When heat output claims don't add up: why compliance matters for installers
Concerns raised by MARC in collaboration with the OPSS highlights radiators being marketed with non-compliant heat outputs
We help to future-proof our building stock with a wide range of suitable heating and cooling solutions for the renovation of residential buildings worldwide.
In large residential buildings and apartment blocks, heating and cooling systems can use a tremendous amount of energy. In light of the net zero targets, energy-efficient and eco-friendly heating and cooling solutions are therefore a vital part of any residential building renovation. These make the various rooms/apartments more efficient and less expensive to run, but also significantly reduce the building’s carbon footprint.
The residential market needs a range of flexible heating, cooling and ventilation solutions that can be combined with a centralised or autonomous system but also match the needs and lifestyle habits of the various residents. Apartments that are in constant use, for example, might need a renovated radiator system, while holiday apartments can easily be made more energy efficient with modern electric radiators or fan convectors.
Product innovation and technology thankfully make it easier than ever before to switch to environmentally friendly heating and cooling solutions. Heat pumps, for example, can be used in both autonomous and centralised systems. They allow for the reduction of CO2 emissions by more than 30% compared to other heat generation systems.
In new build residential projects efforts are often made to create synergy between the various apartments as this increases efficiency during the building process as well as in the user phase. In the renovation of a residential building this synergy can be difficult to maintain. Yet, in case of a complete building renovation it will pay to do so, both for the energy efficiency of the building and the comfort of the residents.
However, it may also happen that not all units in the building are renovated at the same time. This can be quite challenging in case of a centralised system, yet there is still room to decide on the best radiators or fan convectors for the renovated unit with the help of our heat demand and heat output calculators. In case of an autonomous system, it is much easier to switch, for example, to a low temperate system with underfloor heating or ultra-low temperature radiators.
Whether it’s a building or single apartment renovation, it’s important to also think about the best controls in order to enjoy all the benefits of the renovated HVAC system. At Myson we offer a wide range of hydronic and electronic controls so that there is always a good fit for the system at hand.
We offer a wide range of heating and cooling solutions for renovations.
We offer a wide range of heating and cooling solutions for new builds.
Concerns raised by MARC in collaboration with the OPSS highlights radiators being marketed with non-compliant heat outputs
Chris Hone, GB Sales Director at Purmo Group UK, will join a panel of industry experts at InstallerSHOW 2026 to discuss the growing issue of illegal radiator heat output claims and what installers need to know to protect their customers.
Myson's products to feature within The HAUS, a full-scale, two-storey low-carbon home located at the heart of the show’s InstallerBUILD zone.