[cs _spacer cs_spacer_height=”1″]
Combination Boiler Explained
Oil Fired Combination Boiler – Combi Boilers
Combination boiler are commonly called combi boilers, and are 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. – a larger boiler output than is actually required to satisfy central heating demand; you might end up with a 30kW boiler where a 20kW conventional boiler would suffice and also be more efficient. 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. Oil fired combi boilers are complex, have bespoke components; they will be more expensive to maintain than a conventional system. Good business for boiler manufacturers, not necessarily 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. The benefits: – loads of hot water at mains pressure – up to 72 litres per minute – back up immersion heater – industry standard components
- WARRANTY REGISTRATION FORM
- Specifications Condensing Boiler
- Specifications Non Condensing Boiler
- Flue Terminating Positions
- Flue Options
- Oil Fired Boiler Fuel Supply System
- Fire Valve
- Teflon© Hose
- Flue Kits and Accessories
- Oil Tank
- Condensate Drain Options
- Priming the Burner
- Building Regulations
- Why choose oil
- Heating Systems explained
- Useful Links
Please get in touch if you need more information. Use the form on the Contact page, Call 01449 722461 or Email.