BS EN 15544:2023 β a British Standard with zero regulatory function
Masonry heaters meet limits on 5 pollutants, achieve β₯80% efficiency, and produce a fraction of the emissions allowed under current UK limits. France inscribed the same standard in their Tax Code. Austria uses it for legal compliance. The UK gives it zero regulatory function.
10-part executive dossier submitted to Defra β covering the regulatory anomaly, heater typology, scientific evidence, legal framework (BS EN 15544 & 15250), the French AFPMA model, and the 850Β° Grundofen position.
Read online β β Download .docxInteractive dashboards β click any card to explore
Austria, EU, US, UK + masonry heater data. PM normalised to g/hr at 5kW.
Full Nordic expansion β Norway, Denmark, Sweden, Finland + 5 core regimes.
US vs UK vs EU vs Austria β unit-by-unit regulatory comparison.
Lopez Labs (185+ test runs), Finnish VTT, OMNI, EPA β the full empirical record.
40+ years across Austria, US, France, Nordic countries, and the UK.
The French AFPMA model, UK 5-year roadmap, calculator software, campaign plan.
The organisations behind the global masonry heater movement