has added an additional line of commercial heat pump technology to an already extensive list of decarbonising appliances. The innovative new range of air source heat pumps utilizes R290, a LOW scoring GWP (Global Warming Potential) refrigerant.

Rinnai has added an additional line of commercial heat pump technology to an already extensive list of decarbonising appliances. The innovative new range of air source heat pumps utilizes R290, a LOW scoring GWP (Global Warming Potential) refrigerant.

R290 allows for several operational benefits: energy efficiency is improved by 10%, the enabling of water temperature up to 75 degrees Celsius and R290 usage provides compliance alongside the European F-Gas Regulation which focuses on phasing down refrigerant environmental impact.

Rinnai is continuing to add further low carbon options for UK customers that require low cost, efficient and durable products. Throughout the beginning of 2024 Rinnai will introduce a comprehensive range of systems and appliances that utilize separate energies for domestic, commercial and off-grid properties.

Rinnai’s R290 air source heat pump range is available in 11 different sizes, from 6 kW up to 50 kW. All units arrive with control systems that allows time sensitive programming and customization enabling specific customer requirements to be met.

To preview this exciting new range visit

Rinnai’s air source heat pump range is ratified with an ERP rating of A +++ and A ++ depending on size and can also fulfil UK customer decarbonising ambitions. As well as providing an extensive list of low carbon technologies Rinnai also offer a range of online customer services that assist in customer choice and information.

Rinnai’s carbon calculation service considers design from a holistic perspective of capital expenditure, operational expenditure, and carbon savings. Rinnai’s carbon calculation service will compare a customer’s current heating system to Rinnai’s product list of low carbon, high performance, heating systems that are all proven to reduce cost. This feature will enable customers to view proven benefits when investing in a Rinnai system.

Rinnai low-GWP range of heat pumps demonstrate Rinnai’s continuous dedication to producing low cost, highly efficient and thoroughly robust appliances that reduces operational expenditure and carbon emissions.


Rinnai’s H3 range of decarbonising products include hydrogen / BioLPG ready technology, hybrid systems, and a wide range of LOW GWP heat pumps and solar thermal. Also, within Rinnai’s H3 range is Infinity hydrogen blend ready and BioLPG ready continuous flow water heaters which are stacked with a multitude of features that ensure long life, robust & durable use, customer satisfaction and product efficiency.

Rinnai’s range of decarbonising products – H1/H2/H3 – consists of heat pump, solar, hydrogen in any configuration, hybrid formats for either residential or commercial applications. Rinnai’s H3 range of products offer contractors, consultants and end users a range of efficient, robust and affordable decarbonising appliances which create practical, economic and technically feasible solutions. The range covers all forms of fuels and appliances currently available – electric, gas, hydrogen, BioLPG, DME solar thermal, low GWP heat pumps and electric water heaters.

 Rinnai also provide a system design service that will suggest an appropriate system for the property in question. Rinnai offer comprehensive training courses and technical support in all aspects of the water heating industry including detailed CPD’s. More information can be found on Rinnai’s website and its “Help Me Choose” webpage.


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For more information on the RINNAI product range visit

9 May 2024


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