Pilot Lights and IIDs for Furnaces

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I am modeling a packaged single zone system with furnace and DX cooling.
The default for the auxiliary load on the furnace is 800 Btu/hr, which I
assume is a pilot light load.

Under table 6.8.1E, the standard says, "Units must also include an
interrupted or intermittent ignition device (IID)." How do go about
modeling the IID or is the energy use insignificant compared to the
furnace energy use?

Sam Mason

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Joined: 2011-09-30
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