CAMBRIDGE HEAT HTSB1 Use & Care Manual page 13

The island must be built out of non-combustible material. In the event it is
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combustible, the use of an insulation jacket is required.
Protection from weather: Keep the appliance protected from adverse weather,
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including rain and wind. Wind, particularly coming into the rear of the appliance,
can affect the exhaust from escaping from the appliance. This can back up the heat
behind the control panel potentially creating a gas leak, damage to the product,
and injury. A wind block behind the appliance may be necessary.
Maintain minimum clearance to adjacent combustible construction at 24" from
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sides and 24" from back.
At least two vents are required for every island.
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Failure to adequately vent your outdoor kitchen cavity could
LP/Propane Gas: LP gas is heavier than air and will settle to the lowest levels of the outdoor kitchen. It
is imperative to provide adequate cross ventilation for the areas where gas can accumulate at these
lower levels of the island cavity. Should the propane cylinder be located in the outdoor kitchen itself, a
plenum wall is required to separate the gas source from the other areas of the outdoor kitchen (picture
shown in owner's manual), and both the cabinets containing the gas appliances and the gas tank
should be ventilated appropriately. If a plenum wall is undesirable, HEAT offers a propane tank drawer
as an alternative.
NG/Natural Gas: Natural gas is lighter than air and will rise to the highest levels of the outdoor kitchen.
It is imperative to provide adequate cross ventilation for the areas where gas can accumulate at these
higher levels of the island cavity.
result in an explosion or fire.
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