eF Series Heater
Installation Check List
Product Handling
- Carefully uncrate the heater. Move in place with a hand truck (Do not use
the venting pipes for handles).
Electrical Requirements
- Make sure there is 120 volts line voltage. Line voltage must be
properly polarized. Adequate ground supplied to the heater.
Venting Requirements
- All venting must stay within the required lengths and diameter (see
table below). Proper support of the venting pipe is a MUST (every 5ft vertical and 3ft horizontal).
Termination must be located to prevent re-circulation of flue gases. Medium to log sweep 90°
elbows are recommended.
Gas Requirements
- Gas piping sized adequately, ¾" or larger to heater. Install a properly sized
regulator (if unknown, assure an adequate volume of gas is available). 7" W.C. is required when the
unit is running. Gas pressure must stay below 14" W.C. static pressure. Pressure drops between
static pressure and operating flow should be less than 3" W.C.
Condensate Requirements
- Condensate line needs to slope to a drain at a minimum of ¼"
per foot. Make sure the condensate line does not have the potential to freeze. If using more than
one heater and using a common condensate line, make sure the condensate line is properly sized.
Service/Mechanical Room
- Provide adequate space for servicing heater. Leave room to get
to the top and bottom pressure switches as well as enough overhead room to remove the anode
rods for servicing (18" min.).
Balanced Direct Vent Systems
PVC, CPVC or ABS
Total length of intake piping and exhaust
piping added together must not exceed
“Maximum Combined Length”
Shown below
Maximum Combined Length (feet)
Model Number 3"
EF60T125, EF100T150 120'
EF60T150, EF100T199
EF60T199, EF100T250
EF100T300
Unbalanced Direct Vent Systems
Air intake CAN NOT exceed exhaust by
more than 30 feet
100'
80'
60'
4"
170'
150'
130'
110'
Power Vented Systems
PVC, CPVC or ABS
Total length of exhaust piping must not
exceed “Maximum Vent Length”
Shown below
Maximum Vent Length (feet)
Model Number 3"
EF60T125, EF100T150 120'
EF60T150, EF100T199
EF60T199, EF100T250
EF100T300
100'
80'
60'
4"
170'
150'
130'
110'
Vent tables
Note: each 3" & 4" 90° Elbow is equivalent to 5 feet of straight pipe.
Note: each 3" & 4" 45° Elbow is equivalent to 2.5 feet of straight pipe.
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