Bathroom heating and ventilation — radiant heat lamps, fan-forced heaters, and combination units pairing heat, exhaust and light in a single ceiling fitting.
Choosing a bathroom heater
Should I get a 3-in-1 or separate units?
A 3-in-1 combines heat, exhaust and light in one ceiling cut-out, which is the practical choice in most bathrooms and the cheapest to install. Separate units give you a better exhaust fan and better light, and make sense in a large bathroom or where the ceiling space allows it.
Heat lamps or fan-forced heating?
Heat lamps are radiant: they warm you within seconds but do little to the room, which suits a quick morning shower. Fan-forced warms the air and takes 5 to 10 minutes to lift the room, which is better if you want the whole space comfortable — a bathroom used by children, for instance.
How much heating does a bathroom need?
A typical family bathroom is served by around 1,000–1,400W of radiant heat, which is two to four heat lamps. Larger or poorly insulated rooms, and fan-forced units, run higher. Oversizing wastes power; undersizing means it never quite warms up.
How much ceiling space does a 3-in-1 need?
More than people expect. These units need clear void above the ceiling for the body plus a run of 150mm or 200mm duct, and they cannot be covered by insulation. If you have a concrete ceiling or a shallow void, check the required clearance on the product page before ordering.
