NATE Hydronics Oil case studies
NATE Hydronics Oil · Put your knowledge to work in context.
The NATE Hydronics Oil credential is listed on the NATE website as an exam area for technicians who service and install oil-fired hydronic heating systems. Note that the exam-specific page at natex.org/certifications/hydronics-oil/ currently returns a 404 Page Not Found, so this page cannot confirm the current exam blueprint, item count, time limit, passing score, fee, or recertification terms. The NATE Hydronics Oil case studies are 5 cases and about 2,876 words.
1Slab Radiant Addition on an Oil Boiler with a Tankless Coil
A homeowner wants to add 600 ft² of slab-on-grade radiant heating to a finished basement. The existing oil-fired boiler has a tankless coil and is set to maintain 180°F supply; the basement design heat loss is 21,000 Btu/h.
590 words, about 3 min2Delayed Ignition and Rising Smoke After an Oil Burner Tune-Up
A technician tunes a 1.10 gph, 80°B nozzle oil burner in a cast-iron boiler. After replacing the nozzle and cleaning the heat exchanger, the burner starts with a slight puff and settles at 10.5% CO2, 1 smoke, −0.02 in.
549 words, about 3 min3Tankless Coil Priority on a Triple-Aquastat Oil Boiler
A house has an oil boiler with a tankless coil, a triple aquastat with high limit 190°F, low limit 160°F, and 10°F differential, and one heating circulator. The thermostat is a simple 24 V heat-only type.
563 words, about 3 min4Cold Second-Floor Radiator on a Converted Gravity System
A two-story house has a converted gravity system with large cast-iron radiators, 1-1/4 in. mains, one circulator on the supply, and zone valves.
586 words, about 3 min5Intermittent Oil Burner Lockout After Long Off Cycles
An oil-fired boiler has a two-pipe oil line. The tank is 8 ft below the burner and 25 ft away; the line is 3/8 in.
588 words, about 3 min