GQ pg. 10
20"
(51cm)
4" (10cm)
OD TYP.
6" (15cm)
TYP.
16"
(41cm)
HEATER CONFIGURATIONS
Low-intensity heaters can be arranged in many configurations; some common ones are illustrated below. It
is important to limit the number of bends since each bend slows the movement of air inside the tube,
resulting in decreased efficiency.
1. The
first twenty feet
(6.1 m) of radiant tube extending from the burner must be installed
straight
[
EXCEPTION
: a 15 foot (4.6 m) or 20 foot (6.1 m) heater may have a 180° U-bend interposed after the
first 10 feet (3.0 m)].
2. Each system can use a maximum of
two
(2)
16 gauge (.17 cm) aluminized steel 90° elbows,
OR
one
(1)
16 gauge (.17 cm) aluminized steel 180° U-bend. Elbows and U-bends can not be used
simultaneously
in the same system.
3. All tube sections of a unit must be mounted on the same horizontal plane. For exceptions or other
configurations, consult factory.
4. Special reflectors are available: 90° elbow reflector, 180° U-bend reflector, side extension reflector and
inverted V-deflectors. Contact factory for more information.
5. Use factory accessory elbows and U-bends only.
180° U-BEND
90° ELBOW
CONFIGURATION DIAGRAMS
Note: Not all units can utilize every configuration.
12" (30cm) TYP.
4"
(10cm)
TYP.
4" (10cm)
OD