The full safety inspection. One house, every check, the complete series in a single call. The series finale.

Before you touch anything, the code's own inspection annex sets the order. First, the people: detectors on, calibrated, and sampling the moment you step inside — carbon monoxide and combustible gas, just like episode six. High readings mean evacuate first, diagnose later. Tell the occupant what you're doing and which appliances go dark. Manometer in the bag from episode one. Only when the air is proven safe does the inspection begin.

Station one: the meter set. Episode one's regulator gets its checkup — vent screened, clear, pointing down, and outlet pressure that locks up and holds when flow stops. Episode two's meter gets a look: level, undamaged, connections tight. Soap or a detector on the risers and fittings — any suspect hit gets confirmed with solution before you call it a leak.

Now walk the pipe. Materials you can trust from episode nineteen. Support and protection from episode twenty-two — no sagging spans, nothing bearing on the tubing. A shutoff and a sediment trap at every appliance, episode nine. Corrugated stainless tubing bonded per episode eleven. Any buried or underground segments accounted for, episode twenty-one. The annex says leak-check every fitting in the appliance space — solution is the referee.

Every appliance in turn, in the annex's order: shut off gas and power, tag the valve, inspect cold. Combustion air openings clear, episode four. Clearances to combustibles honored, episodes thirteen and fourteen. Burners, controls, and heat exchanger surfaces examined, episodes seven and twelve. Then restore power and relight following the manufacturer's instructions — pilot safety devices proven, flame color steady, no lifting or flashback, and a clean shutdown.

The venting interrogation. Visual first: every vent and connector sound, sloped, and supported — episodes three, eight, and sixteen. Then set the house to worst case: doors and windows closed, exhaust fans on high, air handler running. Fire the smallest appliance and test each draft hood for spillage — smoke or a mirror after five minutes if the manufacturer gives no method — then everything together, episodes three and seven. Sealed-combustion joints and terminations checked, episodes fifteen and eighteen. Common vents re-proven after any equipment change, episode seventeen.

Now the numbers. Delivered pressure at the meter, manifold pressure at each appliance, and inputs clocked against the nameplate — episodes two and seven. But remember the series rule: paper never overrides reality. A perfect table reading does not excuse a spilling draft hood or a lazy yellow flame. The observation wins, and the appliance stays off until the cause is found.

Finish the way the annex finishes: put it in writing. Record what you measured, what passed, and what failed. An unsafe appliance gets shut off, tagged, and the owner told plainly. A confirmed leak that can't be made safe means the gas supply goes off and stays off until repairs are made. Classification and response follow your company's procedures — always.

And that's the whole series on one wall. Pressure: regulator, meter, manometer skills. Piping: materials, sizing, supports, traps, bonding, underground. Air: combustion air and clearances. Venting: draft hoods, connectors, categories, common vents, terminations. Appliances: furnaces, water heaters, controls. Procedure: leak checks, purging, and today's full inspection. Twenty-eight episodes, one discipline — measure what you can, trace what you can't, prove it before you leave.

Measure — instruments first, calibrated and zeroed. Trace — every foot of pipe and vent. Prove — worst case, under load, per the manufacturer. Document — in writing, every time. Twenty-eight episodes. The whole code book. Study safe — and work safer.