Case Study

First Cymru – Ravenhill

This boiler replacement was carried out for First Cymru Buses in February 2022. 

Our relationship with the First Bus Group is strengthening after every job, having completed several works for them over recent years. A huge gas main installation, a series of warm air heaters, and regular servicing across multiple appliances have helped instil great trust in UES, and First Bus know that we are able to confidently step up and deliver any project efficiently. 

An engineering warehouse, an office block, and a spray room have been served by the now obsolete boiler for over 20 years at the Ravenhill depot in Swansea. The system was way past its heyday and unfortunately had become prone to intermittent faults, being completely unreliable for the operations it had to oversee. 

Our initial response to the problem was to send our project manager to survey the premises. In his findings, he found a series of issues including insufficient ventilation, inefficient appliances, and controls no longer fit for purpose. The gas supply was undersized, and the flue installation was prone to leaks. 

The inside of Broadmead Baptist Church in the centre of Bristol
Five condensing Vaillant boilers and accompanying system controls installed for First Bus in South Wales by Bristol based engineering company UES

Acting upon this, he set a plan to upgrade the controls and install a mechanical ventilation supply to produce sufficient fresh air for combustion. The main feature of the project was to be a complete system replacement, comprising a state-of-the-art heating system built of five high-efficiency appliances.  

The problems we would face included a lack of space and an awkward route to remove the old boiler parts and get the new parts in. Lifting equipment would have to be organised to work around a gap through an old coal chute. Asbestos was present in the plant room, and this was certainly an issue that would have to be immediately addressed by calling in a specialist company to line the room with fixtures and penetrations. 

When the team arrived on-site, our electrical engineer isolated all the plant equipment before stripping out the cabling in preparation for asbestos removal. Our installation team drained down the system and got straight to work dismantling the existing boiler and pipework. An A-Frame Gantry system was used to hoist the old parts out through the chute, and when the room was empty the space was thoroughly cleaned and the floor repainted. 

The inside of Broadmead Baptist Church in the centre of Bristol
Five condensing Vaillant boilers and accompanying system controls installed for First Bus in South Wales by Bristol based engineering company UES

Acting upon this, he set a plan to upgrade the controls and install a mechanical ventilation supply to produce sufficient fresh air for combustion. The main feature of the project was to be a complete system replacement, comprising a state-of-the-art heating system built of five high-efficiency appliances.  

The problems we would face included a lack of space and an awkward route to remove the old boiler parts and get the new parts in. Lifting equipment would have to be organised to work around a gap through an old coal chute. Asbestos was present in the plant room, and this was certainly an issue that would have to be immediately addressed by calling in a specialist company to line the room with fixtures and penetrations. 

When the team arrived on-site, our electrical engineer isolated all the plant equipment before stripping out the cabling in preparation for asbestos removal. Our installation team drained down the system and got straight to work dismantling the existing boiler and pipework. An A-Frame Gantry system was used to hoist the old parts out through the chute, and when the room was empty the space was thoroughly cleaned and the floor repainted. 

Five condensing Vaillant boilers and accompanying system controls installed for First Bus in South Wales by Bristol based engineering company UES