Through-the-wall ventilation for the rooms that need it most.
Balanced Fresh Air
Continuous ventilation with synchronized airflow – no more stale rooms.
90% Heat Recovery
Preserve indoor heat while bringing in fresh outdoor air – even in winter.
Cold Climate Ready
Engineered to perform in real Canadian conditions (down to -25°C).
Whisper-Quiet
So quiet, you won’t even notice it’s running – as low as 16.5 dB(A).
Ultra-Efficient
Uses just 1.4 watts – about the same as an LED night light.
Ductless Installation
No bulky ductwork. Just a simple core hole and fast setup.
Often, yes. Everyday life adds moisture to the air: showers, cooking, drying laundry, even breathing. When that moist air has nowhere to go, it collects on the coldest surfaces, which in winter is usually the windows. Stale air that isn’t being replaced is also what makes a bedroom feel close in the morning, or a basement smell musty.
Newer homes, and older homes that have been sealed up with new windows or insulation, hold onto that air even more. They’re better for your heating bill, but they need a way to bring fresh air in and send moist, stale air out. That’s what a ventilation system like LUNOS does, in the rooms where you notice the problem.
Not necessarily. A furnace, heat pump or air conditioner moves air around and changes its temperature, but it uses the air that’s already inside. On its own, it doesn’t bring fresh air in from outside or send stale air out. Moving air and fresh air aren’t the same thing.
That’s why a home can feel warm and comfortable and still have wet windows or stale rooms. Ventilation is a separate job: swapping indoor air for outdoor air. LUNOS does that job, and works alongside whatever heating and cooling you already have.
An HRV (heat recovery ventilator) brings fresh outdoor air into your home and sends stale indoor air out, while holding on to the temperature inside: warmth in winter, and coolness in summer when the air conditioning is running. It doesn’t heat or cool your home on its own. It lets fresh air in without undoing the temperature you’ve set.
A ductless HRV does this without any ductwork. LUNOS units sit in an exterior wall, so fresh air comes in and stale air goes out right in the room. You’ll also hear it called a decentralized HRV: decentralized describes where the work happens; ductless describes what’s missing.
Because each unit works where it’s installed, you can ventilate one room, a few rooms or your whole home.
No. Each LUNOS unit installs through an exterior wall with one round hole, 162 mm (6-3/8") across. There’s no ductwork to run, no bulkheads and no ceilings to open up. That makes it a natural fit for older homes built without ducts, basements and suites, additions, laneway and tiny homes.
If you already have a central system that works but misses a space, such as a basement or a far bedroom, LUNOS can fill that gap without touching the existing ducts.
A ducted HRV is a good system too. In a home that already has ductwork, or a new build designed with room for it, a central system can be the simpler way to serve the whole house. We’re happy to help you work out which makes more sense for your home.
It’s a fair worry, especially if you’ve worked hard to seal your home. But the opening isn’t left as a hole. The installation sleeve is sealed into the wall, and an optional gasket gives an airtight finish around it. A hood or grille covers it outside, and the unit itself fills the opening, so the air that passes through goes through the heat-exchange core rather than around it.
As stale air leaves, the core holds on to its warmth and hands it to the fresh air coming in. So you’re not opening your home to the cold. You’re giving it a controlled way to breathe, while keeping most of the heat you’ve paid for.
Yes. That’s what it’s built for. The controls sold in Canada are programmed specifically for Canadian winters, including a defrost mode. Because the heat-exchange core holds on to your indoor warmth, the fresh air coming in arrives much closer to room temperature than the air outside.
LUNOS is installed in homes and buildings across Canada, from social housing in Vancouver and Montréal to student residences in Edmonton. For cold, windy or exposed locations, we recommend one of the protective exterior hoods rather than the basic grille.
On the low and medium settings, most people find the e² series quiet enough to sleep with, which is how we recommend running it day to day. On high it’s audible, more like a small computer fan, and that setting is meant for short bursts.
If noise in a bedroom is a concern, the bedroom units can be put on their own control and set to run low, while the living areas run higher. An optional sound baffle for the interior screen also cuts noise.
It comes down to the room. The e² series is for bedrooms, living rooms and open areas, and is sold and installed in pairs. The e²60 is a higher-capacity version for spaces that need more air. The eGO is a single unit for bathrooms, kitchens, laundry rooms and other small, damp rooms.
Many homes use both: e² pairs for the main living spaces and an eGO for a bathroom.
The e² is installed in pairs. While one unit draws fresh air in, its partner sends stale air out, both at the same speed from the same control. That keeps the air coming in matched by design to the air going out, so your home isn’t pushed or pulled and doesn’t draw drafts in around doors and windows. Then the two units swap directions.
Inside each unit is a heat-exchange core. As stale air goes out, the core takes on its warmth (or coolness in summer). When the direction swaps, it passes that warmth to the fresh air coming in, so the air arrives closer to the temperature inside. The core is a polymer that’s lighter than older ceramic cores, takes less energy to make and is recyclable.
The controls sold in Canada are programmed specifically for Canadian winters, including a defrost mode that’s part of how the system handles deep cold.
The eGO is a single through-wall unit for bathrooms, kitchens, laundry rooms and other small, damp rooms. Instead of working in a pair, it has two fans inside one unit: one brings fresh air in while the other sends stale, moist air out, at the same time. So you get balanced fresh air and moisture control in a room where a pair wouldn’t fit or make sense.
Like the e², it has a heat-exchange core that holds on to your indoor temperature, warmth in winter and coolness in summer, as the air is exchanged.
It depends on your home’s size, layout and what you want to fix, but you usually need fewer than people expect. Air naturally moves between rooms, so you don’t need a unit in every room. A pair with one unit in a bedroom and one in a living area can bring fresh air in and let it carry through the rest of the space. A studio or one-bedroom apartment may only need a single pair.
As a starting point, the e² series goes in bedrooms, living rooms and open areas, and the eGO in a bathroom or other small, damp room. Some people start with one problem area, like a basement, and add more rooms later.
If your project involves a building permit or an engineer, they’ll set specific requirements for airflow and placement. Either way, we’re happy to look at your layout and suggest a setup. Send us a note with your rooms, wall thickness and where you’re located.
Heat recovery mode is how LUNOS is designed to run every day. Fresh air comes in, stale air goes out in equal amounts, and the core holds on to your indoor temperature as the air is exchanged.
Exhaust mode is a temporary setting that only pushes air out, the way a bathroom fan does. Nothing comes in to replace it, and no heat is recovered. It’s useful for a quick purge, such as after a shower or cooking.
This matters if you’re comparing ductless units. Airflow measured in exhaust mode gives a bigger number on paper, but it isn’t fresh air coming into your home. LUNOS publishes its airflow in heat recovery mode, the way it actually runs.
Yes. Every LUNOS unit filters the fresh air coming in, and you can choose the level of filtration.
Filters are changed from inside the room, in a few minutes, with no tools or technician needed.
Most LUNOS installations are done by a homeowner’s own contractor, renovator or electrician. Lunos Canada doesn’t have a network of certified installers, but the work is straightforward for anyone used to building work. Each unit needs one round hole cored through an exterior wall, a sealed sleeve, a hood or grille outside, and low-voltage wiring to a control on the wall. The wiring is thin and easy to hide, and there’s no ductwork.
The electrical connection should be made by a qualified electrician. Installation manuals for every unit are on our Downloads page, and our team is happy to answer questions from you or your installer before and during the job.
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