State Water Heaters Utra-Force STC-077 Service Handbook page 8

S U F S E R V I C E H A N D B O O K
I N S T A L L A T I O N
VENTING CLEARANCES
This illustrates the exterior clearances for these SUF units when installed as direct vent heaters.
N O T E : 24 inches between inlet and outlet is a MINIMUM. Greater distance is recommended.
In colder climates increasing the 24" minimum to a maximum practical distance will reduce the
possibility of frost over from side winds blowing exhaust vapors into the air intake.
SUF MODEL 150 – 199
SUF MODEL 240
State Water Heaters Technical Training Department
7
Ashland City, Tennessee © 2004 STC-077