[RFI] Another look at Geothermal H&V

[wb4mle at bellsouth.net]

On Sun, 13 Feb 2011 00:53:50 -0500, you wrote:

>I attended a seminar on GeoThermal H&V yesterday pushing the Trane 
>units. They use a variable speed fan that sounds like it may be 
>controlled by pulse width modulation.
>
>I asked if they would guarantee no RFI and the salesman said he'd have 
>to get back to me.  He's coming out Friday to give me a quote, but they 
>know I'm not interested in even trying it if they can not give me a 
>written guarantee ahead of time.
>
>It seems like Trane came up on here a while back but I've been unable to 
>find a reference to it.
>
Hi Roger- I have an American Standard by Trane outside package unit
with a variable speed inside blower. It is about 2 years old and is so
far noise free.
-- 
Eddie, WB4MLE