Blog

HVAC retrofit insights, case studies, and engineering notes from GRR Cooling Experts. Focused on hospitals, labs, and commercial buildings across New York City.

HVAC control panel and system diagram illustrating common retrofit planning mistakes in NYC hospital and laboratory buildings

Jan 6, 2026

3 HVAC Retrofit Mistakes That Break Projects in NYC Buildings
Seasonal holiday graphic published by GRR Cooling Experts.

Dec 17, 2025

Holiday Season Greetings from GRR Cooling Experts | NYC
Graphic titled “Why NYC Buildings Are Switching to EC Fan Arrays” by GRR Cooling Experts.

Dec 1, 2025

Why NYC Buildings Are Switching to EC Fan Arrays
Thanksgiving greeting graphic from GRR Cooling Experts.

Nov 26, 2025

Thanksgiving Message to New York’s Building Community
EC fan array retrofit installed in an air handling unit serving NYC hospitals and commercial buildings.

Nov 21, 2025

EC Fan Array Retrofits in NYC Hospitals and Commercial Buildings
EC fan array retrofit using Ziehl-Abegg EC fans inside a hospital air handling unit in New York City.

Nov 20, 2025

Ziehl-Abegg North America Spotlights GRR Cooling Experts for Hospital Retrofit Work
Veterans Day tribute graphic honoring all who served, by GRR Cooling Experts.

Nov 11, 2025

GRR is Honoring All Who Served
GRR technicians performing a live hospital HVAC retrofit inside a mechanical room, replacing aging chilled water coil equipment.

Nov 6, 2025

Another successful hospital HVAC retrofit by GRR
Illustration comparing EC and AC fan motors for HVAC retrofit applications in New York City buildings.

Nov 5, 2025

EC vs AC Fans in NYC: Why Retrofit Reality Makes the Choice Clear

GRR Cooling Experts Inc.

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Brooklyn, NY 11232
United States

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