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Only the best A-rated energy efficient boilers

Boilers that cut your monthly bills.

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Best value

Alpha E-Tec NX 28kW Alpha E-Tec NX 28kW overlay alpha

Alpha Etec NX

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11-Year Warranty

Ideal for small and medium homes

Stainless steel heat exchanger

Compact stylish design

Fixed price (inc. VAT)

£2,038

or, monthly from

£42

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Budget boiler

Compact

Worcester Bosch 1000 24kW worcester

Worcester Greenstar 1000

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5-Year Warranty

Designed for cupboards

Great design at a lower price

Innovative 'QuickTap' water saving

Fixed price (inc. VAT)

£2,198

or, monthly from

£46

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Which? Best Buy Boiler

Best seller

Worcester Bosch 2000 25kW Worcester Bosch 2000 25kW overlay worcester

Worcester Greenstar 2000

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7-Year Warranty

Worcester's quietest combi boiler

Big brand budget boiler

New sleek compact design

Fixed price (inc. VAT)

£2,198

£2,248

or, monthly from

£46

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Modern new design

Worcester Bosch 4000 25kW Worcester Bosch 4000 25kW overlay worcester

Worcester Greenstar 4000

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10-Year Warranty

Innovative 'QuickTap' water saving

Powerful to meet your needs

£150 off - Ends Friday 🎉

Fixed price (inc. VAT)

£2,468

or, monthly from

£51

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Suitable for kitchen cupboards

Ideal Logic² Plus 24kW Ideal Logic² Plus 24kW overlay ideal

Ideal Logic² Plus

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10-Year Warranty

Made in the UK

Built in frost protection

Compact design for cupboards

Fixed price (inc. VAT)

£2,488

or, monthly from

£52

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Modern but affordable

Viessmann Vitodens 050-W 25kw Viessmann Vitodens 050-W 25kw overlay viessmann

Viessmann 050

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10-Year Warranty

10 year warranty

Compact dimensions & quiet

Fits into kitchen cupboards

Fixed price (inc. VAT)

£2,518

or, monthly from

£52

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Everything you need to know

Find quick answers to our most common questions.

Boiler help & expert guides

Boiler Installation London

Boiler Installation London

Selecting the appropriate boiler for your London home involves understanding the different types ava...

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Stephen Day

Gas Safe Engineer

19 February 2026

Guides

Boiler Service London

Boiler Service London

A typical Annual Boiler Service includes a visual inspection to identify any obvious faults and test...

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

19 February 2026

Guides

Boiler Service Bolton

Boiler Service Bolton

Boiler servicing comprises a set of inspections and tests conducted by a qualified engineer to ensur...

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

19 February 2026

Guides

Boiler Installation Glasgow

Boiler Installation Glasgow

Boiler installation is a critical process entailing the careful selection and fitting of a heating s...

Stephen Day profile photo

Stephen Day

Gas Safe Engineer

19 February 2026

Guides

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