Glossary

O-rings

O-rings are one of the most common types of sealing elements in the industry. These are circular sealing elements made of elastic materials that are inserted into the space between two coupling parts in order to prevent the leakage of liquids…

Ocean energy

Ocean energy is a type of renewable energy that uses the various forms of energy that are present in the oceans, such as currents, waves, differences in water temperature and salinity, to generate electricity or other forms of energy. Ocean…

OEM manufacturers

OEMs (Original Equipment Manufacturers) are companies or organizations that produce components, parts or products that are subsequently used in other companies' products. These components or products are often referred to as "OEM products" or…

oil radiator

An oil radiator is a type of electric heating device used to heat rooms. It works on the principle of heat transfer using heat transfer oil, which is heated by an electric heating element and then circulated through a radiator to transfer heat…

Olimpia Splendid

Olimpia Splendid is an Italian company specializing in the development and production of air conditioning and heating systems for homes, commercial spaces and industrial applications. The company has a rich history and is considered one of the…

OpenTherm

OpenTherm is a communication protocol used in domestic heating systems to control and communicate between different devices such as heating boilers, thermostats and heating pumps. This protocol is often used in modern central heating and air…

operating system

An operating system (OS) is a software layer that controls and manages the hardware and software resources in a computer system or other electronic device. It is the basic software that enables the launch and management of applications, ensures…

Optical efficiency

Optical efficiency is a physical quantity used to measure the efficiency of light transmission or absorption in a particular optical system, material or device. It refers to the ability of an optical system to capture, transmit, reflect,…

Optoelectronics

Optoelectronics refers to technologies and devices that combine optical and electronic properties and processes. These technologies are focused on the manipulation and detection of light signals using electronic components and related…

Osmosis

Osmosis is a phenomenon that occurs when a solvent (usually water) passes through a semipermeable membrane from an area of lower solute concentration to an area of higher concentration. This process happens through the membrane so that the…

osmotic membrane

An osmotic membrane is a special type of membrane that allows the passage of dissolved substances - particles dissolved in water, while preventing the passage of larger molecules or particles. Its operation is based on the principle of osmosis,…

Outdoor unit

The outdoor unit in the air conditioning system is an important component that serves to remove heat and cold from the interior of the building to the outside environment. This unit contains a compressor and chiller that work together to…

Oventrop

The company Oventrop is a German company with its headquarters in Olsberg, founded in 1851. It is one of the most popular European companies operating in the areas of climate control, heating, cooling and technology. Oventrop specializes in the…

Overpressure

Overpressure is a physical quantity that describes the difference between the actual pressure in a system and the pressure that would be in the same system under normal conditions. It is the degree to which the pressure in the system is higher…

Oxidation

Oxidation is a chemical reaction in which electrons are transferred from one chemical element to another. The element that is oxidized loses electrons, while the other element that is reduced gains electrons. Oxidation can occur in a variety of…

oxygen barrier

  The oxygen barrier is a layer of aluminum that prevents oxygen molecules from entering the heating system.   Oxygen is an unwelcome element in heating systems, which causes corrosion of the metal elements of the heating…