InterNACHI

InterNACHI Inspection Graphics Library

 
  • Heat transfer.
  • High and low returns (winter).
  • High temperature limit switch.
  • High temperature limit switch.
  • Horizontal gas-fired furnace.
  • Horizontal gas-fired furnace.
  • Horizontal gas-fired furnace.
  • Horizontal gas-fired furnace.
  • Hot surface ignition.
  • HVAC venting temination clearances.
  • Inadequate air flow between rooms.
  • Induced draft fan.
  • Induced draft fan.
  • Induced draft fan.
  • Induced draft.
  • Inspecting an oil burner.
  • Intermittent pilot light.
  • Internal draft diverter.
  • Mechanical appliance access.
  • Metal flues.
  • Metal flues.
  • Metal flues.
  • Natural draft.
  • Natural draft.
  • Oil burner with flame retention head.
  • Oil burner with flame retention head.
  • Oil burner.
  • Oil tank leakage points.
  • Oil tank leakage points.
  • Oil tanks - areas of leakage.
  • Oil tanks - areas of leakage.
  • One pipe system.
  • One pipe system.
  • One pipe system.
  • One pipe system.
  • Pressure reducing and pressure relief valves.
  • Pressure reducing and pressure relief valves.
  • Pressure reducing valve.
  • Pressure reducing valve.
  • Pressure reducing valve.
  • Pressure relief valve.
  • Pulse furnace heat exchanger components.
  • Pulse furnace heat exchanger.
  • Radiant tubing in concrete.
  • Refractory fire pot.
  • Refractory fire pot.
  • Refractory/fire pot.
  • Refractory/fire pot.
  • Safety devices for a high-efficiency furnace.
  • Safety devices for a high-efficiency furnace.
  • Safety devices for a high-efficiency furnace.
  • Safety devices for a high-efficiency furnace.
  • Series loop.
  • Series loop.
  • Series loop.
  • Series loop.
  • Shrinkage cracks with radiant tubing.
  • Size of vent connector.
  • Tankless coil.
  • Tankless coil.
  • Teflon tape at connections.
  • Teflon tape.
  • Temperature and pressure gauge.
  • Temperature pressure gauge.
  • Two pipe system.
  • Two pipe system.
  • Two-pipe system (direct return).
  • Two-pipe system (direct return).
  • Typical supply and return register locations.
  • Typical supply and return register locations.
  • Typical supply and return register locations.
  • Typical supply and return register locations.
  • Upflow gas furnace.
  • Upflow gas furnace.
  • Upflow gas furnace.
  • Upflow gas furnace.
  • Vent clearances to combustibles.
  • Vent clearances to combustibles.
  • Vent connector size.
  • Vent connector slope.
  • Vent connector slope.
  • Vent connector slope.
  • Vent connector slope.
  • Wood stove.
  • Zone control with pumps.
  • Zone control with pumps.
  • Zone control with pumps.
  • Zone control with pumps.
  • Zone control with valves.
  • Zone control with valves.
  • Zone control with valves.
  • Zone control with valves.

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