HVAC & Climate

Ductwork sizing, refrigerant lines, filters, and heating/cooling loads.

Calculators

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Refrigerant Line Set Sizing
Size copper lines for HVAC systems based on tonnage and run
Ductwork Sizing Calculator
Size ductwork based on CFM requirements and velocity

Cheat Sheets

(1)
HVAC Filter MERV Rating Guide
Chart explaining MERV scale and correlating ratings to air quality function

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