CPV: 45331000 Heating, ventilation and air-conditioning installation work, 39715210 Central-heating equipment, 39715240 Electric space-heating apparatus, 42131110 Central-heating radiator valves, 42131130 Temperature regulators, 42131140 Pressure-reducing, control, check or safety valves, 42511110 Heat pumps, 42512300 HVAC packages, 44115220 Heating materials, 44163121 Heating pipes, 44621100 Radiators, 45432100 Floor laying and covering work