Combi - Combination Boiler

Where space is at a premium or there is a limited demand on hot water, a Combination boiler can be the answer.


  • Hot water when needed

  • Simplified controls

  • Mains pressure hot water

  • Safety valves within the boiler

  • No trapped air in the radiators

  • Pressurised heating system

  • No loft tanks

  • No cylinders


  • No hot water when the mains is shut off

  • No stored hot water

  • No immersion heater if it breakdown

  • Can't supply more than 2 outlets at a time

All Combination boilers (whether they be Gas or Oil fired) fitted by Swann Plumbing are Condensing units. This means that the amount of gas and electrical energy used is reduced. this in turn reduces household bills and carbon into the environment. We only recommend the best brands on the market.

Brands we like

Viessmann Combination boiler  

The comprehensive product range from Viessmann includes advanced heating systems for all fuel types and for every output range from 1.5 to 20 000 kW. The range is divided into the categories 100, 200 and 300, both technically and in terms of price and so is able to offer a suitable solution for any requirement, with everything supplied from a single source, with perfectly matching system components.

Vaillant Combination boiler  

Whether you use natural gas, LPG, electricity or renewable energies, Vaillant offers efficient solutions for all energy sources. The result: domestic comfort that is perfect for you.

boiler service

gas boiler service

Power flushing

Power Flushing is when heating systems are forcibly cleansed with aggressive chemicals using water at high velocity.

Radiators cold at the bottom or centre?

Radiators not heating at all?

Is your boiler banging or noisy?

Boiler cutting out due to sludge in pumps?

It takes a long time for radiators to heat up?

If the answer is YES then your system probably needs a power flush call us to find out more.