Worcester Greenstar 30i combi swap
An old open-vent system replaced with a modern combi boiler — flue rerouted neatly through the kitchen ceiling void, no patching needed.
This Ashbourne family wanted to ditch their 1990s open-vent setup — the boiler was dying, the loft tank was an eyesore, and the heating controls dated from a different decade. We specced a Worcester Greenstar 30i combi for the modest 3-bed footprint: enough hot water for a single shower run, more efficient than anything they'd had before, and properly controllable from a phone.
Day one was strip-out and pipework reconfiguration. The old vented cylinder, header tank, and feed-and-expansion all came out. Pipework was reworked for combi-style flow with a new Adey magnetic filter on the return and a fresh dose of Sentinel X100 inhibitor. Day two was new boiler in, electrics through, and commissioning.
The interesting bit was the flue. The original boiler was tucked into an awkward airing cupboard with no flue route to an outside wall. We rerouted through the kitchen ceiling void and out the side return — tidy 90° bends, sealed properly, no patching to the kitchen ceiling. The customer didn't have to redecorate.
System balanced, controls programmed, customer talked through how it all works. Boiler registered for the 10-year manufacturer warranty on the spot. Most efficient heating they've had in 30 years.
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