Glycol Tubing Size

AnOldUR

I will be replacing the tubing that the glycol runs through for the heating convectors and am trying to confirm the size. It look like it's 7/8" ID heater hose? I'm sure it's buried here in someone's mod post, but I'm not having any luck searching. Thanks!

pthomas745

The hoses are 7/8th EPDM type, or 22MM ID.  The Alde uses the "non reinforced" type hoses, but I didn't look for it very hard.  I used the "2 ply" from here last year.

https://www.amazon.com/Silicone-Reinforced-Temperature-Pressure-Transmission/dp/B0B8JZ2TMC?crid=2UFK77YVRNBS0&dib=eyJ2IjoiMSJ9.JUy-rDZSxDZO85r9nYnI-grE01DvAuEkHZZD5akmjRzVOD61G6A2TYXhm-vXNC681M96AHvCSPl-z_RpJq3PGoiXDUjVGjwCpP359ZNETJaF9o9cAnpv-8eHCl0vw9xg7Y7tQXG_3QNVB3mauxZlq9HxZRjGRMsWZ9wb4s_-drURdny0j86JJhJI_gNQNazw-oLWvkKRRG5rHLOtWDjPjC9WHrx_ah6ywSlAV8MYfYA.Kwf3lI_muHmmBz_ZiRifOgo0SQjRHPgX3elCkaoaBv8&dib_tag=se&keywords=22mm+id+epdm+hose&qid=1734892754&sprefix=22mm+id+epdm+hose,aps,153&sr=8-1&th=1

Alde used to have a web page that was sort of a pain to use, but, it was usable. Now....it has been labeled "Truma" and updated and it is a complete disaster to navigate.

Here is another discussion on the hose sizes in an early stage of the Alde deconstruction for the glycol change.

https://tab-rv.vanillacommunity.com/discussion/10339/alde-hose-size-winter-use-of-t-b