System Boilers

What is a system boiler?

The major components of the heating and hot water system, including the pump and expansion vessel, are built into the system boiler, and a sealed hot water cylinder in the system provides hot water for the taps and heats radiators. There is no need for a feed or expansion cistern in the loft, which saves space and eliminates the risk of any leaks or frost damage to pipes and tanks.

System boilers provide a high flow rate of hot water to deliver quick filling baths or powerful showers, thanks to the in-built pump, without the water running cold elsewhere in the house. They are compatible with unvented hot water storage cylinders, such as Megaflo Eco from Baxi’s sister company Heatrae Sadia.

Baxi 618kw System

Installed with an unvented cylinder on a fully pumped sealed system, it is perfect for larger properties with several bathrooms or those with a high demand for hot water.

  • 7-year parts and labour warranty*
  • Built in the UK using top quality brass components
  • Made right here in the UK since 1866
  • ErP A Rated (93% Efficiency)
  • Fits inside a standard kitchen cupboard
  • Compatible with market leading Megaflo Eco cylinder
  • Certified to work with 20% hydrogen
  • Financial available

Installed from just:

£2250

Inc VAT

Confirm price with a survey

Baxi 624kw System

Similar to the sister 618kw system boiler but this one come with an extra 6kw of power to help with large houses where an unvented cylinder needs to be installed on a fully pumped sealed system, it is perfect for larger properties with several bathrooms or those with a high demand for hot water. The daddy of system boilers, huge power output.

  •  7-year parts and labour warranty*
  •  Built in the UK using top quality brass components
  • Made right here in the UK since 1866
  • ErP A Rated (93% Efficiency)
  • Knocking out a huge 27.4kw gross of heating power
  • Fits inside a standard kitchen cupboard
  • Compatible with market leading Megaflo Eco cylinder
  • Certified to work with 20% hydrogen
  • Financial available

Installed from just:

£2400

Inc VAT

Confirm price with a survey

Finance

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