A recent project in Chacewater involved the installation of a new humidistat-controlled extractor fan in a utility room. This installation provides an automated solution to control humidity and prevent condensation, with an exterior grill chosen to perfectly match the property’s existing features.
Utility rooms are the unsung heroes of many households, spaces where washing machines spin and tumble dryers work their magic. While incredibly useful, these activities introduce a significant amount of moisture into the air. Without adequate ventilation, this moisture has nowhere to go. It settles on cooler surfaces like windows and walls, leading to condensation, which over time can cause damp patches, peeling paint, and the growth of mould. This was the situation for a client in Chacewater, who needed an effective way to manage the humidity in their utility room. The solution was to install a dedicated, intelligent extractor fan.
Passive ventilation, such as opening a window, is often not enough, particularly during the colder, wetter months in Cornwall. A more reliable method is mechanical extraction, which actively removes the damp, stale air and expels it outside. For this particular installation, a humidistat-controlled extractor fan was selected. Unlike a standard fan that is operated by a simple on/off switch or connected to a light circuit, a humidistat fan has a built-in sensor. This sensor constantly monitors the relative humidity in the room. When the moisture level rises above a pre-set threshold – for instance, when the tumble dryer is running – the fan automatically switches on. It continues to operate until the humidity has been reduced to an acceptable level, at which point it switches itself off. This automated functionality means the room is protected from excess moisture without any manual intervention, providing a truly set-and-forget ventilation system. It’s an efficient approach, only using electricity when it’s actually needed to do its job.
The process of installing the new fan began with careful planning. The ideal location was identified on an external wall, positioned to provide the most effective air extraction while avoiding any structural elements or existing services like pipework. Using a 110mm core drill, a clean, precise opening was made through the masonry. This type of drilling creates a perfect circular aperture for the 100mm ducting, minimising disruption to the wall structure. Once the hole was drilled, the ducting was installed to carry the extracted air outside. On the exterior, a brown ventilation grill was fitted. This choice was deliberate, as the colour was selected to match the existing brown guttering and downpipes, allowing the new installation to blend in seamlessly with the property’s external appearance.
With the physical ventilation path established, the next stage was the electrical connection. Power for the fan was taken from the nearby socket circuit that served the countertop appliances. To do this safely and in line with electrical regulations, a fused connection unit, or spur, was installed. This unit provides a dedicated, fused outlet for the fan, isolating it from the main ring circuit and protecting it with the correctly rated fuse. The new fused spur was recessed into the wall next to the existing sockets, and a decorative faceplate was used to match the style of the other fittings in the room. This created a neat and integrated finish.
Running the cable from the new spur to the fan’s location required a discreet approach. To avoid unsightly surface-mounted trunking, the cable was routed behind the existing utility room cupboards and through small access holes made in the ceiling. This kept the wiring completely hidden from view, preserving the clean lines of the room. After the fan was mounted and all the electrical connections were made, the system was thoroughly tested to make sure the humidistat was responding correctly to changes in air moisture and that the fan was operating smoothly. The final step was to make good any areas that had been disturbed during the installation. The small access holes in the ceiling and the area around the new fused spur were filled, leaving a smooth surface ready for the client to decorate. This attention to detail is an important part of the process, leaving the space tidy and ready for its final finish. The new fan now provides a powerful and intelligent defence against condensation, protecting the home and creating a healthier indoor environment.
