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Coleman model 7655-856. This older coleman furnace doesn't have any filters in the doors. What kind should I use and do they go in both or just one? I was thinking foam?? Both doors have a few slats in them. That is where they do go, correct? The furnace is accessed from a door on the outside of the mobile home. Thank you very much to whomever can answer this.

Hi,

Foam Furnace Filter # 7660 - 3401

Foam Filter Clips # 7670 - 3451

Both can be seen and ordered from here by paging down :

http://www.aberdeenhomerepair.com/store ... esults.php


Goes behind top door panel.


Thanks,
Robert

Can I actually use some other kind, such as pleated, carbon etc. or would it restrict air supply too much? Maybe one that doesn't have a high number rating? There is a vent on the outside door for air also. These foam filters look as though they wouldn't hold any dirt.

Those are what the furnace manufacturer recommends for your furnace. I would not advise changing without having an hvac tech to test for adequate airflow through any other type.



Thanks,
Robert