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13 articles
Swapping a tank-fed system for a Glow-worm combi changes more than the boiler. Here’s what happens to the old cylinder, loft tanks, immersion heater and pipework — and the questions worth asking before the dust settles.
Handing over a deposit for a new Glow-worm boiler shouldn't feel like a gamble. Here's how to structure payments, spot the warning signs and keep your money protected from quote to commissioning.
A boiler swap in an older UK home can hit an unexpected snag: suspect asbestos around the boiler, flue route or cupboard. Here’s why a Glow-worm installer has to stop, what the legal duties look like, and how to plan the replacement without turning a delay into a dash for the cheapest workaround.
If your kettle furrs up in a fortnight, your combi is quietly dealing with the same minerals every time you run a hot tap. Here's how limescale behaves inside a Glow-worm, how to work out whether your postcode is a problem, and which water-treatment extras genuinely earn a place on the installation quote.
Christmas has a way of exposing a tired boiler. Here's how to plan a Glow-worm replacement around the 2026 festive rush, from realistic lead times and installer availability to the checks worth doing now and the Plan B worth having in your back pocket.
Boiler Plus is easy to miss on a Glow-worm quote because it rarely gets the headline treatment. Here is a plain-English guide to the controls, efficiency figures and extra measures a compliant 2026 quote should spell out — and the questions to ask when it does not.
A new Glow-worm can be brilliant kit and still become a pain to live with if it is squeezed into the wrong spot. Here is how to judge a boiler location before the flue hole is cut, from condensate routes and service access to noise and the hidden cost of a very tidy cupboard.
A bigger Glow-worm boiler feels like the safe choice, but oversizing can mean cycling, higher bills and more wear. Here is the installer’s case for matching the boiler to the house — not to the fear of a cold snap.
A Glow-worm boiler can be fitted beautifully and still fail the one test that matters: the flue. This guide walks through plume management, terminal positions, condensate routes and the paperwork to check before you sign off an installation.
Smart controls, magnetic filters and weather compensation all sound sensible when they're bundled into a quote. Some of them are. Here's an honest, home-by-home breakdown of which Glow-worm add-ons pay you back and which just pad the invoice.
Not every cold radiator or noisy Glow-worm boiler needs a replacement. From balancing and TRV upgrades to pipe insulation and a magnetic filter, here are five cheaper fixes worth trying first, plus the honest signs that a new boiler really is the sensible answer.
Two quotes, same house, same Glow-worm boiler — and a four-figure gap. Here are the twelve questions that separate a properly priced installation from a cheap headline figure, written from the installer's side of the kitchen table.
For larger UK households with multiple bathrooms, a combi can run out of hot water at exactly the wrong moment. Here is how Glow-worm system boilers with stored hot water compare in 2026, and how installers size them for real hot-water demand.