Peltier coolers, replacing, wear over time...

[eccerr0r]

I was wondering who had extensive experience with Peltier/Thermoelectric coolers, specifically for food/drink refrigeration though for high performance computing it's still relevant.

I wonder what is the lifetime of these things, do they tend to last forever? When they do degrade, how does it degrade?

If you can replace the Peltier element, is it worth to replace with a newer unit, will newer units tend to work better than old ones? Does upgrading do any good, or still stuck with the hot/cold max gradient?

[ReeceyBurger123]

Re: Peltier coolers, replacing, wear over time...

I was wondering who had extensive experience with Peltier/Thermoelectric coolers, specifically for food/drink refrigeration though for high performance computing it's still relevant.

I wonder what is the lifetime of these things, do they tend to last forever? When they do degrade, how does it degrade?

If you can replace the Peltier element, is it worth to replace with a newer unit, will newer units tend to work better than old ones? Does upgrading do any good, or still stuck with the hot/cold max gradient?

I have a peltier based dehumidifyer and it seems that every 2 years I have to replace the pletier unit as they do seem to ware and not preform as well, I could replace the whole dehumidifier but you can buy peltiers for cheap on ebay just get the amps and voltage correct and you should be good.

[eccerr0r]

Re: Peltier coolers, replacing, wear over time...

Weird, one would think the Peltier element, as it is a semiconductor/solid state, it should have an extensive lifetime. Is the dehumidifier somehow getting wet perhaps and that's why it's killing itself?

How 'bad' is it when you have to replace it?

[ReeceyBurger123]

Re: Peltier coolers, replacing, wear over time...

Weird, one would think the Peltier element, as it is a semiconductor/solid state, it should have an extensive lifetime. Is the dehumidifier somehow getting wet perhaps and that's why it's killing itself?

How 'bad' is it when you have to replace it?

The cold side gets wet as thats where the moister in the air gets condensated, I know when it has failed because it doesn't chill or heat well it gets a little warm but nothing els, I do have a peltier mini fridge that I havnt had to change the unit in but that doesn't get used nearly as much as the dehumidiyfer I have that one for 12hours a day from september to may.

[R_J]

Re: Peltier coolers, replacing, wear over time...

I found this http://www.top-cool.eu/top-cool-tech...me-expectation And this https://thermal.ferrotec.com/technol...c/thermalRef10