Real SwiftHeat UK project
A new combi. Familiar controls. Long-term confidence.
Pencoed, South Wales · Completed
An old, failing combi replaced with a Worcester Bosch Greenstar 8000 40kW combi, with magnetic filtration and connection to the homeowner’s existing Tado thermostat.

The homeowner’s need
Replacing a failing combi.
The homeowner’s existing combi boiler was old and failing. SwiftHeat UK completed its replacement with a Worcester Bosch Greenstar 8000 40kW combi on 28 August 2026.
The project combined the new boiler with a system magnetic filter and the homeowner’s existing Tado thermostat. Retaining the thermostat allowed the replacement to work with the heating controls already in place.
The installation at a glance.
The replacement boiler
A new Worcester Bosch Greenstar 8000 40kW combi replaced the previous combi boiler, providing central heating and hot water on demand.
Existing Tado controls
The new boiler was connected to the homeowner’s existing Tado thermostat. A replacement thermostat was not part of this project.
Magnetic filtration
A system magnetic filter was fitted. Magnetic filtration helps collect magnetic debris circulating within the heating system.
A considered replacement
The boiler is one part of the heating system.
This project brought together the replacement appliance, existing controls and magnetic filtration. The project photograph shows the installed boiler and connected pipework.
The 40kW specification records the appliance installed at this property. Choosing a boiler for another home requires assessment of its heating and hot-water needs, existing system and installation requirements.
Explore a boiler match for your home →Guarantee and installation
Clear cover. Separate responsibilities.
Twelve-year manufacturer guarantee
This installation included a twelve-year Worcester Bosch manufacturer guarantee, subject to the applicable manufacturer terms and requirements.
Twelve-month installation guarantee
A separate twelve-month SwiftHeat installation guarantee was included for this project.
Understanding the difference
The manufacturer guarantee and installation guarantee cover different responsibilities. The project’s guarantee documents set out the applicable cover and conditions.
The manufacturer guarantee recorded here relates to this installation and its package. Cover for a new project is confirmed for the selected boiler and installation specification.
Understand manufacturer warranty cover →Is your combi ready for replacement?
Tell us about your current boiler and the problems you’re experiencing. We’ll help you understand your replacement options, controls and installation requirements.


