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(0.9 CEU; 55 minutes) Naturally drafting combustion appliances often spill their combustion products and produce carbon monoxide. Worst-case depressurization testing is an accepted way to discover whether a particular heating appliance is spilling or producing CO during worst-case conditions. This challenging micro course will get you started to understand and conduct this test.
When you take the quiz, have your reading materials (under the Materials tab) nearby so you can consult them.