General Installation Information - Central Boiler CLASSIC Owner's Manual

PLANNING THE INSTALLATION
Several items must be taken into consideration when
selecting a suitable location for the Classic outdoor wood
furnace. Highlighted below are many of the key items that
must be considered when choosing a location for the furnace.
T Check all pertinent state, provincial, and local codes.
T Check with your insurance company to see if they
have any location requirements.
T Consider the direction that the smoke will travel with
the prevailing winds.
T The shorter the distance between the furnace and
building(s) being heated, the lower the cost will be
for the installation of the supply and return water
lines and insulation. Be sure to maintain the required
clearances to combustibles.
T The water lines from the furnace to the building(s)
should not be buried in low lying areas with standing
water or very high water tables.
T The water lines should not (if at all possible) run
across an area of heavy vehicle traffic. Water lines
that run under heavy vehicle traffic areas should be
protected from excessive compression.
T If the ground where the furnace is to be placed is
either unstable or subject to frost heaving, a concrete
foundation with two 3 foot cement pilings positioned
near the front corners should be installed.
GENERAL INSTALLATION
INFORMATION
The furnace may be installed directly on stable ground
without the necessity of pouring a slab. If the ground is
unstable you may want to either use a perimeter of patio
blocks under the base or pour a concrete foundation.
It is recommended however, that the furnace be installed
on a concrete foundation. Figure 7 identifies the foundation
dimensions and hollowed out area necessary for each model.
A 4 to 6 inch thick concrete slab works well, but a thicker
slab may be used to obtain the desired door opening height.
If the area where the furnace is to be positioned is unstable
and/or affected by frost heaving, before pouring the concrete,
dig two 8 inch holes 3 feet deep at the rear corners of the
slab to provide additional support to keep the slab from
tipping.
WARNING
Do not allow combustible materials (straw, hay, or
wood) near the base. Keep the perimeter of the
furnace clear and clean.
10
Shut-off valves must be installed on each line so the
water lines can be shut off individually for purging air from
the lines if necessary. Be sure all fittings are metal. Do not
use plastic fittings or valves.
Using the following instructions, install and connect a
ground rod (kit p/n 6593) to the furnace. In the water supply
trench near the furnace, drive the ground rod into the ground
until the top of the ground rod is below the ground surface.
Route the ground wire from the ground rod, under the
furnace base, and over to either a vertical brace or the frame
on the furnace. Drill a 1/4 in. hole in the brace and secure
the ground terminal with a cap screw (1/4x20x3/4 in.), star
washer and nut; then secure the ground wire to the terminal.
Secure the ground wire to the ground rod with the clamp.
Tighten all hardware securely.
NOTE: Prior to drilling the 1/4 in. hole in the brace,
check to see if there is already a 1/4 in. hole in the
base for the ground. Some models have a hole
predrilled in the base for the ground terminal.
Fig. 7
Fig. 8
Section 3 - Furnace Installation