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.
75 kW from the Air for Two Apartment Buildings
At Chupferplätz, Gutenswil
Autumn 2023
Project Description
When geothermal boreholes are not an option
The two apartment buildings in Gutenswil were jointly heated by a 75 kW oil boiler. When the heating system was due for replacement, geothermal boreholes could not be approved at this location. Large air-to-water heat pumps in this output range were still far from commonplace at the time. Heim had just introduced a unit with 75 kW heating output, creating a new option for this project.
Project Description
From the land reserve to the plant room
The 75 kW air-to-water heat pump was installed on an available land reserve within the development. From there, we routed the pipework through the underground car park and across two basement levels to the plant room in the furthest building. The heat pump was then integrated into the existing heat distribution system. Today, it supplies both apartment buildings with space heating and also provides domestic hot water via an external plate heat exchanger. The heat pump is connected online, allowing faults to be detected remotely so that we can respond quickly when required.
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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.
