Schwank STSp-USA - Manual (Page 23)

SP-MSTP-AU-05A
STS-p Manual
RD: DEC, 2003
RL: 5
KH
14. HEATER EXPANSION
Due to the characteristics of tube heaters,
the installer must allow for 1” expansion for
every 10’ length of tube. In order to address
this characteristic, it is suggested that the gas line, flue vent, and combustion air
intake (if used) shall be installed in such a
manner, that the normal expansion of the
heater will be accommodated.
FIGURE 19 ALLOWANCE FOR HEATER EXPANSION
TOP VIEW
FLUE VENT
FLANGED TUBE
Air Intake Vent
Page 19