In the commercial sector, it is important to note that not all new boilers are condensing boilers, although the majority of them are. The energy efficiency regulations and building codes in many countries require the installation of condensing boilers in new constructions or boiler replacements. These regulations aim to promote energy efficiency and reduce carbon emissions. However, there may be exceptions and specific cases where non-condensing boilers are still installed, such as in certain industrial applications or specific building requirements. Therefore, it is advisable to consult local regulations and seek professional advice to determine the specific requirements and options for new boilers in your commercial setting.