VDI 4640 Blatt 2:2019-06
Current
Current
The latest, up-to-date edition.
Thermal use of the underground - Ground source heat pump systems
Amended by
Available format(s)
Hardcopy , PDF
Published date
01-06-2019
Publisher
The guideline focuses on the design and installation of heat pump systems that use the underground as a heat source.
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