Under Building Regulations Part L (England and Wales), zoning is required in new dwellings with a floor area over 150m², with a minimum of two independently controlled heating circuits (typically separating upstairs sleeping areas from downstairs living areas). For smaller homes, a single zone with room thermostats and TRVs (Thermostatic
Heating engineers will soon see open protocols become a regulatory requirement and a customer expectation. So, what are they? Open protocols allow controls and boilers to exchange information in real time, enabling the boiler to modulate output to match heating demand precisely, rather than using inefficient on/off cycling. Upcoming regulations
Open protocols are set, non-proprietary communication standards that allow smart heating controls and boilers to ‘speak’ to each other, regardless of manufacturer, sharing data such as flow and return temperatures, sensor inputs, and fault codes. Historically, many heating systems used a basic on/off control, where a thermostat would demand heat,
