Home Brew Forums

Home Brew Forums (http://www.homebrewtalk.com/forum.php)
-   DIY Projects (http://www.homebrewtalk.com/f51/)
-   -   Coffin Keezer Build, lid insulation question (http://www.homebrewtalk.com/f51/coffin-keezer-build-lid-insulation-question-372357/)

Sweets10v8 12-06-2012 04:28 PM

Coffin Keezer Build, lid insulation question
 
So Im building a keezer out of an 8.8cuft Kenmore black chest freezer. As I am dismantling the lid I see that there is only 1.5" of batting insulation in the entire lid. Which is probably about an R value of 4-5.

Has anyone thought of, or had experience, adding additional 1.5"-2.0" foam board insulation over and around the lid for an addition R7-R10 or so? Id simply sandwich it between the lid and the plywood base of the top of the keezer.

I know I cant add it around the exterior at all because that's how it get rid of heat and requires a 3" gap minimum. But the lid could take more insulation without harming anything.

Thoughts? Experiences??

limulus 12-06-2012 07:48 PM

I had thought about drilling little holes and spraying Great Stuff Foam inside mine. I did that for my two 10gal coolers. But those were hollow and there is some insulation in the freezer lid. In the end I decided not to add any additional insulation to the lid since it is a freezer and it does freeze. That being said, my freezer is still in the box and I'm building my surround.

beaksnbeer 12-06-2012 08:38 PM

I did my 20cf chest freezer that way I added 3/4 foil backed insulation from Lowe's then put FRP board to replace the plastic liner, you can't feel the cool in the top any more. mine only runs for 5-7 minutes every hour now as well.

Sweets10v8 12-07-2012 04:12 AM

Thanks,

I started mocking it up tonight..... :) I just used a spare piece of plywood laying around, this isnt anywhere near finalized.

http://i1295.photobucket.com/albums/...fore_small.jpg

http://i1295.photobucket.com/albums/...ound_small.jpg

http://i1295.photobucket.com/albums/.../top_small.jpg

http://i1295.photobucket.com/albums/...wood_small.jpg

http://i1295.photobucket.com/albums/...iles_small.jpg

Sweets10v8 12-08-2012 06:59 PM

The cool thing is that I got the freezer on sale at sear for $259, with 15% off because of credit card cash back bonuses!!! So $220 for an undamaged, non clearanced, brand new freezer isnt bad.

VegasJ 12-08-2012 07:16 PM

I removed my lid and made one out of a 2x4 frame, rubber/foam weather stripping around the sealing edge of the 2x4, & covered that with plywood + some extra over the 4 edges so it overhung the base frame around the freezer chest.

I filled in the base of this 2x4 frame on the "new" lid with spray in foam, then laid in about 3 layers (2 in some areas) of 3/4" insulating foam board.

Still have the lid in tack in case I need to go back to just having a freezer or need to replace the freezer. If I need to replace the freezer I don't have to modify another lid. I can just swap the 2x4 covered plywood top onto the new freezer bottom and pour!

beaksnbeer 12-08-2012 11:09 PM

I added my foam to the inside, aren't you worried about the flex causing the grout to crack away from the tile?

Sweets10v8 12-09-2012 02:57 AM

I bought granite, it was SOO FREAKING HEAVY, that I took it back. Im going with the function over beauty idea, Not my "dream machine" but I will still have beer on tap, 120" screen, and pool table "coming soon".

limulus 12-09-2012 03:20 AM

Nice start. I've built all of mine except the lid. The coffin is heavy enough with a tile back splash and I'm sticking with tile or epoxied wood for the top.

Sweets10v8 12-10-2012 12:55 AM

Quote:

Originally Posted by VegasJ (Post 4663176)
I removed my lid and made one out of a 2x4 frame, rubber/foam weather stripping around the sealing edge of the 2x4, & covered that with plywood + some extra over the 4 edges so it overhung the base frame around the freezer chest.

How is your seal? I've been trying not to mess with the factory seal at all. Thats one of the reasons I went with a coffin style over a collar.
Quote:

Originally Posted by beaksnbeer (Post 4663689)
I added my foam to the inside, aren't you worried about the flex causing the grout to crack away from the tile?

The tiles I have pictured are actually stick on style vinyl. There was just no way I wanted the lid to weight more than the freezer itself did. All 10 of the vinyl squares I plan on using weigh about 1/2 of a single 12" x 12" piece of granite!


All times are GMT. The time now is 06:39 AM.

Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.