HTP EFT-399 - Manual (Page 47)

47
LP-387 REV. 6.10.14
VENT / AIR INLET SIZE MINIMUM EXISTING VENT / CHASE SIZE
3” 5”
4” 7”
Table 13 – Minimum Vent / Chase Sizing
2. VENTING AS A CHASE
When venting as a chase, follow all instructions included in Part 6
– Venting, of this manual, as well as the previous Concentric Venting
section. See Figure 25 for chase venting demonstration.
Figure 25 – Existing Venting as Chase NOTE: Drawing is
meant to demonstrate system venting ONLY.