Installation Clearances And Clearance To Combustibles; Figure 2. Outdoor End Clearances - Calcana CAL Series Installation, Operation, Service, And Parts Manual

CAL-SERIES
6.0

INSTALLATION CLEARANCES AND CLEARANCE TO COMBUSTIBLES

Installation of overhead heaters in garages or hangars MUST meet the requirements for bottom (below)
clearances detailed in CANADA: Natural Gas and Propane Installation Code, CSA B149.1 or latest edition or
USA: National Fuel Gas Code, ANSI Z223.1/NFPA 54, or latest edition.
WARNING: I
n all situations, clearances to combustibles must be maintained. Minimum clearance
from heater must be maintained from vehicles parked below heater. The posting of signs may be
required in storage areas referring to clearances to combustibles to the heater and/or limiting the
stacking height of stored Items near the heater specifying a maximum height. Clearances are not for
use in four (4) sided enclosures. Certain materials or items, when stored under the heater, will be
subjected to radiant heat and could be seriously damaged.
WARNING
: The stated clearance to combustibles represents a surface temperature of 90°F (32°C)
above room temperature. Building material with low heat tolerance (such as plastics, vinyl siding,
canvas, tri-ply, etc) may be subject to degradation at lower temperatures. It is the installer's
responsibility to assure that adjacent materials are protected from degradation. When in doubt, check
heat tolerance of building material(s) with their manufacturer.
END CLEARANCES
(BURNER HEAD END)
Minimum clearances from air intake end of burner head to object is 12" (30.5 cm).
Provide adequate accessibility clearances for servicing and proper operation. Do not install unit in such a
manner that the combustion air entering the heater is reduced in any manner
OUTDOOR APPLICATIONS ONLY
(EXHAUST END)
OUTDOOR
APPLICATIONS
ONLY

Figure 2. OUTDOOR END CLEARANCES

9
WARNING: DO NOT INSTALL
IN RESIDENTIAL GARAGE
WITHOUT AN APPROVED
VENTING SYSTEM.
For
Brooder use and some
industrial applications,
unvented installations are
permitted.
In these applications refer
to page 44 for details on
clearances and ventilation
requirements.