JP,
Probably what you are hearing is the control transformer in the furnace.
Your thermostat and controls runs on 24V. There will be a small amount
of eddy current loss in the transformer, but that's about it.
Peace,
Pat
Thusly spake PJ McGarvey:
> I'm wondering if any of the guys here have tried measuring the parasitic
> energy loss of their hot air furnace, since I know some of you have those
> meters you can use to measure electricity usage.
>
> So I'm in the electrical panel this afternoon, and I noticed the furnace
> breaker is on, so I turn it off since we're not running the heat just yet.
> When I turn it off, I hear a buzzing sound stop, which is obviously the heater
> which is 3 feet to my right. Turn it back on, buzzing continues, back off,
> buzzing stops.
>
> Now I'm not assuming that the heater of all things uses any power when "off"
> like the way other electronic devices do, but is there even some microscopic
> amount being used? If so, add that up over the summer season, and it could be
> worth making sure these things are off...
>
> FYI, I usually leave the breaker off until it's heating season, but I think
> that the technician had left it on when he serviced it about a month ago.
>
> Thanks,
> PJ
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
>
> You are subscribed as pat@hornesystemstx.com
>
> Shop-talk mailing list
>
> http://autox.team.net/mailman/listinfo/shop-talk
>
> http://www.team.net/archive
>
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - http://www.avg.com
> Version: 8.0.173 / Virus Database: 270.7.5/1708 - Release Date: 10/4/2008
>11:35 AM
>
>
--
Pat Horne, Owner, Horne Systems
(512) 797-7501 Voice 5026 FM 2001
Pat@HorneSystemsTx.com Lockhart, TX 78644-4443
www.hornesystemstx.com
-- We support Habitat for Humanity - a hand UP, not a hand OUT --
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Shop-talk mailing list
http://autox.team.net/mailman/listinfo/shop-talk
http://www.team.net/archive
|