Economisers, namely, devices for warming feed water in heating boilers; Faucets; Flexible pipes being parts of basin plumbing installations; Flexible pipes being parts of bath plumbing installations; Heating installations; Heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or low temperature water circulates; Hot-water space heating apparatus; Pipe heating tape; Pipes being parts of sanitary facilities; Plumbing fittings, namely, bibbs, cocks, traps, valves