Furnace Filter

[takepride]

For reasons of extreme embarassment, I've not yet asked this question:

Where can I locate the air filter for the furnace? Or is there one?

The manual says under the bathroom sink, but that's not so. The cavity there is just the electric panel space for wiring.

I figured I would run into it as I've explored every nook and cranny over the last year, but no such luck.

Please rescue my dignity.

Thanks!

[takepride]

For reasons of extreme embarassment, I've not yet asked this question:

Where can I locate the air filter for the furnace? Or is there one?

The manual says under the bathroom sink, but that's not so. The cavity there is just the electric panel space for wiring.

I figured I would run into it as I've explored every nook and cranny over the last year, but no such luck.

Please rescue my dignity.

Thanks!

[dgerstel]

I have never seen one on an Alpine. I added one of my own, on my 02.

[VAGABONDMAN]

My '03 has a filter under the drawers where the washer/dryer would have gone.

[takepride]

Frank:

I have the washer and dryer, but when the heater comes on, it is loud and clear in that closet. Might they have put a filter under the machines? Seems an odd setup. No easy access.

Has anyone seen this or explored under their washer and dryer?

My laundry closet is just aft of the water closet, passenger side, directly over the furnace.

I had the furnace apart yesterday, straightening the squirrel cage fan, which was rubbing its casing, but did not see any filter. Of course I couldn't see up into the plenum, either, without removing the entire unit.

As a side note, the miniature bolts holding the sail switch are not vibration proof and need Lock-tite. They're just really cheap pot-metal.

[Old Rv'er]

Hello,
You are talking about a propane fired furnace.

I don't think I have ever seen one in any trailer I have owned. My MH has Hydro Hot, and there is not an air filter I am aware of for those.

However, with that being said, the air intake for the combustion chamber sticks down out of the coach about two inches. Should I fabricate some type of filter for this intake opening?

I am of the opinion this would restrict incoming air, and cause it to burn rich, which could cause the combustion chamber to overheat and be destroyed. Opinions please.

I do think, it sticks down too far, as it could get knocked about if I was on a dirt road and rocks were being thrown about, etc. I should crawl under it and at least seal around it with some sealant, to reduce any air leakage into that compartment, although I have not checked to see if WRV did that.

[takepride]

Okay, I decided to investigate on my own.

Under the washer is a screen that is the air intake and pulls directly into the furnace via a 12" x 12" hole in the floor.

It looks like a 14" square filter could be put atop the screen or below the floor with the addition of some "L" brackets on three sides of the filter. I just need to make sure there is enough clearance for air to flow over the top of the filter and still clear the bottom of the dryer. Maybe that's why no filter was installed originally, and no accomodation made.

I checked all the vents and found no other filters or places for filters.

[johnwr]

Since I've never seen a furnace filter installed on an RV furnace, I'd suggest you contact the furnace manufacturer before installing a filter to confirm that the blower motor won't be overloaded, or the plenum overheated when the filter gets dirty. If the manufacturer confirms this addition, I'll put one in immediately. Let us know.

[takepride]

It sounds like others have this filter or have added them. If their rig came without the washer dryer stack, they have one.

Also the manual said there is one, but directed me to the wrong place.

My Vectra had one, too.

[Greg from Pittsburgh]

My 2001 36MDS has a furnace filter located directly under the refrigerator. There is a louvered wood cover that snaps off and the filter is attached to the cover.

[Barbaraok]

Quote:

Originally Posted by Greg from Pittsburgh My 2001 36MDS has a furnace filter located directly under the refrigerator. There is a louvered wood cover that snaps off and the filter is attached to the cover.

Same with our 2002 36 MDDS. Dave took it off and cleaned it as best he could. Looks hand made - we haven't figured out what to do for a replacement yet.

Barb

[Greg from Pittsburgh]

I picked up a filter from Home Depot, 10 X 20 X 1. Cost about $4.00