From 5 Months to 12: How Radiant Cooling Doubles the ROI of a Heat Pump Retrofit

Mar 04,2026

If You Only Sell Heating, Your System Works Just 5 Months a Year

Across Europe, heat pump retrofits are replacing gas boilers. In Germany, France, and Italy, thousands of 20–40-year-old homes are upgrading to air-to-water and ground-source heat pumps.

As a professional provider of heat pump systems, we have found that focusing solely on heating function fails to fully exploit the equipment's value. Yet if a heat pump is used only for heating, it truly delivers value for 4–5 months.

Asset depreciation, limited customer perception, constrained installer revenue, and capped brand pricing follow. For old building retrofit projects, this single-function upgrade undoubtedly wastes the building's renovation potential.

Europe Is Getting Warmer: Cooling Is No Longer Optional

Rising summer temperatures and improved building insulation increase top-floor and older building overheating risks. Temporary fan coil or split AC solutions create noise and local discomfort.

The emergence of radiant cooling has precisely solved this pain point, achieving a qualitative leap in the comfort of old building retrofits.

Radiant floor cooling provides a silent, uniform alternative, leveraging the building mass for thermal comfort. For retrofit projects with underfloor heating, it activates a year-round comfort solution and is a core highlight to enhance project value in underfloor heating retrofit.

Underfloor radiant cooling layout for heat pump retrofit in European residential buildings

How ROI Doubles

  • Heating only: ~5 months active, 7 months idle
  • Adding radiant cooling: year-round operation, summer demand, perceived value doubles, payback period shortens.

You can quickly calculate through our ROI calculator that the ROI of heat pump retrofit projects can be doubled by integrating radiant cooling.

maximizing heat pump roi with year round radiant cooling

Enabling Cooling Safely in Retrofits

The 8-zone control box with Fixed Supply Water Temperature Logic ensures safe summer cooling without extra sensors or rewiring.

This technical solution has been applied in numerous old building retrofit projects, avoiding large-scale modifications to existing pipelines, reducing renovation costs while ensuring safe use.


Zoning: Control Intelligence Beyond Loops

8 zones allow independent floor and room regulation, seamless heating/cooling switching, transforming winter-only systems into year-round comfort platforms.

This flexible control method not only improves residential thermal comfort but also endows heat pump retrofit projects with competitive advantages, meeting the comfort needs of modern families.

8-zone control box enabling fixed supply water temperature logic for year-round comfort

Functional Premium: Year-Round Comfort Beyond Energy Savings

Heat pump retrofits are more than efficiency devices; they are lifestyle upgrades.

Heating + Cooling + Silent Comfort = Functional Premium. For more technical details, you can refer to our heat pump retrofit whitepaper to gain an in-depth understanding of the integration skills of radiant cooling and heat pump retrofits.


Conclusion

A heat pump moves heat. 5 months → seasonal equipment; 12 months → year-round value.

Radiant cooling unlocks the full ROI of retrofit projects and is the core path to achieve value upgrading in old building retrofits, transforming heat pump retrofits from "seasonal energy saving" to "year-round comfort value-added".

Heat Pump Year-Round Comfort Solution

Retrofit Without Rewiring, One-Click Heating & Cooling Switch

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