Comments on: PIC based boiler controller http://hackaday.com/2008/07/21/pic-based-boiler-controller/ Fresh hacks every day Tue, 24 Nov 2009 02:32:55 +0000 http://wordpress.com/ hourly 1 By: Mark http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39349 Mark Tue, 22 Jul 2008 04:41:30 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39349 I did something similar to this last year.<br>I wanted to replace my AC thermostat that used the old mercury bubble method to something programmable.<br><br>I built it out of a pic 16f88, a dallas ic for the temperature, two relays, and a 16x2 lcd display.<br><br>One thing that irked me about my current thermostat is that if the heat pump outside was running and the temperature was reached , the fan inside just shuts off. So all that cold refrigerant and those cold coils inside were just wasted energy. <br><br>I set my project to cut off the heat pump when the temp was reached but to let the fan inside blow for another 2 minutes. It actually did lower my electric bill .<br> I did something similar to this last year.
I wanted to replace my AC thermostat that used the old mercury bubble method to something programmable.

I built it out of a pic 16f88, a dallas ic for the temperature, two relays, and a 16×2 lcd display.

One thing that irked me about my current thermostat is that if the heat pump outside was running and the temperature was reached , the fan inside just shuts off. So all that cold refrigerant and those cold coils inside were just wasted energy.

I set my project to cut off the heat pump when the temp was reached but to let the fan inside blow for another 2 minutes. It actually did lower my electric bill .

]]> By: Scott http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39348 Scott Tue, 22 Jul 2008 01:33:43 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39348 <a href="http://web.archive.org/web/20021023165639/http://www.geocities.com/JDPetkov/Hardware/HomeHeat/HomeHeat.htm" rel="nofollow">http://web.archive.org/web/20021023165639/http://www.geocities.com/JDPetkov/Hardware/HomeHeat/HomeHeat.htm</a> http://web.archive.org/web/20021023165639/http://www.geocities.com/JDPetkov/Hardware/HomeHeat/HomeHeat.htm

]]> By: jake http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39347 jake Tue, 22 Jul 2008 01:20:07 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39347 can someone mirror this? can someone mirror this?

]]> By: backwash http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39346 backwash Mon, 21 Jul 2008 20:32:53 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39346 Great project, although I would have preferred an AD temperature measurement scheme. Adjusting set points would be greatly simplified and could be changed on the fly. The PIC16F716 would be a good choice and it's internal clock would further lower the parts count. <br> Great project, although I would have preferred an AD temperature measurement scheme. Adjusting set points would be greatly simplified and could be changed on the fly. The PIC16F716 would be a good choice and it’s internal clock would further lower the parts count.

]]> By: Frollard http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39345 Frollard Mon, 21 Jul 2008 19:58:45 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39345 @1:<br>Really though - they're not gonna pay to host a site they happen to put up for our benefit, documenting what they have done. They can't help that hackaday has this tendency of destroying linked webservers.<br><br>Its a neat project mirroring existing commercial systems. good stuff. @1:
Really though – they’re not gonna pay to host a site they happen to put up for our benefit, documenting what they have done. They can’t help that hackaday has this tendency of destroying linked webservers.

Its a neat project mirroring existing commercial systems. good stuff.

]]> By: Comm_Hawk http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39344 Comm_Hawk Mon, 21 Jul 2008 18:00:05 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39344 None of the links work. Geocities Fail None of the links work. Geocities Fail

]]> By: farevalod http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39343 farevalod Mon, 21 Jul 2008 17:29:03 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39343 If you provided said web servers at a competitive (read: free) price I'm sure everyone would be pleased to suit you. If you provided said web servers at a competitive (read: free) price I’m sure everyone would be pleased to suit you.

]]> By: jc http://hackaday.com/2008/07/21/pic-based-boiler-controller/comment-page-1/#comment-39342 jc Mon, 21 Jul 2008 16:18:06 +0000 http://hackaday.iheartcashews.com:8181/2008/07/21/pic-based-boiler-controller/#comment-39342 It would be nice if people hosted their pages on real web servers, instead of those toy sites, like Yahoo and GeoCities. It would be nice if people hosted their pages on real web servers, instead of those toy sites, like Yahoo and GeoCities.

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