Voltage is the measure of electrical potential difference between two points in a circuit. It acts as the "pressure" that pushes electrical current through wires and cables, enabling the flow of electricity to power devices and systems. Voltage is typically measured in volts (V).

A volume damper is a device installed in ductwork to control the amount of airflow passing through the duct. It is primarily used to balance airflow in different parts of an HVAC system, ensuring proper distribution to various rooms or areas. Unlike some dampers, a volume damper is not designed to control the direction of...

VRF, or Variable Refrigerant Flow, is an advanced HVAC technology that uses refrigerant as the cooling and heating medium. It allows for precise temperature control in multiple zones or areas within a building by varying the flow of refrigerant to indoor units based on each zone's needs. This system is energy-efficient, as it only delivers...

A watt is the unit of power in the International System of Units (SI) that measures the rate at which energy is used or transferred. One watt is equal to one joule of energy used per second or, in electrical terms, it is the power produced when an electric current of one ampere flows through...

The watt is the standard unit of power in the International System of Units (SI). It measures the rate at which energy is used, transferred, or converted and is equivalent to one joule of energy per second. It is commonly used to quantify electrical, mechanical, or thermal power in systems and devices. For example, a...

Weatherization: The process of making a building more energy-efficient and better protected against weather conditions, such as wind, rain, and extreme temperatures. This involves upgrades like sealing air leaks, adding insulation, installing energy-efficient windows and doors, and improving HVAC systems. The goal is to reduce energy consumption, lower utility bills, and enhance indoor comfort.

The wet bulb temperature is the lowest temperature to which air can be cooled by evaporating water into it at a constant pressure. It combines the effects of both heat and humidity, representing how cool the air feels when evaporation occurs. This measurement is often used in HVAC to assess cooling processes and is crucial...

A thermometer with its bulb wrapped in a water-soaked cloth or wick. When air moves over the wet cloth, water evaporates, cooling the thermometer. The temperature it measures is called the "wet-bulb temperature." This reading is crucial in HVAC because it helps determine the air's relative humidity and the effectiveness of evaporative cooling processes. The...

Thermostats with this feature can connect to your home’s Wi-Fi network, enabling remote access and control via smartphones, tablets, or other internet-connected devices. They often include features such as advanced energy tracking, scheduling, and system monitoring to improve efficiency. Many models can also send alerts to notify you of system issues or maintenance needs.

Controls used in HVAC systems to regulate the heating, cooling, and airflow within specific areas, or "zones," of a building independently. These systems use components like thermostats, dampers, and control panels to allow occupants to set different temperatures or comfort levels in each zone, improving energy efficiency and personal comfort.