Heating Replacement for a Family Home – A Simple Route to a Heat Pump
In a typical family-home neighbourhood in Dübendorf, we replace existing oil and gas heating systems with properly sized air-to-water heat pumps and coordinate the entire project.
Two Buildings, Two Independent Ground-Source Systems
Langäristrasse, Fällanden
2023
Project Description
Which heat generation system makes the most economic sense long term?
The two apartment buildings on Langäristrasse were originally supplied by a shared oil heating system. Before replacing it, we carried out a feasibility study comparing different options for future heat generation and their economic performance. The ground-source heat pump solution proved to be the appropriate choice. At the same time, the two buildings were designed to become technically independent of each other.
Project Description
Two completely independent plant rooms
Each apartment building received its own 50 kW brine/water heat pump, four dedicated boreholes each 260 metres deep, and a separate domestic hot-water system using an external plate heat exchanger. In total, eight boreholes provide 2,080 metres of borehole depth. The heat source, space heating and domestic hot-water systems are now fully independent for each building, with no hydraulic connection remaining between them.
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A Private District Heating Network for Freudwil
Two Fröling wood-chip boilers with outputs of 150 and 60 kW supply houses and apartment buildings in Freudwil through a private district heating network. We installed the central plant, substations and complete connections for the individual heat consumers.
