HVAC Load Calculations and Energy Code Compliance in New York
New York-licensed PE
Stamped cooling and heating load calculations and energy code compliance for industrial, commercial and multi-family projects in New York State, including New York City.
New York has two sets of codes: the state's, and New York City's own. Both moved to new editions in the past year, so where the project is and when it is filed decide which code it is held to. That is the first thing we check on a New York project.
The same services in every state
Adicot provides the same engineering services in every state it is licensed in, for industrial, commercial and multi-family buildings of any size. What changes from state to state is the code the work is held to.
- Cooling Load/Heat Load Calculations: room-by-room loads worked with ASHRAE methods, with ventilation rates to the adopted code
- Energy Code Compliance: the building modeled and compliance demonstrated on performance where the code allows it, in the format the plan reviewer expects
Both are sealed by a professional engineer licensed in the state. Get a Quote to see the fee.
We work on industrial buildings, commercial buildings from offices and retail to restaurants and clinics, and multi-family buildings.
The codes in force in New York
Outside New York City, the state adopts one code, the Uniform Code, and its own energy code. As of November 2026:
- Energy: the 2025 Energy Conservation Construction Code of New York State, based on the 2024 International Energy Conservation Code, in effect since December 31, 2025.
- Mechanical: the 2025 Mechanical Code of New York State, based on the 2024 International Mechanical Code, in effect since December 31, 2025.
- Before 2026: the 2020 editions applied. There was no transition period on the energy code, so the filing date matters.
What is particular to New York
New York City. The city writes its own codes. The 2025 NYC Energy Conservation Code, also based on the 2024 IECC, applies to applications filed from March 30, 2026. Mechanical work is held to the 2022 NYC Mechanical Code.
All-electric buildings. State law requires most new buildings of seven stories or fewer to be all-electric. Enforcement was suspended pending a federal court challenge.
Which edition governs. Because the change is recent, the application date decides which edition a project is held to. We confirm which code and edition govern the project before work starts.
Climate. New York City, Long Island and Westchester are in climate zone 4A. Most of the state is 5A, and the colder northern and upland counties are 6A.