Author Topic: Heater Distribution Box Foam Strips  (Read 3763 times)

ncsurfer

  • Inactive
  • Senior
  • ***
  • USA, NC, Raleigh
  • Posts: 190
  • In good company!
    • Sandhills Motoring Festival, Pinehurst, NC
Heater Distribution Box Foam Strips
« on: January 27, 2015, 00:03:48 »
I have searched the Technical Manual as well as post on the heater, but I haven't found a source for the foam insulation that is used on the heater box. I am sure all of the boxes are in the same shape by now. Can someone tell me where to buy the form strips or cut-outs?
Thanks, ncsurfer
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck

awolff280sl

  • Full Member
  • Gold
  • *****
  • USA, FL, Sarasota
  • Posts: 610
Re: Heater Distribution Box Foam Strips
« Reply #1 on: January 27, 2015, 01:39:17 »
For the air distribution box I used door/window insulation from Ace Hardware. They come in various widths, thicknesses, and comprehensibility. I think you will be able to insulate better than original.
Andy   Sarasota, FL
'69 280SL 4speed
'06 Mitsubishi Evo

RonB

  • Inactive
  • Senior
  • ***
  • USA, MN, Cottage Grove
  • Posts: 172
Re: Heater Distribution Box Foam Strips
« Reply #2 on: January 28, 2015, 01:21:43 »
I found mine at JoAnn Fabric. Used head liner  material. Was able cut it in the shape 2 seals.

Worked rather well.
Previously FULL Member twice with over 500 post

71 280SL - SOLD on BAT
97 E420      SOLD
85 300D      SOLD
85 R107 380SL
07 Volvo S60

rwh

  • Associate Member
  • Junior Level
  • *
  • USA, CA, San Mateo
  • Posts: 46
Re: Heater Distribution Box Foam Strips
« Reply #3 on: January 29, 2015, 00:10:40 »
Do a search in this forum for "heater core insulation."  There is a reference to the material you need and it can be sourced from McMaster.

Jonny B

  • Pagoda SL Board
  • Platinum
  • ******
  • USA, CA, San Marcos
  • Posts: 4198
Re: Heater Distribution Box Foam Strips
« Reply #4 on: January 29, 2015, 03:14:27 »
That is what my friend and I used for the heater core replacement project. I am not sure the exact part number, but it was the thinnest foam that McMaster had. It was a bit thick but compressed nicely and posed no real issues when we did the install.

Next up are the air box and defroster flutes. Fan, side covers and core are back in place.
Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor

ncsurfer

  • Inactive
  • Senior
  • ***
  • USA, NC, Raleigh
  • Posts: 190
  • In good company!
    • Sandhills Motoring Festival, Pinehurst, NC
Re: Heater Distribution Box Foam Strips
« Reply #5 on: January 31, 2015, 01:59:26 »
Thanks everyone. I am still experimenting. Will post later with what I found with some pics....
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck