Shop the range: shop our 3-in-1 bathroom heaters
What is a 3-in-1 bathroom heater?
3-in-1 bathroom heaters are a compact all-in-one unit combining a light, an extraction fan and a heater in a single ceiling fixture. Newer models now stretch to 4-in-1 and even 6-in-1, adding cooling, air circulation and dry-heat functions on top of the basics.
Quick Guide
Our Best 3-in-1 Bathroom Heaters with Exhaust Fan and Light
- Things to consider before buying
- Our Best 3-in-1 Bathroom Heaters
- Airsway 6-in-1 - Most Versatile / Premium
- Ventair Sahara 4-in-1 - Best for Low Maintenance
- Mercator Jupiter - Best for Powerful Heating
- Fantech Response Radiance - Best for DIY Install
- Brilliant Marvel - Best All-Round Value
- Martec Phoenix - Best Metal-Body Build
- Mercator Airflow - Brightest Light for the Price
- Domus Orbis 4-in-1 - Best Retrofit Upgrade
- Conclusion
Things to consider before buying
Most 3-in-1 units only nail one or two of the three jobs really well, so it pays to know which specifications matter most for your bathroom before you buy. Below is a quick rundown of what each spec actually means.
Consider how much air extraction you need
For most people, extraction is the single most important spec to get right.
Extraction is measured in m³/hr. The bigger your bathroom, the higher this number needs to be. The unit should be mounted in the most central part of the room, never directly over the shower.
Choosing the right extraction is crucial - steam spreads through every part of the room and, once condensation sets in, you get the perfect breeding ground for mould and mildew. A high-extraction unit pulls the steam out before that happens.
A general guide for working out air extraction:
5m³ Bathroom = 100m³/hr Unit
10m³ Bathroom = 200m³/hr Unit
20m³ Bathroom = 400m³/hr+ Unit
Think about the type of heating
The heating function is underrated until the morning you actually need it. How it produces that heat now varies a lot between models, and it makes a big difference to running costs and maintenance.
Infrared / R7s heat tube: Instant, intense radiant heat that warms your body directly. Cheaper to buy, but the globes draw a lot of power and need replacing every few years - use only when needed.
Ceramic / PTC heating: A fan circulates warm air around the whole room and holds the heat even after switch-off. Low maintenance with no globes to replace, and generally the more modern, efficient option.
Consider the lighting
Lighting in a 3-in-1 is usually a modest brightness that covers basic function. Most modern units now use CCT (selectable colour temperature), so you can switch between warm white, natural white and daylight to match your other fittings.
Measure light by lumens, not watts. For a bathroom you want roughly 500-600 lumens per m². We recommend LED downlights spread evenly with one over the basin, or strip lighting under the vanity and around the mirror.
The colour and style
Today's 3-in-1 units are statement pieces designed to tie in with the rest of the bathroom, rather than something to hide. Black and white finishes are now standard, with sleek slimline panels replacing the old bulky globe-style units.
The Lighting Outlet's Best 3-in-1 Bathroom Heaters
We have matched each model below to what it does best - whether that is raw performance, value, style, low maintenance or easy installation.
Domus Airsway 6-in-1 Premium Slimline Bathroom Heater
Features:
- Six functions: heat, exhaust, circulation fan, dry heat, sway motion and LED light
- Patented Heat Breeze technology to minimise condensation
- 500m³/hr high extraction
- Oscillating sway design with digital wall controller
- Safety auto shut-off
Price (RRP): from $489.00*
*Price may have changed at time of reading
If you want the most feature-packed unit on this list, the Airsway is it. Domus has gone well beyond the usual three functions with a genuine 6-in-1 that even oscillates to push warm or cool air around the whole room.
Extraction
At 500m³/hr the Airsway handles medium to large bathrooms with ease, clearing steam and moisture quickly.
Heating
The standout is the patented Heat Breeze technology and oscillating sway, which spreads warmth evenly rather than heating one spot. Combined with the dry-heat mode, it is excellent for knocking down condensation on cold mornings.
Lighting and Control
An integrated LED light covers everyday use, and everything runs from a tidy digital wall controller so you are not juggling multiple switches.
Style and Finish
A premium slimline body in white or black with a clean architectural look that suits a high-end renovation.
View The Airsway by DomusVentair Sahara 4-in-1 Heat/Cool Exhaust Fan - SAH31WH, SAH31BL
Features:
- 5 Year Warranty
- Fan heat and fan cool function
- Ceramic heating coils - no globes to replace
- Premium 1500lm LED panel (4000K)
- 380m³/hr extraction, ducting and grille included
Price (RRP): $444.60*
*Price may have changed at time of reading
Ventair turned the classic 3-in-1 into a 4-in-1 by adding a cooling mode. Because it runs on ceramic coils rather than globes, it is one of the lowest-maintenance units you can buy.
Extraction
380m³/hr comfortably ventilates bathrooms up to around 20m³.
Heating
The ceramic-coil fan heater circulates warm air and keeps the room warm even after switch-off - no R7s globes blowing every couple of years.
Lighting
A slimline 1500lm LED panel (most rivals manage around 1000lm) bright enough to be the main light in a small to medium bathroom. Add downlights over the vanity in larger rooms.
Style and Finish
About as close to an architectural look as a bathroom fan gets, in black or white. A long-time customer favourite with very few returns.
Backed by a 5-year warranty - well ahead of the usual 3 years.
Mercator Jupiter 3-in-1 Bathroom Heater with CCT Light - BH182ESWWH
Features:
- Huge 560m³/hr extraction - the highest on this list
- 2000W PTC heater for instant warmth
- 20W CCT LED panel (selectable colour temperature)
- Quiet 100W ball bearing motor and metal body
- 3-gang wall controller and 1.5m duct included
Price (RRP): $313.95*
*Price may have changed at time of reading
If your priority is shifting steam fast and warming a big room quickly, the Jupiter from Mercator is hard to beat for the money.
Extraction
At 560m³/hr this is the strongest extractor here - ideal for large bathrooms or rooms that fog up quickly.
Heating
A 2000W PTC heater delivers serious instant warmth without any globes to replace. Note the heat and exhaust functions cannot be run at the same time.
Lighting
A 20W CCT LED panel lets you select your colour temperature to match your other fittings - a bright, practical main light for most bathrooms.
Style and Finish
Slimline metal body in black or white with an IPX2 rating, ready to install with the included duct and wall controller.
View The Jupiter by MercatorFantech Response Radiance 3-in-1 with Wireless Remote
Features:
- Plug-and-play with a wireless wall controller - no wiring down walls
- Lightweight ABS body for easy single-person install
- 313m³/hr extraction (high speed)
- 1560lm CCT LED light (3000K/4200K/6000K)
- Tungsten-halogen instant heat, IPX4 rated
Price (RRP): $460.00*
*Price may have changed at time of reading
Fantech are ventilation specialists, and the Radiance is built for fast, fuss-free installation. It ships with a standard plug and a wireless switch, so there is no chasing cabling through walls.
Extraction
313m³/hr on high speed clears steam and dampness quickly, with a quiet low-speed mode for everyday use.
Heating
Twin 500W tungsten-halogen heat globes give instant radiant warmth on cold mornings.
Lighting
A bright 1560lm CCT light switches between warm, neutral and daylight - we recommend the 4200K middle setting for bathrooms.
Style and Finish
Modern, low-profile frosted-glass design with an IPX4 rating and a removable grille for easy cleaning.
Brilliant Marvel 3-in-1 Bathroom Mate 2Lt CCT - 21478/05, 21478/06
Features:
- Great value from a 30+ year brand
- 3-year replacement warranty
- 500m³/hr extraction with quiet 55W ball bearing motor
- Twin 8W CCT LED (up to 1200lm), 3000K/4200K/6000K
- Auto thermostat switch turns the fan on above 50°C
Price (RRP): $315.27*
*Price may have changed at time of reading
Brilliant have been in the air-movement game for over 30 years and back their products well. The Marvel ticks every box for performance and style without pushing the price up.
Extraction
500m³/hr handles just about any size bathroom and removes moisture and fog quickly.
