the master installs a gas boiler that hangs on the wall. the front dashboard is open. the heating is set up and started

adjusting aid artisan assistance boiler caldaista chauffage check checklist construction control controlling craftsman domu entretien fingers fitter fittings fix haus heating heizkessel home installing job ladies maintenance mantenimiento mechanic muratore occupation pipe plumber plumbing repairman riscaldamento room shooter sistema tallyman technician thumbs tool trouble troubleshooter upkeep worker workman