Are Martec exhaust fans good?

Martec is a long-standing name in the Australian ventilation and ceiling fan market, with an exhaust fan range that spans basic single-function extraction through to combination units with heating and lighting built in. As with any brand, the right model comes down to matching its airflow rating and IP rating to your specific bathroom, rather than judging on brand name alone.

Is Martec a good brand in Australia for bathroom exhaust fans?

Martec has a long-established presence in Australian bathroom ventilation specifically, alongside its ceiling fan range, and is commonly stocked alongside other established ventilation brands. Its exhaust fan and heating range is built around the categories most Australian bathrooms need: basic extraction, combination fan-heater-light units, and different noise and airflow ratings to suit room size.

What is the best exhaust fan brand or best exhaust fan for an Australian bathroom?

There's no single best brand or model, the right exhaust fan depends on your bathroom's size, the airflow rating needed to meet the National Construction Code's ventilation requirements, and the IP rating required for where the fan sits relative to your shower or bath. Martec is one of several established Australian brands worth comparing on those specifics rather than on name alone.

Do I need a licensed electrician to install a bathroom exhaust fan or heater?

Yes. Exhaust fans and bathroom heating involve electrical wiring and, in many cases, ducting through ceiling or wall cavities, so installation must be carried out by a licensed electrician to comply with AS/NZS 3000 (the Australian Wiring Rules). Anything installed in a bathroom also needs to meet the IP rating required for its specific water exposure zone, which an electrician will confirm as part of a compliant install.

Should my exhaust fan duct outside or vent into the roof cavity?

Always duct to the outside of the home, through the roof, eave or an external wall, rather than exhausting directly into the roof cavity. Venting into the roof space lets moisture and humid air build up, which can lead to condensation, mould, and timber or insulation damage over time. Proper external ducting is required under the National Construction Code and protects the home's structure long-term.

Martec Exhaust Fans and Bathroom Heating

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Martec exhaust fans and bathroom heating buying guide

Martec's bathroom range here splits into two jobs: a plain exhaust fan that clears moisture and odour, and a 3-in-1 unit that combines a heater, exhaust fan and LED downlight into the one ceiling fitting for a bathroom with no separate heating.

Plain exhaust vs 3-in-1

The Flow and Saturn ranges are exhaust-only, in round and square profiles, with Saturn adding a built-in LED light to the same fitting. The Striker and Forme ranges add a heater into the same unit, generally the simpler option for a bathroom that doesn't already have a heated towel rail or separate wall heater doing that job.

Sizing and installation

Fan size should match the room's floor area and ceiling height rather than defaulting to the largest available unit, and a 3-in-1 heater needs its own dedicated circuit in most cases, worth confirming with an electrician before ordering. Browse Martec's ceiling fans range for whole-room airflow, or see Martec's full range and bathroom heating and ventilation more broadly.

Frequently Asked Questions

What size exhaust fan do I need for my bathroom or laundry?

Exhaust fan size is determined by airflow capacity, measured in litres per second (L/s) or cubic metres per hour (m³/hr). As a general guide, the Australian Standard AS 1668.2 recommends a minimum of 25L/s for bathrooms and 40L/s for larger ensuites with a shower and bath. To calculate the right size for your space, multiply the room's length, width and height, then match this to the fan's rated capacity, as a rule of thumb, look for a fan that can achieve 15–20 air changes per hour.

Do I need a licensed electrician to install an exhaust fan?

Yes. Exhaust fans involve electrical wiring and, in many cases, ducting through ceiling or wall cavities, so installation must be carried out by a licensed electrician to comply with AS/NZS 3000 (Australian Wiring Rules). If your fan is being installed in a bathroom, it will also need to meet the IP rating requirements for the relevant water exposure zone. Engaging a licensed professional ensures your installation is safe, compliant, and won't affect your home insurance or building certification.

Should my exhaust fan be ducted outside or vent into the roof cavity?

Exhaust fans should always be ducted to the outside of your home, whether through the roof, eave or external wall, rather than exhausting directly into the roof cavity. Venting into the roof space allows moisture and humid air to accumulate, which can lead to condensation, mould and long-term timber or insulation damage. Proper external ducting is a requirement under the National Construction Code and is essential for protecting your home's structure over time.

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Martec exhaust fans and bathroom heating buying guide

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