4. Battery Cell Installation
Do not confuse the positive and negative ends of the D cells. (Fig.8)
5. Flue Installation
As this water heater is flue type, the waste gas exhaust pipe must be installed. (Unless you are
using this heater outdoors in the open) (Fig. 9) Basic requirements:
The inner diameter of the flue: ∮90mm. (3.54 inches)
The main body of the flue must be made of stainless steel material.
The horizontal part of the flue shall have a minimum of 1% down inclination, and there shall
be a ½ inch hole at the bottom of the vertical part of the flue outside the room for the
purpose of draining water condensation or rain droplets.
The outlet of the flue must have a windproof cap, which should not be clogged.
Installation method:
Drill proper holes in the wall according to the dimensions of the heater and install a certified
wall thimble of class-III stainless steel. Contact your inspector or plumber for code
requirements in your area.
Insulate the gaps or openings with high temperature tolerant non-flammable materials.
Fig 9
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