Open vent boilers are similar to system boilers as they also heat up water in advance.
However, they take up more space as they have multiple water tanks.
Open vent boilers are great at providing multiple outlets with hot water at the same time, all while maintaining a good pressure. However, they do take up quite a lot of space.
Is the open vent boiler right for me?
An open vent boiler will probably work well for you if you have a regular routine as you can set your boiler to heat water ready for when you need it. However, if you want hot water at different times on different days then a combi boiler might be better.
Open vent boilers are good for homes with multiple bathrooms as they can supply multiple showers or taps with hot water at the same time. However, many people choose to replace their open vent boiler with a system boiler, as they take up less space and are generally cheaper.