A-SQUARE GROUP

April 2025

A professional HVAC technician measuring airflow using an anemometer inside a duct, with visible airflow arrows or overlay graphics indicating CFM values.
HVAC Systems, MEP

CFM in HVAC Explained

Understanding CFM (Cubic Feet per Minute) is crucial in HVAC systems as it measures the airflow necessary for maintaining comfort, efficiency, and air quality. Learn how CFM is calculated, its importance, and best practices for managing airflow in your HVAC design.

Thermal Load
HVAC Systems, MEP

HVAC Heat Load Balancing Guide

Learn how to balance heating and cooling loads efficiently with our HVAC Heat Load Balancing Guide. This comprehensive step-by-step guide explains how to calculate, distribute, and optimize heat load in HVAC systems to improve energy efficiency, maintain indoor comfort, and lower utility costs.

Heating and Air Conditioning System
HVAC Systems, MEP

HVAC System Components

HVAC systems rely on various components to ensure proper airflow, temperature regulation, and efficiency. Key elements like canvas, liners, grilles, dampers, diffusers, fire dampers, and volume control dampers work together to enhance air distribution, safety, and comfort in residential and commercial spaces.

Ducting in Ceiling
HVAC Systems, MEP

HVAC Insulation Types

Proper insulation in HVAC systems enhances energy efficiency and temperature control. Different materials—such as fiberglass, mineral wool, and spray foam—are used for ducting, piping, and ceilings to minimize heat loss and improve system performance.

A professional illustration depicting refrigerant piping in an HVAC system
HVAC Systems, MEP

Humidity in Heat Load Design

Humidity plays a crucial role in heat load calculations, directly affecting HVAC system efficiency and indoor comfort. High humidity levels increase cooling demands, while low humidity can impact air quality and occupant well-being. Understanding moisture control in HVAC design helps optimize energy usage and maintain a balanced environment.

Pic of heat load
HVAC Systems, MEP

Key Factors in Heat Load Calculation

Heat load calculations are essential for designing efficient HVAC systems. Various factors—including insulation, occupancy, climate, and equipment—impact the total heat load of a space. Understanding these key elements ensures accurate calculations and optimal system performance.

Picture showing Heat Load in a simple way
HVAC Systems, MEP

HVAC Heat Load Calculation Guide

HVAC Heat Load Calculation Guide is essential for designing efficient cooling systems. By accurately determining heat load, you can prevent inefficiencies, reduce energy costs, and ensure optimal comfort in residential and commercial spaces.

Picture of HVAC Duct
HVAC Systems, MEP

HVAC Duct Sizing Guide

Proper HVAC duct sizing is essential for maintaining efficient airflow and system performance. By understanding calculation methods and design considerations, you can optimize energy efficiency and indoor air quality. This guide explores key factors in determining the right duct dimensions for your HVAC system.

Types of Refrigerant piping
HVAC Systems, MEP

Types of Refrigerants

Choosing the right refrigerant is crucial for HVAC system efficiency and environmental impact. Various refrigerants offer different properties, applications, and regulatory considerations. Understanding their classifications and benefits helps optimize cooling performance while ensuring compliance with industry standards.

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