As a passive house consultant, I am often asked whether underfloor heating is necessary in a passive house. The answer is that it depends on the specific design and energy efficiency goals of the building, as well as the local climate and other factors.
Underfloor heating can be an effective way to heat a passive house, as it provides a consistent, even heat throughout the home. This can be especially beneficial in passive houses, which are designed to be highly energy efficient and to minimize the need for heating and cooling.
However, underfloor heating is not necessarily required in all passive houses. In some cases, it may be possible to achieve the desired level of energy efficiency and comfort using other methods, such as insulation, airtight construction, and passive solar design.
When considering underfloor heating for a passive house, it is important to carefully consider the specific design and energy efficiency goals of the building. Underfloor heating can be an effective way to heat a passive house, but it is not always the most cost-effective or energy efficient option.
Overall, the decision to use underfloor heating in a passive house will depend on the specific needs and goals of the building, as well as the local climate and other factors. It is important to carefully consider these factors and to consult with a passive house consultant or other qualified professional to determine the best heating strategy for the building.