Enviro 828 MH Manuel D’Utilisation

A= Clearance above grade, verandah, porch, deck, or 

[balcony (*12 inches (30cm) minimum] 

B= Clearance to window or door that may be opened   [*12 

inches (30cm) minimum] 

C= Clearance to permanently closed window [minimum 12 

inches (30cm) recommended to  prevent condensation on 
window] 

D= Vertical clearance to ventilated soffit located  

above 

the terminal within a horizontal   distance of 2 feet (60cm) 
from the center-line  

of the terminal [24 inches ( 60cm) 

minimum] 

E= Clearance to unventilated soffit [18 inches  

(45cm) 

minimum] 

F= Clearance to outside corner [12 inches minimum] 

G= Clearance to inside corner [ 12 inches minimum] 

H= *Not to be installed above a meter/regulator assembly 

within 3 feet (90cm) horizontally  from the center-line of 
the regulator 

I=  Clearance to service regulator vent outlet [*6 feet   (1.8m) 

minimum] 

J= Clearance to non-mechanical air supply inlet to building or 

the combustion air inlet to any   other appliance [12 
inches (30cm) minimum] 

K= Clearance to a mechanical air supply inlet [*6  

feet 

(1.8m) minimum] 

L= *** Clearance above paved side-walk or paved driveway 

located on public property [*7 feet  

(2.1m) 

minimum] 

M= Clearance under verandah, porch, deck, or balcony [*24 

inches (60cm) minimum **] 

*** A vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves 
     both dwellings ** 
  Only permitted if verandah. Porch, deck, or balcony, is fully open on a minimum of 2 sides beneath the floor 

 

• 

As specified in CGA B149 Installation Codes (1991) Note: Local Codes or Regulations may require different clearances 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

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