Why choose Hounsfield?
- Compact Space Saving Design
- 96% to 97% Full Load Efficiency
- FREE 5 Year Warranty
- Whisper Quiet Operation
- Concealed but Visible Controls
- SEDBUK Band A Efficiency Rated
- Plug & Go Electrical Installation
- Versatile Flue Options
A combination (or combi) boiler is similar to a conventional boiler with a second heating circuit which instantaneously produces hot water.
Often overlooked is the fact that the operating / engineering differences between gas and oil fired combi boilers is significantly different.
Oil fired combi’s, unlike gas, do not have modulating burners to cope with additional heating demand when a hot tap is opened.
This problem is addressed in two ways:
- an integral water store making them physically big.
When the heat store is exhausted, hot water flow of 10-13ltrs / minute @ 35oC rise above mains temperature is around the norm. To fill a bath (112ltrs) will take about ten minutes, provided no other taps are opened.
High life-time costs... unlike a gas combi, water is stored in the boiler at circa 80oC, components subjected to this constant residual temperature will fail. Combi boilers are complex, have bespoke components; they will be more expensive to maintain than a conventional system. Good business for boiler manufacturers, not the best option for the homeowner!
So what's the solution? - Keep it simple! In so many cases a conventional boiler with a pressurised domestic hot water cylinder such as a Megaflow is a far better option.
- loads of hot water at mains pressure - up to 72 litres per minute
- back up immersion heater
- industry standard components
For more information on our boilers, to find an installer near you or for spare parts visit our contact page, or call us on 0845 680 8153.