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93 guides, all free to read.
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The three most people need.
How much is a new boiler?
Why we do not publish a price for a new boiler, what actually drives the number on your quote, and how to read one properly.
Read the guideWhich boiler suits my house?
kW output explained without the jargon. Why a bigger boiler is not a better boiler, and how installers actually work it out.
Read the guideIs mine on its way out?
Boilers rarely die without warning. The signs are there months in advance, and spotting them is the difference between replacing on your terms and replacing in a cold house in January.
Read the guideCOSTS AND MONEY
Costs.
CHOOSING
Choosing a boiler.
THE INSTALLATION
The job itself.
THE FULL LIBRARY
Every guide, by topic.
Everything we have written, including the rows above. Nothing is behind an email address.
COSTS AND MONEY
What it costs.
Is a boiler quote legally binding?Is there a gas boiler ban? What it means if yours is failingDo I have to replace the boiler before I sell the house?How much does a new boiler cost in 2026?Should I repair or replace my boiler?How efficient is my boiler, really?Boiler quote red flags: what to look for before you signIs it worth replacing a boiler that still works?My boiler quote seems too high, is it?Why are boiler quotes so different?Combi boiler supplied and fitted: what that price actually includesWhere the money actually goes in a boiler quoteAre smart thermostats worth it?
WHEN IT GOES WRONG
Faults and breakdowns.
Is my boiler the right size for this house?My boiler keeps breaking down: what the pattern is telling youMy boiler is 15 years old, should I replace it?Signs your boiler is on its way outVaillant F28 fault code: what it means and what to checkBoiler fault codes explained: what the code on your display is really telling youWorcester Bosch C6 fault code: what it means and what to doIdeal boiler F3 fault code: what it means and what to doIdeal boiler F2 fault code: what it means and what to doIdeal boiler F1 fault code: what it means and how to fix itVaillant F75 fault code: what it means and what to checkWorcester Bosch E9 fault code: what it means and what to checkWorcester Bosch EA fault code: what it means and what to checkBoiler beyond repair? What to do the same dayNo hot water but the heating works? Here's whyBoiler making a banging, whistling or gurgling noise?Boiler pressure too high? What to doHow to bleed a radiator (and when it won't help)Combi not heating the water hot enough?Boiler keeps turning itself off? Here's what's happeningHow long does a boiler last?Boiler losing pressure? Here's what's happening
THE INSTALLATION
Fitting and pipework.
When is the best time of year to replace a boiler?Does a new boiler need electrical work?Boiler flue regulations: where a flue can and cannot goReplacing the whole heating system, not just the boilerDoes your new boiler quote need a condensate pump?Potterton boiler parts unavailable: should you replace it?Replacing a regular boiler with a system boiler: what stays?Can you keep your smart thermostat with a new boiler?The freeholder said no: boiler and flue permission in a leasehold flatLocal vs national boiler installers: who should you get a quote from?Boiler Plus: the extra your combi quote has to includeDo I need new radiators with a new boiler?Back boiler removal: what is actually involved?What's the best boiler for a 3-bed house?What does a boiler survey actually check?Hard water and new boilers in Northampton and Milton KeynesDo I need a new gas meter for a new boiler?Where can a boiler legally be installed?Can you get a boiler quote without a survey?Do I actually need a power flush?Does a new boiler need a bigger gas pipe?Can I upgrade my water supply pipe, and is it worth it?Boiler installation in Northampton: what your house will throw at the jobBoiler installation in Milton Keynes: why so many MK houses share the same three problemsWhat mains water flow rate do you need for a combi boiler?Can you move a boiler to another room? What actually decides itWhat's the best boiler for a 4-bed house?New boiler paperwork: Benchmark, Building Regs and your warrantyConverting a conventional boiler to a combi: what's actually involvedHow long does it take to fit a new boiler?10 questions to ask before you accept a boiler quoteWhat size boiler do I need?Combi, system or regular: which boiler do you actually need?
BY BRAND
Which boiler to buy.
Alpha boiler quotes: what makes the warranty 10, 11 or 13 years?Viessmann 050-W vs 100-W: is the upgrade worth it?Ideal Logic Max vs Vogue Max: how to compare two boiler quotesGlow-worm boiler quote: which guarantee are you actually getting?My installer wants to fit a brand I have never heard ofWorcester Bosch vs Ideal: how to choose between two quotesWorcester Bosch vs Vaillant: which should you have fitted?Boiler brands to avoid: what those lists get wrongBaxi boilers reviewed: what the warranty actually saysIdeal boilers reviewed: what the warranty actually saysVaillant boilers reviewed: what the guarantee actually saysWorcester Bosch boilers reviewed: what that long guarantee actually requiresBoiler warranties: what actually voids themBoiler brands compared: what you are really paying extra for
PAYING FOR IT
Spreading the cost.
SAFETY AND PAPERWORK
Staying safe and legal.
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