Boiler Replacement Costs

Helpful information for gas boiler replacement costs in South Shields.

Broken gas boiler – replacement boiler needed. So your 15 year old gas boiler has broken down once again and is on its final legs and you can’t face spending money on repairs yet again. It’s finally time to start thinking of replacing it but you have no idea of what it’s going to cost as the last time you bought a new boiler is a fuzzy distant memory.

The following information to gas boiler replacement costs in South Shields will equip you with more knowledge to make the task of replacing your heating system a little less daunting.

1: Identify what heating system you have now
There are three main heating systems you could have:

  • Combination boiler
  • Gravity fed system with separate warm water cylinder
  • High pressure (unvented) system with separate hot water cylinder.

How would you discover which system you have?

Well if your hot water is heated by the gas boiler for immediate use and you don’t have a hot water cylinder then you are likely to have a combination boiler or “combi”. If you do have a hot water cylinder then the gravity fed system is usually identified if you have a cold water tank and an expansion overflow tank (often in the attic room of a house). High pressure (unvented systems) are less common but don’t have tanks in the loft and deliver water at mains pressure.

2: Decide what heating system you want to replace it with

You’ll find three main factors that may sway your view:

  • The system you have already and its hot water delivery
  • The difficulty of upgrading to a condensing central heating boiler
  • Solar options for water heating

Combination boilers in South Shields

If you have already got a combination boiler and you’re satisfied with its overall performance then a like-for-like replacement is an excellent option. Depending on the output of your old boiler you might wish to look at increasing the boiler size if you would like boost the hot water supply for a more powerful shower. Combination boilers of 30kW and upwards are available.

Gravity fed boilers South Shields

For gravity fed central heating systems the options becomes more problematic. Few heating engineers nowadays would encourage a gravity fed system for a completely new installation as they have a number of limitations – not least a cold water tank in the loft that has the potential to burst and cause water damage. However if you’re on a budget and content with the heating system then a like-for like replacement is perhaps a sensible option. For flats and 1-2 bedroom houses in which the hot water consumption is pretty low then a combination gas boiler can also be a great option. Replacing a gravity system with a combi is normally quite straightforward and can free up the space where the hot water cylinder is placed.

There are two types of boiler you can use when replacing: system boilers and heat only boilers. Many older boiler systems have external pumps to move the heated water around and for these a heat only boiler may be used. A system boiler has the pump built into the boiler itself, which cuts down on the plumbing an installer is required to do but it does increase the fee for the boiler. So if the rest of your system is good then a heat only boiler can be a good option whereas if you have to replace other elements it might be worth considering a system boiler in its place.

High pressure (unvented) systems

These are generally set up in larger homes where the hot water needs of a big family may outstrip a combination boiler’s capability. Typically they’d be replaced like-for-like although the same consideration ought to be given to whether a system boiler or a heat only boiler is the better option. Your heating engineer can guide you on this.

Condensing Boilers in South Shields

Nearly all new boilers supplied since 2003 have been of the more fuel efficient condensing type. These have efficiencies of 90% upwards and are ‘A’ rated. Older boilers can often be G rated or 50-70% efficient so by switching to a condensing boiler you should save money on your fuel bills.

The downside of a condensing boiler is that it produces a small but steady stream of water which has to be drained away. A condensing boiler needs access to a drain either internally (preferably) or externally. Depending on the position of your boiler this could be effortless to do or practically unattainable. Where it is difficult to do it may be worth considering moving the boiler position rather than incurring unnecessary extra cost. As the system will have to be adjusted by re-siting the boiler it may also lead you to choose to change boiler types. More likely, you will have to add a condensate pump to pump the waste water to the nearest drain outlet. It is important that the condensate pipe isn’t allowed to freeze so if it drains to the outside it has to be insulated.

How Can we help?