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Vocabulary

Blower Door: diagnostic equipment used to pressurize a home and test the envelope for air leakage
CAZ: Combustion Safety Exam - RFI candidates must take it, so must Rater Candidates. (If an RFI passes it and then goes on to become a rater, they don't have to take it again.
Duct Blaster: diagnostic equipment used to pressurize ductwork and test for air leakage
HERS: Home Energy Rating System
HERS Modeler Practical Evaluation: test taken by Modeler Candidates
Manometer: handheld gauge used to measure air pressure
Mentored Rating or Mentored Model: done under the supervision of an experienced Rater by RFI or Modeler Candidates to learn to gather data in the field or create computer models.
NEHERS: Northeast Home Energy Rating System Alliance - a non-profit based in MA that runs trainings for RFIs, Modelers and HERS Raters.
Practical Simulation Exam: one of three tests taken by HERS Rater Candidates.
Probationary Rating: practice rating done by HERS Rater Candidates (5 required)
Rater Exam: one of three tests taken by HERS Rater Candidates.
RESNET: Residential Energy Services Network (oversees the HERS Industry in the US)
RFI: Rating Field Inspector

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