2C-2. Outdoor Installation
Laars Hot Shot heaters are design certified only
for outdoor installation. The heater should be installed
as received from the factory, in accordance with this
manual and following all federal, state and local codes.
Any attempt to modify the heater may cause personal
injury, property loss or death and will void the war-
ranty.Locate the heater in an open, unroofed area.
Do not install the heater under a deck. Do not locate
the heater below or adjacent to any doors, glass
openings,louvers, grills, etc.,which connectin any
way with an inhabited area of a building, even though
the access might be through another structure (e.g., a
garage or utility room. In the United States there must
be a minimum of 4 feet (1.2 m) horizontally or verti-
cally between the heater and any door, glass opening,
or gravity inlet to a building. In Canada this distance
must be at least 10 feet (3.0 m) (see Figure 2).
Be sure that the heater is installed away from
traffic areas such as walkways or pool ladders. It is
recommended that the heater be enclosed by protec-
tive fencing to prevent accidental contact with hot
surfaces.
WARNING
United States
Do not install the heater with the top within 4
feet (1.2 m) of any opening into a building.
Canada
Do not install the heater with the top within 10
feet (3.0 m) of any opening into a building.
If the heater is installed under an overhang, there
must be a minimum clearance of 5 feet (1.5 m) above
the top of the heater and the structure should not
overhang the heater more than 12 inches (0.3 m). The
area under the overhang must be open on three sides.
This prevents combustion gases from being diverted
intoliving areasthroughdoors,windows,or gravity
inlets.
If the heater is installed close to a structure,
protect it from rain water runoff with rain gutters on
the roof or other measures. Do not locate the heater
near sprinkler systems that could spray water on it. Be
sure to locate the heater where oversplash from the
pool will not damage the heater.
Avoid locations where wind deflection off nearby
structures might cause downdraft conditions. Where
downdraft conditions exist, locate the heater at least 3
feet (0.9 m) from vertical surfaces (e.g., nearby
buildingsandwalls). WARNING
Laars Hot Shot heaters are design certified only
for outdoor installation. Any attempt to modify
the heater for any other use may cause per-
sonal injury, property damage or death and will
void the warranty.
2D. Gas Supply and Piping
2D-1. General Instructions
Review the following general instructions before
continuingtheinstallation.
WARNING
Do not convert this heater from natural gas to
propane gas, or propane to natural. Field
conversion could create carbon monoxide gas
which can cause property damage, serious
injury, or death.
1. Gas piping installation must be in accordance
with the latest edition of ANSI Z223.1 and all
local codes. In Canada, the installation must be in
accordance with CAN- B149.1 or .2 and all local
codes that apply.
2. Check the rating plate to make sure the heater is
fitted for the type of gas being used. Laars
heaters, as shipped from the factory, are certified
to operate within a specific altitude range.
a) In the United States, the altitude range speci-
fied is 0 to 3000 feet (0 to 915 m) above sea level
for natural gas and 0 to 5000 feet (0 to 1525 m)
for propane gas.
b) In Canada, the heater rating plate is marked
for specific altitude requirements: 0 to 2,000 feet
(0 to 610 m) above sea level for natural gas and
0 to 4500 feet (0 to 1370 m) for propane gas.
3. Use the figures in Table 2 to size the gas inlet
piping from the gas meter to the heater. Check
alllocal codes for compliancebefore installing
the heater.
Figure2. Outdoor HeaterInstallation.
ModelLHS Above Ground Pool & Spa Heater Page 3
