Will this work at -40 degrees?
744128
I never tried it... I'm pretty sure it would work but at that temp the pressure would be reduced.
946597
No idea. However, similar electronic devices I specify are rated to zero degrees C. It's inexpensive, simple, and I wouldn't hesitate to use it at low temps.
2013786
I don't know about 20 below but so far it's worked fine between 10 and 20 degrees
1722761
I just checked the thermostat and it only goes down to 45 degrees. If you are trying to use this for freeze protection, you might look into a space heater with a built-in digital thermostat.
2206610
Nothing, what should happen? The reason you shouldn't use it above 32 degrees is you could overheat the the element or the battery. I don't use it as a battery warmer. It operates at temperatures well over 32 degrees but you have to have enough of a heat sink to dissipate the heat or turn it off and on.
2131141
Since they do not use degrees as a measurement on the dial you can only set for low which in most of these heaters is around 50 degrees. They will vary between them and the manufacturers will not guarantee any setting. They just expect you to find an adequate setting for your needs. The difference in operation time from 40 to 50 degrees is negligible in my estimation so just using the lowest setting no matter the temp should be adequate for most situations. Hope this helps.
418148
Maximum cooling of a thermoelectric device is 40 degrees F, so you should be fine.
1923121
I have used it below 50 and it was fine - below 30 would be freezing - so no for that
864040
I believe so, it says in the manual to what degrees it actually works within and I believe unless it's under 20 degrees Fahrenheit it should be fine. Might want to double check online to find the actual manual to confirm however.
13896
According to the Troubleshooting section of the instruction manual, the unit will not operate satisfactorily if the temperature is below 41 F. I would imagine that all higher temps are okay unless the unit overheats in extreme temperatures, but that was not mentioned. I hope this helps. Rx
355832
Not sure and there's nothing in the manual addressing temperature ranges for use. My guess, since this unit operates from a battery, it may not perform as well in very cold temperatures. I would also be concerned about frost jamming the mechanism. There's a technical support number you can call, 800-222-1055. Good luck.
150092
I think it could, but you have to make sure it is packed around it pretty good. I know it will not work with under 32 degree temperatures...
842224
No, because it's range is from -40 to +302 degrees. I have checked it in ice water and boiling water and it is very accurate.
382446
I don't think it gets past 400 degrees. I bent the element to fit a brinkmann electric grill and with a little modification it works for me.
2057577
Probably not, it is a heat pump and unless you live where the temps never go below 40 degrees this would be a supplemental source at best.
787782
It works great on my weber kettle in the warmer climates starting around 50 f. The weber is not insulated enough for cold temps.
1175608
Not really. It will cool things to approx. 30º lower than the surrounding temp. So in theory, if the temp is 62º or lower, it should. However, I have not tested this myself.