Heating
A 1000W instant-heat infrared tube warms you fast. The globe is easy to replace and available almost anywhere - use sparingly as it draws plenty of power.
Lighting
Twin 8W LEDs with CCT let you flick between warm white, cool white and daylight to suit the room.
Style and Finish
A clean, classy slimline body in matt white or matt black with frosted face plates that blend neatly into the ceiling.
Martec Phoenix 3-in-1 Bathroom Heater - MBHP1000M
Features:
- Solid metal housing with metal fascia
- 500m³/hr extraction, quiet at ≤45dB
- 20W CCT LED (up to 1695lm), 3000K/4000K/5000K
- 1000W R7s heat tube with thermal overload protection
- Remote-ready (MBHREM, sold separately)
Price (RRP): $306.86*
*Price may have changed at time of reading
The Phoenix from Martec stands out for its sturdy all-metal build at a sharp price - a great pick if you want something solid that does not feel plasticky.
Extraction
500m³/hr suits medium to large bathrooms and runs quietly at 45dB or less.
Heating
A 1000W R7s heat tube delivers instant radiant heat, with built-in thermal overload protection for safety.
Lighting
A bright 20W CCT LED reaching up to 1695lm, switchable across three colour temperatures.
Style and Finish
Sleek, low-profile metal body in black or white, with cut-out template and 3-gang switch included.
View The Phoenix by MartecMercator Airflow 3-in-1 Bathroom Heater CCT LED Light
Features:
- Twin 11W LED panels, up to 1200lm CCT (3000K-5000K)
- 500m³/hr high extraction
- 800W R7s linear heat lamp for instant warmth
- 60W ball bearing motor, IP22 rated
- 3-year warranty, 3-gang wall controller included
Price (RRP): from $298.00*
*Price may have changed at time of reading
The Airflow from Mercator is one of our best-value all-rounders, with twin LED panels that put out plenty of light for the price.
Extraction
500m³/hr clears steam quickly across medium to large bathrooms.
Heating
An 800W R7s linear heat lamp gives instant warmth, with a thermal cut-out and overheating protection for peace of mind.
Lighting
Two bright 11W LED panels reaching up to 1200lm with selectable colour temperature - enough to be the main light in most bathrooms.
Style and Finish
Modern slimline design in black or white. Highly reviewed by customers, with many noting how much larger and more modern it makes the room feel.
View The Airflow by MercatorDomus Orbis 4-in-1 Retrofit Bathroom Heater
Features:
- Designed to retrofit older 3-in-1 cut-outs
- 4 functions: heating, extraction, circulation and light
- Modern PTC heating technology
- Sleek circular design
- User-friendly controls with built-in safety features
Price (RRP): $174.07*
*Price may have changed at time of reading
The Orbis from Domus is the smart, low-cost way to upgrade a tired old unit. Its circular profile is designed to retrofit into existing 3-in-1 cut-outs, so it is an easy swap.
Extraction
300m³/hr suits small to medium bathrooms and everyday ventilation.
Heating
Modern PTC heating gives efficient, low-maintenance warmth with no globes to replace.
Lighting and Circulation
Combines light with a circulation function on top of heat and extraction - four jobs in one tidy round fitting.
Style and Finish
A clean, contemporary circular design in white that suits modern bathrooms and freshens up an older ceiling instantly.
View The Orbis by DomusSo, what are the benefits of a 3-in-1 bathroom heater?
A 3-in-1 with the right extraction for your room is essential for ventilation. Adequate ventilation removes stale air and odours and is required under certain building codes to prevent unhealthy conditions. Condensation forms when warm, moist air hits cooler surfaces like walls, ceilings and windows, leading to mould, peeling paint and timber decay. A high-quality extractor stops that before it starts.
Summary
There are a lot of options, and the specs can feel overwhelming. The short version: pick the Airsway or Sahara for premium, low-maintenance comfort; the Jupiter for raw extraction and heating power; the Fantech Radiance if you want an easy DIY install; the Marvel, Phoenix or Airflow for strong value; and the Orbis for a quick, affordable retrofit.
If you have any more questions please do not hesitate to contact us.
