Reviewer
Priya Natarajan
P.E. Mechanical, LEED AP, energy modeling consultant
Priya is a licensed Professional Engineer in mechanical engineering, which under most state engineering boards requires an ABET-accredited four-year engineering degree, passing the Fundamentals of Engineering exam, four years of supervised engineering practice under another PE, and passing the discipline-specific Principles and Practice of Engineering exam. She also holds the LEED AP Building Design + Construction credential through GBCI, which adds continuing-education requirements (30 CE hours every two years, six of them LEED-specific) on top of the PE renewal cycle.
Her consulting practice builds calibrated energy models for residential retrofits and small commercial projects, mostly using OpenStudio or EnergyPlus with hourly TMY3 weather data. She runs the kind of analysis that quantifies the difference between a SEER2-rated baseline and a high-efficiency upgrade across a full cooling season at the actual building location, then converts that into annual kWh savings and payback under the project's specific utility rate structure. That work is exactly the math behind every efficiency calculator on this site.
Priya reviews the efficiency-rating tools (SEER2 savings, SEER to SEER2 converter, HSPF to HSPF2 converter, EER vs SEER, COP, annual kWh) for both formula correctness and realistic default values. Where the calculator uses a simplification (linear seasonal averages instead of bin-method hourly weather), she flags it in the page prose so users understand the limits of a quick-answer tool versus a full hourly simulation.
Tools reviewed by Priya
Every tool listed below was reviewed by Priya Natarajan against the published code, standard, or manufacturer data it implements. Priya signs off on the math, the inputs that drive it, and the edge cases the result panel flags.
How BTU Size uses reviewers
Every tool on BTU Size credits a named technician with field experience in the relevant trade. Reviewers check the math against published code (ACCA, ASHRAE, NEC, NFPA, IECC), against manufacturer engineering data (Carrier, Trane, Mitsubishi, Owens Corning, Slant/Fin), and against the edge cases that show up on real service calls. See the full reviewer roster and methodology.