Cardiff Bay · Electric hot water
A 200-litre Gledhill hot-water cylinder for a Cardiff Bay flat.
When everyone needs a shower or bath before 8am, the busiest hour is the one that matters. In this Cardiff Bay flat, we replaced the hot-water cylinder with a Gledhill 200-litre direct unvented model and fitted a new expansion vessel.
Electric immersion heating warms the stored water, and the mains supply delivers it to the taps and showers. The film follows our Principal Engineer, Kieran Heycock, through the installation.
Watch the Cardiff Bay installation
Cardiff Bay · Electric hot water
Gledhill cylinder replacement in a Cardiff Bay flat
Watch Kieran Heycock install a Gledhill 200-litre direct unvented cylinder and a new expansion vessel in a Cardiff Bay flat.
Would 200 litres suit your home?
Start with your busiest hour. Are two people showering one after the other, or is someone filling a bath while another tap is running? Stored capacity and the water coming into your home both matter.
At SwiftHeat UK Group Ltd, we assess first and recommend second. We ask about your peak use, check the mains supply and explain which cylinder size suits your home. You receive a fixed price before work begins.
Our 2026 Energy Efficiency Awards
At the Wales Energy Efficiency Awards, SwiftHeat won Boiler Installer and Heating Contractor of the Year. We were also Highly Commended for Energy Consultancy of the Year and Commended for Vulnerable Customer Support Organisation of the Year.
At the UK National Energy Efficiency Awards, we received a Special Commendation in the Boiler Installer and Heating Contractor of the Year category.
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From our South Wales base, we work across Wales and the UK on gas, oil, LPG and electric heating, hot water, air source heat pumps and solar power.