Adding a bathroom changes more than the number of pipe connections. It can change the amount of hot water needed at one time and how quickly the system must recover afterwards.
We consider household use, likely simultaneous demand, storage options, available space and the incoming water supply. Where a cylinder is appropriate, its selection and location need to be coordinated with the heat source, controls, safety provisions and service access.
An unvented cylinder does not itself increase the capacity of a restricted incoming supply. Pressure and flow need to be assessed rather than inferred from the equipment being installed.
For projects moving away from a traditional tank-fed arrangement, our vented-to-unvented conversion guide explains the main considerations. Where the incoming supply needs further attention, home water-pressure boosting is a separate design decision, not an automatic addition.
For a standalone hot-water project, our hot-water cylinder replacement in Shepherd’s Bush service covers equipment selection, connections, controls and commissioning.
For a project that also needs more suitable domestic water delivery, our water-pressure boosting in Shepherd’s Bush can be coordinated with the plant layout, available storage and electrical supplies. This is separate from the pressure in a sealed central-heating circuit.