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U37 Regency ULTIMATE Rear Vent Direct Vent Freestanding Gas Heater 7
INSTALLATION
EXTERIOR VENT TERMINAL LOCATIONS
A= Clearance above grade, veranda, porch, deck, or balcony *(min. 12"/30cm)
B= Clearance to window or door that may be opened *(12"/30cm) #(9"/23cm)
C= Clearance to permanently closed window *(min. 12"/30cm)
D= Vertical clearance to ventilated soffit located above the terminal within a horizontal
distance of (24"/60cm) from the centerline of the terminal (min. 22"/55cm) check with
local code.
E= Clearance to unventilated soffit (min. 12"/30cm)
F= Clearance to outside corner (12"/30cm)
G= Clearance to inside corner (12"/30cm)
H= Not to be installed above a meter/regulator assembly within
(3'/90cm) horizontally from the centerline of the regulator.
J= Clearance to service regulator vent outlet *(min. 36"/90cm)
K= Clearance to non-mechanical air supply inlet to building
or the combustion air inlet to any other appliance *(12"/30cm) #(9"/23cm)
L= Clearance to a mechanical air supply inlet *(min. 72"/1.8m)
#3' (91cm) above if within 10' (3m) horizontally.
M= **Clearance above paved sidewalk or a paved driveway located
on public property *(min. 84"/2.1m)
N= Clearance under veranda, porch, deck, or balcony *(min.
12"/30cm)***
Note: * As specified in CGA B149 Installation Code. Note: Local codes or regulations may require different clearances.
**A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.
***Only permitted if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
# In accordance with the current ANSI Z223.1/NFPA 54, National Gas Code