Do open plan houses and two storey houses with large stairways need to be zoned?
A. Large open plan homes and two storey houses allow heat to travel through them easily. This means more energy is required to heat them than if they could be divided into smaller areas. Zoning, by incorporating doors, can often be done in the early planning stage. They can be `in wall’ sliders if you only want them for winter periods, and don’t want them to show at other times.