LHS Plumbing & Heating Blog - Tips, Guides & Case Studies

If radiators at the far end of a large property aren't heating up while the boiler runs constantly on full pump speed, the cause is often a flow rate problem rather than a faulty boiler. On a recent job in Loughton, we resolved exactly this by fitting a custom-made low loss header and an additional circulator pump to a Worcester Bosch Greenstar CDi Classic Regular boiler serving 18 radiators and a hot water cylinder. This is a common issue in larger homes in IG10 and the surr

Our Gas Safe heating engineers successfully upgraded an existing heating system in Woodford Green that was putting pressure on the boiler and its pump. This system comprised 3 circuits: 2 underfloor heating circuits and 1 unvented hot water cylinder circuit, each with a pump. The boiler was a Baxi Potterton Promax system boiler with an Grundfos 15-60 internal pump. In this system, up to three pumps were operating through the boiler depending on circuit demand - ranging from a

Our team was called out to a Vaillant 637 boiler breakdown in Woodford Green, issue described - load banging when the boiler was on, causing the boiler to over heat and shut down, showing various fault codes on the interface. After inspecting the boiler it was confirmed the main heat exchanger was partially blocked and filled with magnetite, sludge and scale produced by the radiators in the system. Client had two options: Flush main heat exchanger and boiler or Replace the bo