The radon fan is the heart of a mitigation system — the component that actively pulls soil gas out from beneath your home and sends it safely outdoors. If your Calgary home has tested above the 200 Bq/m³ guideline and you are scheduling an installation, knowing what the process looks like takes the mystery out of it. Here is a clear walkthrough of what to expect.
A quality installation starts with an on-site assessment. The professional examines your foundation, identifies the best location for the suction point, plans the pipe route, and selects a fan sized to your home's specific sub-slab conditions. Tighter Alberta soils need a more powerful fan; loose gravel needs less. This planning is what ensures the system actually performs once it is running.
Most residential installations are completed in a single day, typically within a few hours, though complex homes can take longer.
The installer cores a hole through your concrete slab — usually in a basement utility area, mechanical room, or unobtrusive corner — and removes a small amount of gravel beneath to create a suction pit. There is some noise and concrete dust during this stage, which a good crew contains and cleans up.
Major foundation cracks, the perimeter of a sump pit, and gaps around pipes are sealed. This improves the system's efficiency so the fan can achieve the lowest possible radon level.
Sealed PVC pipe is connected to the suction point and run to a discharge location above your roofline. Routing options include running up through an interior chase to the attic and out the roof, or along an exterior wall. Your installer will discuss the route in advance so you know exactly where the pipe will go.
The radon fan is mounted outside the living space — in the attic, garage, or on the home's exterior — so its slight hum is never inside occupied rooms. It is wired to a dedicated power source.
A small U-tube pressure gauge (manometer) is fitted to the pipe at eye level. Uneven liquid levels confirm the fan is creating suction. Level liquid means the fan has stopped — your simple at-a-glance health check.
This is the most common concern, and the answer is reassuring. Because the fan is mounted outside the living area, most homeowners hear little to nothing indoors. There may be a faint air-rushing sound near the pipe and a gentle outdoor hum at the discharge point, but a properly sized, quality fan runs quietly. If excessive noise occurs, it usually points to an installation issue worth addressing.
The system is not truly finished until it is proven. After the fan has run for a period to stabilize, a post-mitigation radon test confirms your new level is below the guideline. Onyx Radon includes this verification test with every installation, so you receive documented evidence — not just a working-looking system.
A radon fan is designed to run continuously, 24/7. It uses a small amount of electricity — typically only a few dollars a month. There is essentially no maintenance beyond glancing at the manometer occasionally. Fans are durable but not eternal; expect to replace the fan roughly once a decade, a simple and inexpensive swap.
A professional installation leaves you with a quiet, code-conscious system, a clear explanation of how to read the manometer, documentation of your post-mitigation result, and a warranty on the work and the fan.
Radon fan installation is fast, clean, and largely unobtrusive — usually one day, minimal disruption, and a quiet system you will quickly forget is even running. The result is rock-solid protection that keeps working for years. Onyx Radon's C-NRPP certified team installs and verifies every system across the Calgary area, so you know your home is protected for good.
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