Combination Boilers

Combi Boiler Installation

Parr and Evans install quality, efficent Combination boilers in Bristol, we have over 15 years experience of doing so, combining the latest technology with a wealth of knowledge, let Parr and Evans install your new Combi Boiler in Bristol.

Combination – or ‘combi’ – boilers are highly efficient condensing boilers. The majority of new boiler installations in the UK are now combi boilers – this is mainly due to the fact that they take up very little space within the home and are extremely efficient.

They differ from other boilers as there is no need to store hot water – this eliminates the need to have any roof tanks in your loft or have a hot water cylinder in the airing cupboard, taking away any worries about frozen or burst pipes in the loft. A standard cylinder stores 25 gallons of hot water. A roof tank can hold 30 to 75 gallons. One of the main benefits of fitting a combi boiler is that you only heat up the amount of water you use from a tap or shower. In addition, showers run at mains pressure – doing away with the need to fit noisy pumps.

As well as their warm air heating systems, leading heating manufacturer Vaillant also offer a range of combination boilers to their Bristol and Bath customers and these systems can provide hot water for domestic central heating systems without the need of a storage cylinder.


Their new Vaillant Green iq and Eco tec plus 800 series of combination boilers sets new standards in high efficiency condensing boiler technology.

The Vaillant Green iq and Eco tec plus 800 series range of combination boilers provide continuous hot water on demand directly from the mains, via a high efficiency stainless steel plate heat exchanger. The temperature of the water coming from the taps is kept constant at all times by a fully modulating burner.

Contact us for more information on specific features, measurements and heat outputs.

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Parr and Evans Heating Ltd
11 Elmleigh Avenue,
BS16 9ER

Telephone: 0117 961 6478

Office Hours: 8.00am – 5.00pm (Monday to Friday)