Roberts Gorden UHD[X][S][R] 150 User Manual
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6
4.6 High Altitude
These heaters are CSA-approved (without
modifications) for installations up to 2000' (610
m) in US and Canada. CSA approved heaters
installed above 2000' (610 m) must be de-rated.
For installations above 2000' (610 m) in US,
consult factory for information on burner de-
rating. For installations from 2000' (610 m) to
4500' (1370m) in Canada, high altitude
conversion kits are available. Heaters installed
over 4500' (1370 m) in Canada are not CSA-
approved and must be approved by the local or
provincial authority.
modifications) for installations up to 2000' (610
m) in US and Canada. CSA approved heaters
installed above 2000' (610 m) must be de-rated.
For installations above 2000' (610 m) in US,
consult factory for information on burner de-
rating. For installations from 2000' (610 m) to
4500' (1370m) in Canada, high altitude
conversion kits are available. Heaters installed
over 4500' (1370 m) in Canada are not CSA-
approved and must be approved by the local or
provincial authority.