Well any piece of woodwork doesn't like to be damp enough to rot, but they don't like to be too dry either. When central heating was just coming into common usage, my father decided to treat himself and buy a grand piano. Once installed in the lounge the tuner came (definitely a two cigar job tuning a piano). He insisted that unless we wanted him to move in to keep track of the tuning we should have humidifiers on the radiators. He even suggested that the drying would eventually split the soundboard. I guess he figured that if Dad could afford the piano, he could afford to run the heating flat out - how wrong can you be - but during the coldest months when there was little opportunity to ventilate the house, we hung humidifiers on the rads.
Rob.
