The need for hot water supply at home is undeniable. However, when deciding on the best boiler, it can get confusing as most people do not understand the difference in the three options available. Below are useful insights to guide in installing the best boiler for your needs.
1. Regular Boiler
These are traditional or conventional boilers which include a cold water storage tank feeding the hot water cylinder.
- Work perfectly even in low mains pressure
- Can supply hot water to multiple taps at the same time
- They have a simple design making them easy to operate and maintain
- They are compatible with solar systems and can have an immersion heater in the hot water cylinder as a backup if the boiler stops working
- They take too much space
- They have low efficiency compared to combi boilers
- Since they supply hot water to multiple taps at once, the pressure may be low depending on the number of running taps at one go
2. System Boiler
A system boiler includes an inbuilt heating and hot water system in the boiler with a detached hot water cylinder for storing hot water. They, however, lack a cold water storage tank. They are preferred on commercial buildings as they take up more space compared to combi boilers. System boilers provide a continuous supply of hot water interrupted only when the hot water tank runs empty.
- A constant supply of hot water to multiple taps
- Quick and easy to install
- They are relatively smaller to traditional water tanks as they do not have a cold water storage tank. They take less space comparatively and an excellent choice for home owners with limited space
- They can be integrated with solar power supply hence saving cost on electric bills in heating water
- The storage tank can only hold up to a certain amount of water. When these ruins out, you are typically out of hot water
- Does not instantly supply hot water. If you need a hot shower in the next few minutes, you will have to run your system boiler in advance and probably wait for the water to heat up
- The cylinder need storage space hence you must create space for it during installation
3. Combi Boiler
A combi boiler is a water heating system with a central heating unit eliminating the need for a water storage tank. As water flows into the system, it is instantly heated and supplied through the pipes. More than 70% of UK residents prefer combi boilers to the other options as there are highly efficient and compact.
- Cheaper to install as it requires less pipework
- Compact and ideal for houses with limited space
- Highly efficient
- Instant hot water supply on demand
- They contribute and show in your Energy Performance Certificate hence an incentive to upsell your property
- Clean and easy to service as the system is less likely to build up sludge from rust and dust
- Highly dependent on mains pressure
- A combi boiler has limited use hence no more than one bath can run at a time
- In case of breakdown, there is absolutely no supply of hot water unless the system is replaced