O’Neill & co (south west) Ltd

What is the best combi boiler for a 2-3 bedroom house?

The choice of boiler, mainly depends on the hot water requirements of the household. Some combination boilers will struggle with two high flowing showers running at the same time. Once this is done, the incoming mains pressure & flo rate should be checked. You can install a 12 ltr per minute boiler, but when you add the other cold water requirements of the property. You may need 20 ltrs entering the property. That done a 25 kilowatt boiler is usually ok, if the property has one bathroom.

What are the benefits of powerflushing?

Power flushing is particularly important if,you have a conventional boiler, that has a feed & expansion tank. This is a small tank usually in the loft space. This is because the water has open contact with air, (unlike a pressurised system, Combi or system boilers) This means the inside of radiators, will rust more & protective chemicals, will evaporate or dilute. If a modern boiler is fitted to an older system, the water ways on the new boiler are much smaller. So any rust particles can damage, or effect the new boiler.

What are the benefits of installing an unvented cylinder?

No need for tanks in loft space. Increased hot water pressure. Can heat water from boiler, or electric immersion heater. Many unvented hot water cylinders have twin coils, so solar or other heat sources can be used. Ideal for larger properties, with many different sizes available.