CDA HVG621 Directions For Installation, Use And Maintenance page 12

recovery scavenging system
• The connection to the gas supply must comply with all current
regulations in force.
• We are not legally able to offer advice on the installation of gas
appliances to non Gas Safe registered personnel.
Ventilation
All rooms require a window or equivalent (e.g. a door) which can
be opened. Some rooms require a permanent vent in addition to a
window (see below).
This unit must not be used in a room which is less than 5m3. The
following table details the requirements based on the kitchen volume
(L x W x H) in m3.
The above requirements also allow use of a gas oven and grill but if
there are any other fuel burning appliances in the same room, consult
the relevant British Standard (BS5440) or GAS SAFE document.
Room Volume (m3)
5
6 to 10
6 to 11
11 or more
The above requirements also allow use of a gas oven and grill but if
there are any other fuel burning appliances in the same room, consult
the relevant British Standard (BS5440) or GAS SAFE document.
12
Air Vent Required (cm3)
No permanent vent required if a door opens to the outside
None required
100
50