Outside Air Intake Hose

[Arbee]

My Travis Industries stove's outside air kit is featured here for example.

https://rockymountainstove.com/pellet-outside-air-kit-99200136/

I already have the kit but seek a replacement 1.75" Flex Duct. The one that comes with his kit is very bendy and expandable. Does anyone know a good place I might source it from rather than having to spend the money for a brand new kit when I don't need and already have all the other parts to it?

TIA

 

[BigJohnfromCT]

I'd check with a muffler shop. Perhaps they have some flexible metal exhaust tubing. Good luck.

 

[Whitenuckler]

My Travis Industries stove's outside air kit is featured here for example.

https://rockymountainstove.com/pellet-outside-air-kit-99200136/

I already have the kit but seek a replacement 1.75" Flex Duct. The one that comes with his kit is very bendy and expandable. Does anyone know a good place I might source it from rather than having to spend the money for a brand new kit when I don't need and already have all the other parts to it?

TIA

That is very small - I used 3 inch aluminum duct which can be found in big box stores ect.

 

[ARC]

Check your local auto parts store

https://shop.advanceautoparts.com/p...75"+Diameter&selectedFulfillment=store_pickup

https://www.autozone.com/p/surebilt...+1+3/4in+Flex+Exhaust+Repair&redirectUrl=true

 

[Arbee]

That is very small - I used 3 inch aluminum duct which can be found in big box stores ect.

Indeed. It is a small diameter as OAK (outside air kit) hose diameters are concerned.

 

[Whitenuckler]

Indeed. It is a small diameter as OAK (outside air kit) hose diameters are concerned.

If you want to use 3 inch for part of the run you can go look at car exhaust adapters. My Canadian Tire has a rack of about 50 different sizes. I bought one for my Harman, but the 3 inch worked fine with a band strap clamp so I returned it.

 

[Arbee]

I greatly appreciate people responses so far and wish to better qualify what I am looking for.

The 1.75" hose that comes with this kit has the consistency of a clothes dryer hose's "bendyness" and fragileness and expandability, but of course is smaller in diameter. I'd think this hose too fragile for vehicular exterior use, and as might be found at a muffler shop.

I already own some 1.75" metal hose but am unsatisfied with it primarily because of it being less bendy that I wish: I should quality that.

My pellet stove insert, when pushed into the fireplace where it normally resides, has at its rear (the pellet stove that is) a place where such an air intake hose would attach, mere inches behind a now unused ash chute built into my fireplace's back floor (my home is from 1912) in to which I bring a connected pellet stove air intake hose down, into my basement, and into the portion of the kit I referenced in my initial post that interfaces with the outdoors: that hardware itself positioned in place of a section of window pane of a basement window.

I'd like to push the pellet stove insert a tad bit more into the fireplace but I limited by the curvature limits of my existing replacement air intake hose. The one that came with kit was orders of magnitude more pliable, expandable, and probably as a result of these features and its thin wall thickness, more fragile, but like a clothes dryer hose, need not resist much in the way of internal pressure and can be thin.

Thanks again.

 

[Arbee]

If you want to use 3 inch for part of the run you can go look at car exhaust adapters. My Canadian Tire has a rack of about 50 different sizes. I bought one for my Harman, but the 3 inch worked fine with a band strap clamp so I returned it.

Thanks

As per my prior post, one of the things that limits the diameter of hose I can work with is my ability to get it to fit down the ash chute described. I imagine were this limitation not there that I could acquire reducers to allow such a hose to interface with the "male" 1.75" section of pipe that in the back of the stove where one end of the air intake hose attaches, and the "male" 1.75" section of pipe into which the distal end of the hose attaches that forms part of the outside air hardware interface in my basement.

