Close

Manufacturers

Warmflow G-Series GS25B Boiler Repair, Service & Efficiency Rating

85.9%

SAP seasonal efficiency

Summary

The Warmflow G-Series GS25B has a SAP seasonal efficiency rating of 85.9%.

The G-Series GS25B is a Condensing Conventional boiler with a maximum power output of 25.51kw that uses Gas as its fuel source.

We recommend that you upgrade to a new, more efficient boiler to help reduce fuel bills and carbon dioxide emissions. Get quotes for a new boiler today

Specification

ManufacturerWarmflow
ModelG-Series GS25B
Fuel TypeGas
TypeConventional
MethodCondensing
Flue TypeRoom-Sealed
FanFan Assisted
Output (KW)25.51 - 25.51
Boiler ID
Manufactured From/To2007 - current

Get a boiler service or repair by trusted experts

In partnership with

Choose one option

Boiler Repair

British Gas will get your broken boiler back up and running quickly.

  • Transparent prices including all parts and labour
  • 12-month guarantee on repair work
  • Speedy service by a local engineer

Boiler Service

British Gas has a nationwide team of expert engineers that are there to keep your boiler running safely and efficiently for just £99​​.

  • Inspecting your boiler and controls to make sure everything’s safe
  • Opening up your boiler to check internal components
  • Checking for corrosion and leaks in the boiler and your heating system
  • Cleaning the system filter and other parts, if needed
  • Giving you a boiler safety checklist plus advice on energy efficiency
In partnership with

Similar Boilers to the Warmflow G-Series GS25B

(Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

Warmflow System S90HE 90.8% Efficient
Warmflow Kabin Pak KP90HE 90.8% Efficient
Warmflow Kabin Pak K90HE 90.8% Efficient
Warmflow Utility UP90HE 90.8% Efficient

Most Efficient Condensing Gas Conventional Boilers

Results ordered by efficiency. Some models may be obsolete.