Why can the Holland Damp Proof System lower my heating bills?
Since the Holland damp system dries out the walls they become better insulator keeping the heat in the house. Also by lowering the humidity level of the air in the house one feels more comfortable at a lower temperature, which again leads to lower heating costs. Added to this, less energy is required to warm air with a lower humidity level (see also; Will the Holland Damp Proof System make my house colder).
