New Hampshire HVAC Load Calculation

Professional HVAC load calculation requirements for New Hampshire. Get accurate heating and cooling load calculations with state-specific design temperatures, building codes, and local climate considerations for Manchester, Nashua, Concord and 1 more cities.

Quick Start New Hampshire Load Calculator

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

New Hampshire Design Temperatures

Winter Design Temperature

-6°F

Used for heating load calculations and equipment sizing across New Hampshire

Summer Design Temperature

87°F

Used for cooling load calculations and equipment sizing across New Hampshire

Climate Zone Information

New Hampshire spans climate zones 5A and 6A, which means different regions may have varying design requirements. Always verify local design temperatures for your specific project location.

New Hampshire Building Codes & Requirements

HVAC Requirements

  • High-efficiency heating
  • Air sealing critical
  • Ventilation heat recovery

Note: Mountain areas require special consideration for altitude and access

Energy Code

2015 IECC with New Hampshire amendments

Common Building Types

  • Colonial homes
  • Mountain cabins
  • Small commercial

New Hampshire HVAC Challenges

Cold winters

Mountain conditions

Historic preservation

Remote locations

Major Cities in New Hampshire

Manchester
86°F max
Nashua
85°F max
Concord
87°F max
Derry
85°F max

Quick Facts

State:New Hampshire
Abbreviation:NH
Climate Zones:5A, 6A
Major Cities:4

Local Resources

Eversource New Hampshire

utility

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New Hampshire Office of Strategic Initiatives

government

New Hampshire HVAC Association

organization