Plumbers fit and service hot and cold water systems, heating systems and drainage networks. What did you do to get it working then? Ahs is a fully licensed and insured hydronic specialist for baxi heating systems. Are you up for the b&m challenge? If you have had any experience with the baxi ecogen boiler and would like to share it with people looking to invest in a new boiler, then the microchp section of our. All workmanship undertaken is covered by our month workmanship.