Ritterhof - Heating / Ventilation

In the beginning, the Ritterhof was only heated with individual stoves. In 1998 a gas boiler with wall radiant heating was installed throughout the building. In 2000 the gas boiler was replaced by a log boiler. In 2018, the logwood boiler was replaced by a pellet boiler with optimized storage tank. In the residential house, the kitchen and the living room are not connected to the central heating system, as the stove there is enough to keep comfortable temperatures. The individual building areas are also equipped differently in terms of ventilation: The granny flat, generally renovated with passive house components, has a ventilation system with heat recovery. The architect's office is naturally ventilated (4-5 people on 100m²), but a ventilation system was considered and can easily be added. In the shop, the 36W fan built into the wall allows excess heat to be removed from the salesroom in the morning hours during the summer and cool air to be drawn in via a supply air opening on the north-west side. At the beginning of the renovation measures, the Ritterhof had no connection to the sewage system. Today, the domestic hot water is mainly heated by the pellet boiler, with a solar system supporting the heating and covering most of it in summer.

The intervention improves indoor comfort and does not affect the preservation of the original architectural features as it simply replaces the previous system. The new heating system uses a more economical and sustainable source than the previous system, which also guarantees a higher level of energy efficiency. Ventilation is differentiated according to rooms and uses to ensure a higher level of sustainability during operation.