The rooms of the Palas, the royal residence, were fitted with hot air central heating. Running water was available on every floor and the kitchen had both hot and cold water.

Despite its medieval "fairytale" appearance, Neuschwanstein Castle was a marvel of late 19th-century technology and featured a sophisticated central heating system. King Ludwig II of Bavaria insisted on modern comforts, so the castle was equipped with a "Calorifère" system. This involved large furnaces located in the basement that heated air, which was then circulated through a network of concealed ceramic pipes and vents built directly into the walls of the palace's many rooms. This allowed the king to enjoy a warm environment without the soot and smoke of traditional fireplaces, which were mostly ornamental in the main living quarters. Additionally, the castle featured an automatic flushing system for toilets and a battery-powered bell system for summoning servants. Today, the castle is maintained as a museum, and modern climate control systems have been integrated to preserve the delicate wood carvings and wall paintings from the damp, cold Alpine air while keeping the interior comfortable for thousands of daily visitors.