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Section 3
Installation Details
3.1 Gas Requirements
The fire table should be placed on a flat and level surface. It will arrive with the burner and burner plate
set inside the unit. Burner hardware has been installed at the factory but will need to be checked for
proper tightness after transportation. Refer to the corresponding section below for set‐up on your unit.
All units must have clearance to combustible surface of 4ft on sides & 6ft from the top. Refer to the
section below for the according to the gas type you purchased. Contact technical support if an orifice
change is required. Tech‐support@prismhardscapes.com.
3.1.1 Natural Gas
Gas Pressure: 7 inches water column
Gas Input Flow: 65,000 BTUs/HR (Manual Ignition), 85,000 BTUs/HR (PH‐Ignite), Up to 125,000 BTUs/HR
with orifice change.
Prior to installation, a gas professional will need to run a gas line underground below the foundation
where your fire feature will reside. In order to do this, your gas professional will first need to determine
the best pipe size based on fuel input requirements (BTU's/HR), gas pressure and distance from gas
pressure regulator to fire feature. Once you have created a trench underground for your pipe, the
stubbed‐out end should be fitted with a ½" NPT ball valve shutoff (rated for gas usage) and a flare fitting
sized for the same size gas hose that is attached to the key valve and burner. Connect your flex hose to
the stubbed‐out gas pipe then connect the other end to the key valve in your fire feature. The arrow on
the key valve should be pointing the direction of the gas flow (towards the burner plate on your fire
feature). Tighten all fittings with a wrench, do not hand tighten! Test the gas lines for leaks and loss of
pressure over a 24‐hour period. When you are finished testing and have found no leaks, cover the pipes,
level the ground and finish setting the foundation. Once everything is tightly sealed and connected,
gently place your burner plate back down into your fire feature; your fire table is now ready to be
positioned in its final location.
Note: Check with your gas supplier to verify gas flows and pressures available at the location of your
installation. In many cases utility companies will install larger meters at no charge to accommodate
larger flows.
3.1.2 Propane Gas
Gas Pressure: 11 inches water column
Gas Input Flow: 65,000 BTUs/HR (Manual ignition), 85,000 BTUs/HR (PH‐Ignite), Up to 125,000 BTUs/HR
with orifice change.
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