 

[ARC]

Ok what you should look for is Carburetor preheater hose. How long of a piece do you need? Most are 18" or 36" but if you search the web you might be able to find bulk lengths.

https://www.amazon.com/Each-Aluminu...ater+hose&qid=1768588086&s=automotive&sr=1-14

https://www.autozone.com/p/dorman-ac-heater-dash-air-duct-hose-96034/5038

1 3/4 aluminum duct flex hose

 

[Whitenuckler]

Thanks

As per my prior post, one of the things that limits the diameter of hose I can work with is my ability to get it to fit down the ash chute described. I imagine were this limitation not there that I could acquire reducers to allow such a hose to interface with the "male" 1.75" section of pipe that in the back of the stove where one end of the air intake hose attaches, and the "male" 1.75" section of pipe into which the distal end of the hose attaches that forms part of the outside air hardware interface in my basement.

I waslooking at some other types of pipe or hose, like sump pump hose ect. I wonder if you need any pipe inside the ash chute tunnel? If the other side goes to 3 inch and to outside air it won't be able to suck much air from the house. The use your small flex hose behind the stove.
I used 3 inch for my fresh air and also a bathroom vent fan. It is nice and flexible. It is just a spiral wire wrapped with foil

 

[Arbee]

Ok what you should look for is Carburetor preheater hose. How long of a piece do you need? Most are 18" or 36" but if you search the web you might be able to find bulk lengths.

https://www.amazon.com/Each-Aluminu...ater+hose&qid=1768588086&s=automotive&sr=1-14

https://www.autozone.com/p/dorman-ac-heater-dash-air-duct-hose-96034/5038

1 3/4 aluminum duct flex hose

@ARC Thank you so much!

From what I can see from the pictures you are getting "warm," (Ha, little pellet stove humor there.) This looks like the consistency of hose I was seeking. I will research further regarding length.

 

[Arbee]

Ok what you should look for is Carburetor preheater hose. How long of a piece do you need? Most are 18" or 36" but if you search the web you might be able to find bulk lengths.

https://www.amazon.com/Each-Aluminu...ater+hose&qid=1768588086&s=automotive&sr=1-14

https://www.autozone.com/p/dorman-ac-heater-dash-air-duct-hose-96034/5038

1 3/4 aluminum duct flex hose

@ARC:

Despite Travis industries themselves being unable to source (or unwilling to disclose) their vendor for this hose, I would not be the least bit surprised if it is precisely this sku from Dorman Brand, which I bought https://www.ebay.com/itm/204450821569 .

Thanks for pointing me in the right direction!

 

[ARC]

I have installed many stoves using carburetor preheater hose when clearances would not allow for the use of flex exhaust pipe. It is the same as what you get in outside air kit.

The one you bought on ebay is not the standard preheater hose it is a little stiffer but not as stiff as the flex exhaust pipe.

 

[Arbee]

I have installed many stoves using carburetor preheater hose when clearances would not allow for the use of flex exhaust pipe. It is the same as what you get in outside air kit.

The one you bought on ebay is not the standard preheater hose it is a little stiffer but not as stiff as the flex exhaust pipe.

Thanks for using your knowledge of the product to better align my expectations with its attributes.

I think, if it's more flexible that the flex exhaust pipe I have now--I we suspect it is--then it will permit a smaller radius bend in its shape as it rounds the corner from the horizontal air intake port/pipe in the back bottom of my pellet stove, and down the ash door in the fireplace where my pellet stove insert sits, mere inches behind this port in the back of the stove, facilitating my ability to push the stove into the fireplace more than is currently permissible with the current more rigid flex exhaust pipe's requirements for a larger size bend radius here.

 

[tbear853]

Mine has a 2" OD steel thimble on the stove back, a couple inches from the 3" exhaust. When I put it in in 1992, I included a 2" OD round passageway through the wall thimble / plate / whatever... with the exhaust, but outside they go two different directions. That air intake has a suction on it and is cool to the touch as it pulls in cold air. Inside the house, the intake is a close fit on the stove, but not tight so it may use some room air but being a log home, I have spare. My intake has a screen on it outside at entrance, is pointed down (& the exhaust terminating cap is 7 feet above and away from it, a safe distance I'm sure) so wind does not pressurize it. I got a buddy at an exhaust shop to bend me some 2" OD exhaust pipe (is painted black), I use sections of 2" ID radiator hose to connect, might not even be clamped. Silver is exhaust.