Question 4229 — housing

Summary

Mr. Bastien Marchive draws the attention of the Minister to the Minister of Regional Planning and Decentralization, responsible for housing, to the difficulties linked to the production and collective distribution of domestic hot water (DHW). This very energy-intensive mode of operation represents a blind spot in the energy renovation process for collective buildings. Indeed, energy audits reveal that Collective DHW production and distribution systems require energy consumption 2.5 to 5 times higher than that of individual solutions, due to the permanent maintenance of a high temperature. In addition, this causes significant thermal discomfort for residents, particularly in summer, because the distribution columns radiate significant heat into homes. Despite these findings, the technical design offices (BET) and heating engineers do not include the removal or modification of these collective systems in the work plans, due to the constraints imposed by article 10 of the law of July 10, 1965. This article provides that any co-owner must contribute to the financing of "common utility equipment", making their removal or modification almost impossible, the change of system implying a unanimous vote of the co-owners. However, the individualization of hot water production, with the installation of modern and efficient hot water tanks, would constitute a more energy-efficient, more comfortable solution that meets the challenges of energy transition. In this context, he asks if the Government plans to remove the collective hot water system from public utility equipment in article 10 of the 1965 law, in order to facilitate the individualization of domestic hot water production systems in co-ownerships and whether specific measures could be taken to encourage these adaptations.

Machine translation from French. The official text remains authoritative.

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