This document specifies product characteristics, assessment methods and how to express assessed
results of Earth-to-air heat exchanger systems, also called earth-to-air heat exchangers, are made up of
cast iron pipes, fittings, joints and accessories. They are designed for use in residential buildings, both
individual and collective, and in non-residential buildings (establishments open to the public, tertiary
sector premises, technical premises, industrial or agricultural buildings, infrastructures) for new
constructions or renovations.
The nominal diameters of the cast iron pipes usually used for this application are 150, 200, 300 and
500mm.
Cast iron includes lamellar graphite cast iron and ductile cast iron.
Registration number (WIID)
82218
Scope
This document specifies product characteristics, assessment methods and how to express assessed
results of Earth-to-air heat exchanger systems, also called earth-to-air heat exchangers, are made up of
cast iron pipes, fittings, joints and accessories. They are designed for use in residential buildings, both
individual and collective, and in non-residential buildings (establishments open to the public, tertiary
sector premises, technical premises, industrial or agricultural buildings, infrastructures) for new
constructions or renovations.
The nominal diameters of the cast iron pipes usually used for this application are 150, 200, 300 and
500mm.
Cast iron includes lamellar graphite cast iron and ductile cast iron.
