New installation, and repair for a list of our service areas & full plumbing services offered. Cemline electric boilers meet testing and inspection requirements of underwriters’ laboratories and are listed and labeled as required by underwriters’ laboratories. Aces21: energy-saving urea process. So pleased with services from start to finish. Correct boiler operation right from the outset. All baxi gas boilers meet and exceed the latest european standards for safety, energy efficiency, emissions.