Thermablend-Lo

Thermablend-Lo is a Non-Hazardous heat transfer fluid with market-leading thermal conductivity and low viscosity, ensuring enhanced heat transfer and reduced energy consumption. This fluid is designed for heating systems operating at temperatures up to 80°C, making it ideal for a variety of applications, such as air source and ground source heat pumps.

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Related documents

Click to read and download our technical and safety data sheets for this product. 

Product benefits

  • Improved efficiency
    The superior thermal conductivity enhances heat transfer, reducing the energy required to maintain optimal heating performance.
  • Lower operating costs
    By optimising heat transfer and reducing viscosity, Thermablend-Lo helps minimize pump energy consumption and system maintenance costs.
  • Corrosion & scale protection
    Its premium multi-metal corrosion and scale inhibitors prevent system degradation, extending the lifespan of key components.
  • Enhanced system hygiene
    The NSF-approved biocide provides long-term microbial control, preventing biofilm formation and bacterial contamination that can impair system efficiency.
  • Sustainability & compliance
    Thermablend-Lo supports energy-saving initiatives and is endorsed by the Energy Saving Trust, ensuring compliance with industry standards.

Product applications

  • Medium heating systems
    Thermablend-Lo is designed for use in various medium-temperature heating systems, that operate up to 80°, including.
  • Heat Pump Circuits
    Enhancing efficiency in air-source and ground-source heat pumps.
  • Underfloor Heating Systems
    Providing consistent and efficient heat distribution.
  • District Heating Networks
    Optimising heat transfer in centralised heating schemes.
  • Commercial & industrial boilers, with low flow temperatures
    Protecting closed-loop systems against corrosion and scaling.
  • HVAC Systems
    Maintaining efficiency in heating and cooling applications.

More information

Thermablend-Lo is a non-hazardous heat transfer fluid engineered for high-efficiency thermal performance. With market-leading thermal conductivity and ultra-low viscosity, it maximises heat transfer while reducing energy consumption. Designed for heating systems operating at temperatures up to 80°C, Thermablend-Lo is ideal for air source heat pumps, ground source heat pumps, and other low-temperature heating applications.

Explore Thermablend-Lo

Non-hazardous

Non-hazardous heat transfer fluid with market leading high thermal conductivity and low viscosity for heating systems operating up to 80°C. Thermablend-Lo contains a specially formulated biocide with increased thermal stability, and premium multi-metal corrosion and scale inhibitors that are NSF approved and endorsed by the Energy Saving Trust. Available neat or diluted.

Dilation and freeze point

Thermablend LO heat transfer fluid table displaying freeze points and refractive indices at various volume percentages, from 25% to 50%, with freeze points ranging from –13.6 °C to –32.1 °C and refractive index from 1.358 to 1.383.

Viscosity comparison

Thermablend LO heat transfer fluid chart displaying freeze points and refractive indices at various volume percentages, from 25% to 50%, with freeze points ranging from –13.6 °C to –32.1 °C and refractive indices from 1.358 to 1.383.

Related products

Thermablend TX

Thermablend, for use in applications which include ground or air source heat pumps, underfloor heating and solar thermal applications.

Thermablend MPG

Thermablend, for use in applications which include ground or air source heat pumps, underfloor heating and solar thermal applications.

Buying from Blended

Blended has become a recognised name for reliable and competitively priced specialist gas and chemical products. Working alongside national as well as globally recognised brands, Blended provide the highest levels of service and tailored solutions, offering a customer focused approach which is combined with expertise and professionalism. Find our more

What our customers say

“EJM have used Blended Products for over 15 years for virgin Ammonia and now with the addition of their Decant Service, cements our ongoing relationship.”

Paul Cable

Managing Director, EGM Systems Limited

“Blended Products have engaged actively with a number of BCGA committees and initiatives since joining in 2014 and we appreciate their ongoing contribution”

Doug Thornton

Former Chief Executive BCGA

“After using Thermablend TX, we found mixing much easier due to its very low viscosity. We didn’t even require the pump station to mix the rest of the system water”

Ben Barratt

The Smart Energy Group

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Stay informed with the latest news, updates, and expert insights from the team at Blended. From industry trends and product innovations to technical advice and event coverage, our articles are designed to help you stay ahead in a fast-moving sector. Explore how we’re supporting customers, advancing sustainability, and sharing knowledge across the industries we serve.

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