Saturday, April 30, 2011
The components of the system that are specific to radon systems were purchased online since they could be found cheaper there or were not available at all locally. I made my best attempt at achieving the lowest overall cost, which meant I spent a little extra on some of my items in order to save on shipping.
Fantech HP190 radon fan: $120
Rubber connectors: $18
Exhaust cap: $33
Condensate bypass kit: $17
U-tube manometer: $22
Shipping & tax on online items: $36
All of the rest of the items were found locally.
4" PVC Sch 40 pipe, elbows and couplings: $77
Roof flashing: $6
14/2 romex wire: $12
15 amp breaker: $6
Hanging strap, concrete mix, glue: $6
All materials total: $405
I didn't keep track of my time spent on the project, but with muliple trips in and out of the attic, concrete hole cutting done the cheap way, and roof flashing work done in the dark, I probably spent close to 30 hours to complete everything. I'm told a contractor would probably charge about $1,200 for the type of system I installed, but as I mentioned in my first post, I prefer to do this kind of project myself. My conclusion: I think this kind of project is well withing the skill level of most DIYers; a bit of planning and testing ahead of time can streamline the project; and like most home projects, there is an opportunity to save a little money.
Wednesday, April 20, 2011
Sunday, April 10, 2011
Saturday, April 9, 2011
Friday, April 8, 2011
"The more you learn, the more humble you should be."
- Kevin Swanson, speaking at the American Vision Midwest Conference at Providence Church in Morton, Illinois
Mr. Swanson's lecture emphasized the book of Proverbs as the foundation for any education as it is dedicated to inculcating wisdom, knowledge, and understanding. One doesn't have to look far to see the lessons of Proverbs lived out in society around us. When commenting about how the leaders of some churches in Colorado have embraced the homosexual movement there, Mr. Swanson quoted Proverbs 28:4a, "Those who forsake the law praise the wicked...." "Do you know how America got to be the way it is?" he asked, "America forsook the law!"
Come join us on Saturday for more challenging teaching from God's word.
Saturday, April 2, 2011
I next moved the tester to the other side of the basement, and recorded the 1.1 pCi/L average (shown above) over a three-day test. Those two tests were enough to convince me that the mitigation system was adequate to keep our home below our 4 pCi/L goal. Armed with this handy device, gathering data was so easy I felt compelled to measure more areas of the house. Upstairs, in our living room, the tester surprised me by reporting a concentration of 1.8 pCi/L after two days, which was higher than any of our readings in the basement. I let the tester continue to run for several more days, over which time the tester found the radon concentration continually dropping such that the average dropped to 1.3 pCi/L before I reset the tester and moved it into our bedroom. A reading of 1.1 pCi/L after two days satisfied my curiosity for that room.
Why was the radon concentration higher upstairs than in the basement? Since the house was closed up quite a bit between the time the system started operating, and the upstairs testing commenced, the sub-slab system may have removed more radon from the basement than was removed by the natural ventilation of the house upstairs. We had never tested the upstairs prior to installing the mitigation system, but one would expect the radon concentration there to be lower than the level in the basement without active mitigation.
We purchased our tester from Radon at Tahoe through Amazon.com, as they were one of many stores on the internet selling the item for $129.95, including free shipping. Now that I'm confident we've got our radon problem licked, I'm willing to let my local readers borrow this tool to check the radon levels in their homes. Let me know in the comments section or by email if you're interested.
Thanks for visiting!