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AMERICAN VS: CANADIAN RADON MITIGATION SYSTEMS

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Image by Robert Linder

WHAT'S THE DIFFERENCE?

Simply put, the Canadian type radon system has the radon fan mounted inside the basement with the vent pipe venting through the wall near the ground similar to a dryer vent. The American type system typically has the fan mounted on the exterior wall near ground level and the vent pipe runs up the side of the house past the roof. In all most every other way the two types of systems are the same.

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WHY IS THE CANADIAN TYPE RADON SYSTEM BETTER?

In Canada they used to install systems following the American Standards in which most cases the radon fans were mounted on the exterior of the homes. The cold weather in Canada would sometimes cause the condensation produced in the vent pipe above the radon fan to freeze over and block the air flow which halted the radon mitigation until temperatures warmed up, days or weeks later and the ice melted. The freeze thaw process also greatly reduced the life of the fan. Some smart people in Canada got together and came up with a better idea.

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AMERICAN RADON SYSTEM WITH EXTERIOR FAN

The typical, most common American type radon mitigation system has the radon fan located on the exterior wall near ground level and the vent pipe runs up the exterior side of the house, above the edge of the roof. In all most every other way the two types of systems are the same.

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CANADIAN RADON SYSTEM WITH INTERIOR FAN

The Canadian government's recommendation for most residential radon systems is to have the radon fan mounted inside the home or basement. Only a small section of radon vent pipe extends through the wall near the ground, very similar to a high efficiency furnace exhaust vent.

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