Understanding System Boilers
In the UK, combi boilers are often recommended for meeting hot water needs due to their compact design and convenience. However, in certain situations, system boilers can be a more suitable choice. This guide will explain what a system boiler is, how it works, and when it might be the better option for your home.
What is a System Boiler?
A system boiler operates by heating water that is stored in a separate hot water cylinder, unlike combi boilers which heat water on demand. System boilers are especially useful in homes with high hot water demand because they can supply hot water to multiple taps and showers simultaneously. The boiler houses key components like the pump, making it a more space-efficient option compared to regular (or conventional) boilers that require a separate header tank.
FAQs
The three main types of boilers are:
- Combi Boilers: Provide hot water on demand and don’t require a separate water tank.
- System Boilers: Have a built-in water storage tank, making them suitable for homes with high hot water demand.
- Conventional Boilers (Regular Boilers): Include a separate water tank in the loft and a hot water cylinder, suitable for larger homes with multiple bathrooms.
This factor is determined by the capacity of your hot water cylinder. You should consider how much water you need for taps, baths and showers when choosing the right size. However, you should keep in mind that the size of your cylinder will rely on the space available.
Firstly, a heat exchanger heats the water. Then it moves energy from the gas jets to the water. Once the water is heated, it is moved to the hot water cylinder where it will be stored. Even when you are using multiple taps and showers, a constant supply of hot water is always available.
There are many things to consider but one of the most crucial points is how much space do you need for a system boiler. In general, a system boiler is larger than a regular boiler so you need to make sure that you have sufficient space. What makes a system boiler bigger is the fact that it has a pump and an expansion tank.