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Worcester Bosch Heatslave II 25/32kW External Oil Combi Boiler – IFC
Worcester Bosch Heatslave II 25/32kW External
£6,811.00
MSRP:
Starting from £6,811.00
Instant Advice Options
What's Included A powerful external combi for medium to large homes, offering strong hot water performance while freeing up indoor space.
- Hot water flow rate of 15l/pm
- With an ERP rating of A and efficiency of 91%
- Central heating output of 26kW
- WarmZilla is a trusted Worcester Bosch Installer
We offer fast and reliable boiler installations within 48 hours.
Every one of our engineers are Gas-Safe Registered.
We cover every UK postcode.
Rated Excellent on Trustpilot.
Don't Just Take Our Word For It: See Why UK Homeowners Trust WarmZilla!
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The Worcester Bosch Heatslave II 25/32 is designed for homes with higher heating and hot water demand, delivering stronger performance while maintaining the simplicity of a combi system. Its integrated hot water storage tank ensures consistent flow without requiring a separate cylinder, making it both efficient and practical.
Installed externally, it helps maximise indoor living space, which is ideal for homes where room is limited. The robust, weatherproof casing protects the unit year-round, while built-in frost protection ensures reliable operation during colder months. A strong choice for busy households needing dependable heating and hot water in one compact unit.
We offer fast and reliable boiler installations within 48 hours.
We cover every UK postcode.
kW Output
26 KW
Hot water flow rate
15 l/pm
ERP Rating
A Rated
Energy Efficiency
91 %
Dimensions
Height 950mm
Width 640mm
Depth 770mm
High hot water output
Integrated storage tank
Built-in frost protection
External installation
No cylinder required
ErP A-rated efficiency
Wireless Thermostat Included
Installation by a local Gas Safe Engineer (arriving between 8-11am)
Removal of existing system (inclusive of tanks if applicable)
Removal of installation rubbish off site including boiler
Boiler flue installation
Magnetic filter for ongoing protection
System cleanse of your heating system
Inhibitor and System cleaner for protection
Condensate pipework or upgrade (if applicable)
Gas pipe upgrade (if required)
Copper and fittings pack with pipe work installation
Electrical connections including thermostat (if applicable)
CO Alarm included
Delivery of package via courier or your local engineer
12-month WarmZilla workmanship warranty
Registration of warranty and Building Control Certificate by WarmZilla
Warranty includes parts and labour free via the manufacturer
Full protection of property, surfaces, and workspace throughout installation
Handover of your new boiler, including control panel and pressure top-up guide
Removal of redundant pipework and accessories (where necessary)
Removal of any old or unused controls (if applicable)
Sealing of external flue and condensate pipework to the building fabric
Making good of any brickwork around the flue exit
Commissioning of your new boiler for full operation
Balancing of your heating system (if required)
Final tidy-up and removal of all protective coverings
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