plumber checking on electric boiler

How Do Boilers Work?

If you want to know how boilers work, then you have come to the right place. Read on to learn about Heat transfer, Radiation, Combustion chamber, and the Heat exchanger. These four components all contribute to the overall function of the boiler. You may find the following explanations helpful. Whether you want to know more about heating or just want to be more comfortable in your home, this article can help you. It’s a quick primer on heating equipment and boilers. Are you seeking for a electric boiler installation Edinburgh or a gas boiler in Edinburgh? In order to reach net-zero gas boilers may be banned by 2025. Although many are still in the dark about the policy changes it is clear the UK will progress to a greener approach.

electric boiler in graphic form

Heat transfer

Boilers can be a significant source of heat, which is transferred through radiation from the combustion chamber, convection from the steam pipes and convection between the metal walls of the boiler. Heat is also transferred through conduction between metal walls and insulation. In the current study, the authors have incorporated slagging/fouling status into the baseline simulation. The model’s results show that heat transfer from the boiler to the surrounding environment can be accurately predicted under different conditions.


The heat transfer through radiation in boilers is calculated in two ways. One method is based on the direct way of heat transfer, while the other involves indirect means of heat transfer. Boiler handbooks are available in hard copies and online libraries at universities. If you don’t have access to these sources, your local boiler manufacturer should be able to provide some guidance. The following table outlines the different methods used to calculate the heat transfer through radiation in boilers.

Combustion chamber

A combustion chamber is a part of a boiler where fuels are burned. It is usually a box-like parallelepiped structure, lined with refractory material, and has a grate for biofuel combustion. It is also a place for the primary air distribution system and the connection flange for an automatic feeding device. The chamber’s opposite wall is equipped with control windows and a video camera.

Heat exchanger

The heat exchanger is the central component of a boiler and is responsible for transferring heat from the hot water to the cold water. As the heat exchanger gets dirty, it will decrease the efficiency of the boiler. The air-gas mixture will also change when the exchanger is dirty. Many manufacturers do not specify a cleaning procedure for this part, which is why cleaning it regularly is vital to maintaining a high level of efficiency and prolonging the lifespan of the boiler.

Fuel source

In order to produce FAD, a by-product of the oil refining process, we must find a suitable fuel source. The current practices involve using FAD for soap manufacturing and paying to dispose of it. However, this practice is not cost-effective, environmentally friendly or beneficial. Using FAD as a boiler fuel source would be more cost-effective, and could improve the sustainability of edible oil refineries. We can also experiment with the fuel source in a diesel heater model to evaluate its suitability for the process.

Electric vs gas boilers

Which is better for the environment? Many people wonder about the differences between these two forms of heating. Electric boilers are more compact than their gas counterparts, and they do not require a chimney. Both of these types of boilers are more efficient than their gas counterparts. While many electric suppliers would like you to believe that electric heating is more eco-friendly than gas heating, the fact is that both fuels are produced by large factories that use fossil fuels.