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INST 396 Jacuzzi® J-HN Series Heater V12-16 
 
INDOOR FLUE INSTALLATION 
For indoor installations a 5” (125mm) flue and termination cowl must be fitted to the heater.  The heater may be installed with a 
maximum of 52 feet (15 meters) of flue including 3 bends or of 26 feet (8 meters) of flue with a total of 5 bends. 
The flue and termination cowl must be ordered from www.Jacuzzipool.com 
 
Part # 78285  13 feet (4 meters) spiral flue with termination cowl 
 
Part # 78249  13 feet x 5” ( 4 meter x 125mm) flue extension (maximum of three additional to make a total length of 52 feet 
(16 meters)  
Note; Maximum length for HiNRG 400 Propane is 28 feet (8.5 meters 
Heater must be installed to local or state regulations.   Access and suitable working areas must be available to the heater. 
Flue pipe is supplied with a galvanized sleeved end for the external application and an non sleeved aluminum end for fitment to 
appliance.  The flue pipe can be cut shorter with a knife/saw.  
 
 
 Pool Heater – Outdoor Model. 
Using a Phillips Head Screw driver 
unscrew 4 x Screws from Flue Cover 
Plate. 
Remove Flue Cover Outdoor Insert. 
Pre bend the flue where required.  
Bends are made by curving the flue pipe 
around a gentle radius such as a pipe or 
knee.  Do not over bend and kink flue 
pipe.   Keep bends to a minimum and 
use as large as radius as possible.  
Minimum internal radius is 10”(250mm).  
 
Bends can be straightened if required.