What are some good materials for retaining heat? When i look up heat tape im only getting results for heat resistant tape, but would picrel retain heat instead?
Link: https://www.homedepot.com/p/Frost-King-2-in-x-15-ft-Foam-and-Foil-Pipe-Wrap-Insulation-Tape-FV15H/100174724
The reason I'm asking is because my 6 year old food dehydrator is on its last leg. It takes a lot longer to dehydrate my veggie chips and my laser thermometer is showing me its not getting as hot as it used to. I know ill have to buy another eventually, but in the meantime I'd like to try and extend the life of it for a bit longer. Alternatively I was wondering if I could just duct tape some foil along the sides of the trays, you think that would refect some heat back into the unit? Like some ghetto kind of insulation
>What are some good materials for retaining heat?
Wisdom is greater when realizing the best insulator is nothingness.
>mfw laozi invented the vacuum flask
Spray Foam
>Spray Foam
>Ayrfoil
Which of these two are better? And are there specific brands which are better or worse?
If that were true, then leaving some empty trays on the unit during a dehydrating cycle would increase the heat, but it instead had the opposite effect(I tried it)
Isn't that for deflecting heat, and not retaining it?
>If that were true
It is. User error doesn't change the laws of physics.
Asbestos
they may have stopped selling this at home depot. didn't have any last time i went. lowes should still have it though.
This stuff is the best. It has different brand names, but it's easy to find
Unfortunately, it's impossible to resist popping it.
air the best insulator
pretty cheap too
MLI: a sandwich of space blankets and polyethylene mesh (like tulle) in alternating layers. More layers more insulation, with the practical limit being around 100 layers (for space applications, don't know here in the atmosphere). It's the material used for spacecraft thermal management, and is also used for insulating cryogenic equipment.