GRYNX

9th 2005f November, 2005

Op-Amp Hot Tub Temperature Controller

by @ 10:59. Filed under Cooling and heating, Projects
Hot tub temperature controller
A temperature controller is something that can be used in many scenarios.
Jake writes:

One evening late in the summer, I decided to take a little dip in the hot tub before bed. I went out to the patio, swung back the cover and slipped in. As usual, there was the sting of hot water that always goes away after a moment or two. However, this time it just got worse! I quickly got out and discovered that the temperature was 112 degrees and climbing! The temperature controller had gone bad.

In this DIY Jake will build a new controller to replace the broken one in his hot tub. I guess this curcuit could also be used for a ton of other applications, use your own imagination.

Link: Op-Amp Hot Tub Temperature Controller

11th 2005f October, 2005

Peltier beer cooler

by @ 20:55. Filed under Cooling and heating, Projects

Per Øyvind Arnesen writes:

While drinking certain dark beers in the sun, I came to think about how to keep the beer cold until I finished it.
Normally this isn’t a big problem as I usually finish them before they get warm, but on really hot days this can be a problem. Having some hardware lying around in my apartment, I decided to build something that could keep the beer cool.

And the best of all – it’s powered over Cat5!

Read on to see how he made his own PeltierBeer

15th 2005f July, 2005

DIY outdoor cooling system

by @ 18:59. Filed under Cooling and heating, Non electric hacks, Projects

Summer time is here in the northern hemisphere and with it comes the heat waves. Cooling indoors is of course not something new, but how about cooling down your sitting area outside? In this article we will show you how you can make use of some ordinary things you can find in your home and garage, and put this together to an efficient cooling machine.
I can only say this – you’ll need some cleaning deturgent in an spray bottle and a garden hose.
Read the full article at Grynx.com

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