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Case study
Vaillant ecoTEC plus 48 kW heating upgrade with hydraulic separation.
Completed by Oxyplumb Commercial in Carterton, Oxfordshire. Our commercial team supports heating and water projects across Oxfordshire and the Cotswolds, with nearby projects considered individually.

The project
Carterton Town Hall’s Worcester Bosch CDi Classic boiler had become unreliable and was repeatedly breaking down. Following a survey of the Alvescot Road premises, the Oxyplumb Commercial team specified a Vaillant ecoTEC plus 48 kW boiler for the replacement.
The manufacturer-backed guarantee was extended from five to ten years, giving the Town Hall longer-term cover for the new boiler.
The heating system was fully drained and flushed before the installation began. A plate heat exchanger provides hydraulic separation between the new boiler and the established building circuit, helping protect the replacement equipment while allowing the existing controls to remain in use.
The system was filled, tested and fully commissioned. Every radiator circuit was checked before the Oxyplumb Commercial team completed the handover with the client.
The failed boiler and all installation waste were removed from site and disposed of responsibly.
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99% of customers recommend Oxyplumb on the official profile.
Google and Which? rating figures checked on 21 October 2026.
COMMERCIAL BOILER REPLACEMENT
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