Water-side has been mandatory since March this year if you replace the central heating boiler. The Vereniging Eigen Huis (VEH) raised the alarm about this this week, because hardly anyone is aware of this new legislation, which the ministry has implemented “with silence” according to VEH.
VEH want That is why Minister Ollongren of the Interior is going to explain clearly and precisely how it all works. Installation.nl is already running through the list of measures that must be taken.
The new rules ensure that heating installations in homes are properly adjusted on the water side when a central heating boiler, hybrid boiler or heat pump is replaced. Even if the radiators are replaced, hydronic balancing is mandatory for the new radiators
Old houses
The obligation does not apply in homes where hydronic balancing is not technically possible. This is the case, for example, in old houses where no temperature control is possible per radiator. And this is necessary for installations in homes that have already been adjusted on the water side not again to happen. It is up to the on-site installer to assess whether this is the case.
Just adjusting a foot valve is not always enough. According to the rules, ‘self-regulating equipment’ must also be installed. Examples are a thermostatic radiator knob, a room thermostat, a thermostat for a fan coil unit or building automation and control systems that regulate the temperature per occupied space or area.
Maximum amount
The obligation does not apply if the costs of installing this equipment exceed 20% costs of the heating installation. This is the case, for example, in a house with 11 radiators where a relatively cheap central heating boiler (for a maximum amount of € 1,500) is replaced and an installer would install thermostatic radiator valves (for an amount of more than € 330).
Enforcement
The new rules stem from the renewed European guideline Energy Performance of Buildings. They are processed in Dutch regulations (Building Decree) and in force since 10 March. The enforcement party is the municipality. It is responsible for enforcing the Building Decree. This also applies to these obligations. Initially, the municipality will enforce it in response to complaints, both for new and existing buildings.
This new obligation of hydronic balancing is different from that for which it was last year in vain advocated in the Lower House. This was about commercial buildings from a certain energy consumption. The current rules apply to all buildings, including homes.
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