gázkazán

A gázkazán, or gas boiler, is a central heating appliance that uses natural gas or propane to heat water. This heated water is then circulated through a system of pipes to radiators or underfloor heating, warming the building. Gas boilers are a common choice for home heating in many parts of the world due to the widespread availability of natural gas and their efficiency.

There are several types of gas boilers, including combi boilers, system boilers, and regular (or conventional) boilers. Combi boilers are popular for smaller homes as they provide both heating and hot water on demand without the need for a separate hot water cylinder. System boilers are designed for larger homes with a higher demand for hot water and are connected to a hot water cylinder. Regular boilers are the most traditional type, requiring a cold water feed cistern and a hot water cylinder.

Modern gas boilers are significantly more efficient than older models. Condensing boilers, for example, recover heat from the exhaust gases, which would otherwise be lost, and use it to preheat the incoming cold water. This process can lead to substantial energy savings. The efficiency of a gas boiler is typically measured by its Annual Fuel Utilization Efficiency (AFUE) rating.

Regular maintenance is crucial for the safe and efficient operation of a gas boiler. Annual servicing by a qualified engineer is recommended to check for gas leaks, ensure proper combustion, and identify any potential issues. It's also important to follow the manufacturer's instructions for operation and to have the system flushed periodically to remove sediment and prevent corrosion.