Maryland HVAC Load Calculation

Professional HVAC load calculation requirements for Maryland. Get accurate heating and cooling load calculations with state-specific design temperatures, building codes, and local climate considerations for Baltimore, Frederick, Rockville and 1 more cities.

Quick Start Maryland Load Calculator

Get started with your Maryland HVAC load calculation using our professional tools designed for local climate conditions.

Maryland Design Temperatures

Winter Design Temperature

10°F

Used for heating load calculations and equipment sizing across Maryland

Summer Design Temperature

89°F

Used for cooling load calculations and equipment sizing across Maryland

Climate Zone Information

Maryland spans climate zones 4A, which means different regions may have varying design requirements. Always verify local design temperatures for your specific project location.

Maryland Building Codes & Requirements

HVAC Requirements

  • High efficiency standards
  • Duct testing required
  • Enhanced ventilation

Note: Montgomery County has additional green building requirements

Energy Code

2018 IECC with Maryland amendments

Common Building Types

  • Urban rowhouses
  • Suburban homes
  • Government buildings

Maryland HVAC Challenges

Urban density

Coastal humidity

Historic districts

Government regulations

Major Cities in Maryland

Frederick
89°F max
Rockville
88°F max
Gaithersburg
88°F max

Quick Facts

State:Maryland
Abbreviation:MD
Climate Zones:4A
Major Cities:4

Local Resources

BGE (Baltimore Gas and Electric)

utility

Visit Website →

Maryland Energy Administration

government

Maryland HVAC Excellence

organization