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System Boilers - Natural Gas
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Ryans Direct

System Boilers - Natural Gas


  • What is a system boiler?
  • A system boiler heats your central heating system directly and produces hot water for your cylinder.
  • A system boiler, just like a regular (conventional) boiler works on the principle of stored hot water. However, a system boiler differs from a regular boiler in some important respects.
  • Firstly, many of the major individual components of the heating and hot water system are built into a system boiler, which means that installation is quicker, neater, easier and more efficient.
  • Secondly, the hot water is pumped from the system boiler through the heating system to the radiators and hot water cylinder, resulting in a fast response and more economical running costs. The system boiler removes the need for a feed and expansion cistern.

(1 - Below) An example of a central heating and hot water system layout using a system boiler with an open-vented hot water cylinder:

(2 - Below) An example of a central heating and hot water system layout using a system boiler with a pressurised unvented hot water cylinder:

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POTTERTON GOLD 18KW SYSTEM BOILER COMPLETE WITH FLUE KIT

Product Code: HBOPO00262

£605.54 Each exc VAT




POTTERTON GOLD 28KW SYSTEM BOILER COMPLETE WITH FLUE KIT

Product Code: HBOPO00265

£643.60 Each exc VAT




POTTERTON GOLD 24kw SYSTEM BOILER & FLUE KIT

Product Code: HBOPO00260

£625.14 Each exc VAT




VAILLANT 637 SYSTEM BOILER COMPLETE WITH STANDARD FLUE KIT

Product Code: HBOVA00280

£1163.74 Each exc VAT




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