Condensing Gas System Boilers
What is a system boiler and how does it differ from other condensing boilers?
With so many different types of boiler it can be a minefield to know which one is best suited to your particular circumstance, many variables come into play when choosing a boiler and should only be done by a competent specifier and installer. Be sure to visit our Boiler Buying Guide for more information on choosing a boiler.
What is a System Boiler?
A system boiler is similar in some respects to a regular boiler in that they both work on the principle of stored hot water. However, they differ in one important respect in that a system boiler does not require a feed and expansion tank. This frees up valuable space in the loft and results in a cheaper, neater and more efficient installation.
Unlike a combi boiler you still require a hot water tank, usually within the airing cupboard so you can still benefit from a full tank of hot water and a useful area for drying towels.
Another advantage of a system boiler over a regular type is that hot water is pumped directly from the boiler around the radiator system and hot water tank, this results in a faster response time and lower running costs.
A system boiler tends to be larger than a regular boiler as it contains the expansion vessel, filling loop and pump, however, many advantages including simple installation as most of it is pre-plumbed, pre-wired and tested prior to delivery.
Advantages
- Inexpensive to run
- Reliable
- No tanks in loft, no risk of leakage and more space
Disadvantages
- Physical boiler takes up more space
- Usually more expensive to buy than a regular boiler
When Should a System Boiler be Used?
It's important to seek professional advice on which boiler is best suited to your requirements, in general a system boiler is a good choice if you have no room in the loft for an expansion tank and have a large family wishing to take hot water form several different sources at once, but remember, get professional advice. A company like British Gas can offer this for free.
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Current British Gas Offer
- £400 discount If you order a boiler before 23rd August 2008 +
- £150 Additional Discount for HomeCare Customers +
- £300 WarmFront grant if you're over 60 and live in England +
- All boiler installations include Free HomeCare 200
- Reduce you heating bill by up to 1/3
Get a free quote and energy audit by a British Gas Heating Advisor. You'll be under no pressure and there's absolutely no obligation to buy.
All installations are covered by HomeCare 200, British Gas's home emergency breakdown service. HomeCare 200 has been voted as a Which? 'Best Buy' with 100% rating.
