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Page 19 – Schwank STSp-USA User Manual

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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