Stetzier claims

[tom baker]

A Wisconson electrican, Dave Stetzer has invented the "stetzier" a plug in device that claims to reduce radio wave sickeness. His device filers the high frquency levels with a capacitor.
Heres a link <www.stetzerelectric.com>
I've attached two pictures of the box for his devices.
He started with stray voltage work and went into this field.

 

[petersonra]

how is this any better than other similar devices?

 

[tallgirl]

I like this FAQ from their website --

How many STETZERiZER Filters do I need?
It usually takes 20 filters to effectively "clean up" the average home. Homes with more electronic equipment (i.e. computers, printers, fax machines, televisions) may require more filters. View our filter installation instructions for more information.

Nothing like a product that insists you need to buy a lot of the product in order to get results!

 

[robbietan]

I wonder how many are needed to 'clean up' an office where I measured around 50 milligauss all around?

 

[brian john]

At what frequency? Is this a mis-wiring issue or a location issue?

 

[karl riley]

A colleague in Canada measured the frequencies and amplitudes before and after installing these filters. He then corrected the net current errors in the wiring. He found that eliminating net currents reduced the higher frequencies more effectively than the filters, and brought them down to acceptable levels.

So fix the wiring first before measuring any "dirty" frequencies.

Karl

 

[brian john]

Karl:

Maybe I am misreading the web site for this product, but it seems to me to be claiming it cleans up high frequency on the distribution system. Harmonics caused from switch mode power supplies. While I do a fair share of harmonic investigations, few which are actually an issue. I have yet to see harmonics as a residential issue, at least in my area. Though I do know at one time the utilities were concerned with a possibility of VFD?s on HAVC equipment and electric vehicle chargers.

Am I misreading the products claims?


Does anyone know the cost of these devices.

 

[zbang]

I wonder how many it takes to clean out the average homeowner's wallet.

 

[robbietan]

it is a location issue. the office sits next to a 230kV line, a 34.5kV line and there are two 115kV lines just across the street

 

[karl riley]

Brian, the only source of a health concern that I am aware of comes from this company. I am skeptical until I read an actual scientific study. "dirty" electricity is a value judgement and sounds like a sales pitch. If a representative of the company wants to give us some health research to look up (other than anecdotes) we welcome the info.

Karl

 

[catchtwentytwo]

I wonder how many it takes to clean out the average homeowner's wallet.

From the Stetzer Electric website:

"Notes on STETZERiZER filter quantities: As referenced in the STETZERiZER filter Frequently Asked Questions document, a typical home requires about 20 filters before its environment is effectively "cleaned up". While your home may require a different number than this, we recommend purchasing 20 filters to start. We understand that this may be a substantial investment, but after years of experience, our results speak for themselves. We recommend purchasing a Microsurgemeter if you want to measure the exact amount of filters needed to clean your specific environment."

 

[brian john]

Robbie:

Move or sheilding, only two options I know of at this time.

Karl: With a correctly installed branch circuit, would you expect the milligauss reading to be higher with switch mode power supplies (non linear loads) then you would read with a pure resistive load? Assuming both circuits current readings were the same?


FROM THE WEB SITE

Electrosensitive people have reported sensitivities with readings as low as 27 on the Microsurge meter. However, medium or even low Microsurge meter readings should not be interpreted as a guarantee that there is no harmful health impact; only a medical expert can determine that. Caution is required. Some harmful health effects of high frequency energy on humans appear to be cumulative, and possibly non-reversible. Science is inconclusive in this area, although the body of empirical evidence available for guidance continues to expand and stabilize.


1. Is there any evidence of health issues from properly installed circuits with electronics loads compared to non electronic loads?
2. Why was this product developed?
3. 27 what, 27 volts above the peak of the sine wave, the 27th harmonic,
4. I know I am not the smartest but I am baffled.

 

[karl riley]

I would not expect any difference in milligauss levels on a correctly wired circuit (hot amps = neutral amps) whether resistive or otherwise. Cancellation occurs on both. Triplens harmonics give higher neutral current but it still balances the hot. However, if wiring errors cause net current, since more neutral is shunted to grounding paths or other neutrals, a higher net current is produced.

I still have not seen any true health studies referred to. So no wonder their sales pitch is confusing.

Karl

 

[catchtwentytwo]

FYI:

STETZERiZER Filter = $30.00 Stetzerizer Microsurge Meter = $100.00

"The total number of filters required depends on the size of the home, the amount of electrical equipment, and the quality of the power from the grid. Twenty filters are normally adequate for a "typical" house."

"The preferred installation method is to be guided by the STETZERiZER Microsurge Meter, which measures the amount of high frequency energy present."

 

[karl riley]

And the amount of high frequency energy would depend on whether there is net current due to wiring error.

Karl

 

[robbietan]

"Move or sheilding, only two options I know of at this time."

It has to be shielding, they cant move their building (LOL)


"The preferred installation method is to be guided by the STETZERiZER Microsurge Meter, which measures the amount of high frequency energy present."

I know power lines only emit 60 Hz, dont know about this high freequency thing. If this "high frequency" comes from loads, maybe turning them off would be a good thing.

 

[tom baker]

I have a report from Canada on this issue. I don't know if I can get it posted or not. I'd like to get a copy to Karl.

 

[ghostbuster]

This group in our area is targetting the local school boards.Apparently our children and teachers could be at a health risk due to this "dirty power".The cost to "clean-up" an entire school board of schools could be HUGE. I agree that hard scientific proof is required.Any thoughts.

 

[brian john]

Karl:

In a properly installed 20 amp branch circuit with high harmonic loads (switch mode power supplies) would you not have have high frequencies between the neutral and line conductor.

 

[karl riley]

Brian, yes but they cancel.
Karl