Report writing craft
Water heater narratives, one appliance, a dozen findings worth pre-writing
TPR valves, discharge piping, venting, age, and the drip pan. The water heater's complete narrative set, from clean pass to before-continued-use.
By Owen Murray, founder of InspectorKit · Updated July 6, 2026
Every house has one, every buyer ignores it, and every inspector writes it up forty times a year. The water heater is the report's most repeated appliance, and its findings run the full severity range, from a clean functional line to a before-continued-use safety call. That combination, repetition plus stakes, makes this the single best page in the house to have language pre-built, refined once, and loaded in your library.
The clean pass, banked in two sentences
The water heater was operating at the time of inspection, with no visible leakage at the tank, connections, or relief piping. Based on the data plate, the unit is within its typical service range.
Affirmative findings earn their space here more than almost anywhere, because the water heater is a known buyer anxiety with a known price tag. Two sentences of observed normalcy answer the question they were already asking.
Age, when it applies, gets its budgeting frame. The unit is operating and, per the data plate, is near the typical end of its service range for tank-type heaters. Recommend budgeting for eventual replacement. No defect label on a working heater, per the calibration discipline, and no prophecy about which winter it fails.
The TPR valve and its discharge, the safety anatomy
The temperature and pressure relief valve is the appliance's safety system, and its findings deserve the mechanism-naming precision that all safety labels require.
Missing discharge pipe. The temperature and pressure relief valve lacks a discharge pipe. A relief valve without discharge piping can scald anyone nearby if the valve operates. Recommend installing an approved discharge pipe terminating near the floor.
Wrong pipe, same stakes. The relief valve discharge pipe is reduced in diameter and routed upward before descending. Restrictions and traps in discharge piping can impair relief operation. Recommend correction with an approved configuration by a qualified plumber.
Weeping valve, the quiet warning. Mineral staining and moisture were observed at the relief valve and its discharge pipe. Weeping at the relief valve can indicate excessive pressure, temperature, or a failing valve. Recommend evaluation by a qualified plumber. The implication sentence lists possibilities without choosing, which is exactly where an inspector's diagnosis should stop.
Capped discharge, the escalation. The relief valve discharge was capped. A capped relief line defeats the tank's safety mechanism entirely. Recommend correction by a qualified plumber before continued use of the heater. Before continued use is your urgency register, spent rarely so it keeps its force.
Venting and combustion, gas units earning scrutiny
Backdraft evidence. Melted grommets and scorch staining were observed at the draft hood. These conditions are consistent with flue gas spillage. Recommend evaluation by a qualified professional before continued use. Combustion byproducts entering the living space is a named mechanism, safety, no hedging.
Vent connector problems. The vent connector rises at an insufficient slope and shows disconnection at one joint. Improper venting can permit exhaust gases to escape into the structure. Recommend correction by a qualified professional.
Combustion air, the forgotten finding. The heater is installed in a small closet without visible provisions for combustion air. Insufficient combustion air can affect safe operation. Recommend evaluation by a qualified professional.
The supporting cast, small findings that matter
The drip pan. The heater is installed above finished living space without a drip pan and drain. A tank failure at this location would discharge into the finished areas below. Recommend installing a pan with a properly routed drain. The consequence sentence does the selling, since the finding is invisible until the ceiling below is not.
Corrosion at connections. Corrosion was observed at the water connections atop the tank. Corroded fittings weep and worsen over time. Recommend repair by a qualified plumber. Same language family as the plumbing section's valve findings, because it is the same finding wearing a different location.
Sediment signals. Rumbling was audible during recovery after fixture use. Rumbling in tank-type heaters is consistent with sediment accumulation, which reduces efficiency and shortens tank life. Recommend flushing per the manufacturer's guidance and regular maintenance.
Seismic strapping, where your region requires it. The heater lacks seismic strapping. Recommend installing strapping consistent with local requirements. Short, factual, jurisdiction routed to the word local.
Tankless units, the same discipline, different anatomy
Tankless heaters swap the tank's findings for their own set, and the structure holds. The affirmative line, the tankless unit responded to fixture demand and produced hot water at the expected delay. The maintenance note, no service tags were observed, and manufacturers recommend periodic descaling in hard-water areas, recommend establishing a service schedule. The venting finding, the concentric vent termination is within a window opening's clearance range, recommend evaluation against the manufacturer's clearance requirements. Different anatomy, same observed-implication-routed shape, and worth its own library entries the day your market's housing stock starts going tankless.
The photo pair that carries the section
Two frames per heater, every time. The data plate, straight-on and legible, because model, serial, and capacity answer half the questions any future reader has, and the wide shot placing the unit, its connections, and its discharge routing in one context frame. Add the annotation circle on any finding, corrosion, staining, the capped valve, and the section documents itself.
The water heater rewards preparation like nothing else in the template. Load these narratives with their conditions, keep the two-photo habit, and forty write-ups a year become forty taps, each one carrying language you refined exactly once.
Common questions
Why does one appliance deserve its own narrative guide?
Because it appears in every report, carries genuine safety findings, and produces the same dozen conditions across thousands of houses. Highest repetition times real stakes equals the best return on pre-written language in the whole template.
Should I test the TPR valve by lifting the lever?
Most standards treat lever-testing as beyond scope, since valves that have never operated may not reseat. Observe the valve and its discharge piping, report their condition, and route operation testing to the plumber servicing the unit.
Is water heater age alone a finding?
Age from the data plate is a fact worth one budgeting sentence. A functioning heater past its typical range is a plan-ahead note, not a defect. Corrosion, moisture, or venting problems are findings at any age.