Please read these instructions thoroughly before starting your installation
Installation Instructions for the Shower-Mate Water Heater
The Shower-Mate water heater is designed to be installed in an area that is accessible for servicing and is well
ventilated. At least 20 square inches of incoming air is necessary and the power vent of the unit should always
be vented to the outside with 2” approved duct.
NEVER
install heater in such a manner that is not vented to
the outside. Doing so will void the warranty and cause the heater to malfunction and could result in serious
injury or death. Terminus of flue outside boat should be above the water line and not closable.
Selecting Installation Location
The water heater must not be installed in an area where the air intake can be covered and there is an opening
to the outside of at least 20 square inches to supply combustion air. It should be mounted so that the 2” duct
can be one continuous length to the outside of the boat and above the waterline. The water heater should be
located in an area where leakage will not result in damage to other items or the boat structure. Install the
heater as close to the gas supply as practical to minimize length of the gas line.
Although the ShowerMate can be mounted with zero clearance around the sides, top and bottom, be sure that
the installation does not interfere with any wiring, plumbing inside the boat. There should be ready access to
the front access cover for servicing and the fittings on the back and allow for the routing of the gas line into the
back of the case.
Mounting Unit
Unit should be located to allow hookups on the back and access to the front panel for servicing. Note
the locations of the bottom combustion air opening and mounting holes.
1. Mount the 2 brackets to the bottom of the unit on either side using the supplied 1/4” bolts.
Illustration 1.
2. Cut 2 - 3/4” thick spacers the length of the mounting bracket and locate under mounting brackets
to maintain 3/4” space under unit for combustion air to enter bottom.
3. Place unit and spacers into place to locate 4 mounting holes and mark their positions.
4. Remove the unit and drill the 4 pilot mounting holes in the mounting surface.
5. Screw or bolt unit and spacers into place.
NOTE: Optional mounting studs with rubber spacers can be use to mount the unit. Illustration 2.
These will provide the proper clearance under the heater for combustion air without the need to
cut spacers.
Illustration 1
Illustration 2
