We will need this information before we can proceed with your application. Baxi heating only boiler (adaptive gas valve technology). With 15 years plumbing experience, ecoscene can carry out a quick, easy and as hassle-free boiler replacement as possible, causing a minimum of disruption. Got a blockage or drains needing cleared, power washing services etc. Homeowners can rely on the combi boiler to provide on-demand hot water in any season or climate its pre-purge function.