Dickinson P9000 Operating And Installation Instruction page 11

11
Mounting
Secure the heater mounting plate directly onto the mounting surface. No
additional insulation is required. Use appropriate fasteners for mounting.
Chimney Pipe
The stainless double walled flue pipe that is included with the heater is 28"
(71cm) long. Four springs are between the inside and outside pipe to ensure
that an even air space is provided. It is important that two springs be located
at any bend in order to prevent the pipes from touching.
Extensions are available in 10" (25.4cm) part# 19-005 and 28" (71cm) part#
19-000. The maximum total length of the flue exhaust pipe can be 56" only.
Locate your heater so the distance between the heater and the pipe conform
to the available pipe lengths.
We do not recommend you cut the pipe but the pipe can be cut with a fine
hacksaw blade to the required length. To do so, twist the pipe to tighten the
pipes flexibility, then tape the end of the pipe and install a hose clamp on the
side of the pipe that you are keeping. This is so the clamp is left on the pipe
and only removed after or during installing. Cut with fine tooth hack saw
blade then use a round file to remove the large burrs in the inside of the pipe.
Use caution as the flexible pipe can be easily damaged.
Locate and run the vent pipe such that no low points occur where water or
debris can accumulate and thus block the exhaust or intake. The direct vent
chimney is flexible and can be bent to provide any angle of offset. The
chimney pipe can also exit horizontally at a 45°.