Insulation R?

[KennyG]

Obviously I am a newbie with this question. I see a lot of posts that recommend either R-13 or R-19 for insulating the machine.  I have a Vendo 81D and I was planning on using R-30.
 Is that ok to use?

[johnieG]

Sure, if you can get it shoe-horned into it & still get the liner back in , it will be fine, just make sure it's UN-faced insulation, ( no paper on the backside) & while you have it apart, spray some undercoating or truck bed liner on inside of the chassis along the belt line & bottom of the "floor" where the liner sits, this will prevent future rust-outs from condensation or a leaky drain fitting.

[KennyG]

Thanks..Great idea..I did not even think of that.

[SIGNGUY]

the thing to keep in mind however with the higher R value is that that "Value is when the insulation is in it's expanded state, as you compress it it loses some of it's insulating (R) value..

R 19 is about 6 inches thick when in its uncompressed state and you have to compress it to about 3 to fit in between the cabinet walls and liner.. so even though it's 19, I bet the R Value drops to 10-12 or so? not sure howto figure the ratios...

so if your using r 30.. it must be like 12 inches thick uncompressed.. so keep in mind , like stated, you'll have to compress it alot to get the liner in... and then of course losing some R Value.

I think it's overkill and just more work... would stick to 19 or so..

I've tried R11, and that is only 3.5 inches uncompressed and it bunchs too easy so I did not use it...

[KennyG]

Thanks again.. The R-30 was way too thick..I went out and got the R-19..Much better
Thanks for your all the help.