Venting Questions for Cat III Power Vented Heater

[nsogiba]

I am planning the installation of my new to me Dayton 4E455 Fuel Trimmer 60,000btu (input), power vented unit heater. It is to be mounted from the finished ceiling of my 2.5 car attached garage, and vented horizontally to an outside wall which is about 5' away.

What is the correct pipe material to use for this power vented application? The power vent has a sticker on it that specifically says not to use double walled B-Vent, but the sticker has been partially ripped off and I can't tell what they spec otherwise. Not having much luck either finding a installation manual/cutsheet due to age of the unit (roughly 1994). The nameplate calls it out as a Category III unit. Would appreciate any input!

IMG_20150228_181843_313 by nogiba, on Flickr

IMG_20150228_181906_721 by nogiba, on Flickr

IMG_20150228_181911_417 by nogiba, on Flickr

 

[Jackfre]

Cat III is a corrosion resistant, non condensing, positive pressure vent material. Z-Flex makes it, Dura vent and I think Selkirk. You may be able to use poly propylene. You cannot use PVC. I would suggest you download the manual and see what the specs are.

 

[CKS1955]

Here is a link to Class III.

http://www.selkirkcorp.com/heatfab/product.aspx?id=7180

Available at Menard's.

Jay

 

[nsogiba]

thanks! looks like Home Depot has the Z-flex. Appreciate it.

 

[thammel]

z-vent is the stuff I bought for the exact same situation. This is stainless steel and has special seals at the joints. It's not cheap, however.

Tom

 

[nsogiba]

I ended up buying all the pieces I needed on Amazon from a vendor called GlobalTowne.