DuraVent PelletVent Pro Pellet Vent Factory Built Reline Kit-1

DuraVent PelletVent Pro Pellet Vent Factory Built Reline Kit-2

DuraVent PelletVent Pro Pellet Vent Factory Built Reline Kit-3

DuraVent PelletVent Pro Pellet Vent Factory Built Reline Kit-4

DuraVent PelletVent Pro Pellet Vent Factory Built Reline Kit-5

DuraVent PelletVent Pro – Pellet Vent Factory-Built Reline Kit

Name: DuraVent PelletVent Pro - Pellet Vent Factory-Built Reline Kit
Brand: DuraVent
SKU: 3PVP304-20KFB
Availability: InStock

$1,106.97

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SKU: 3PVP304-20KFB Categories: DuraVent, DuraVent PelletVent Pro, DuraVent Residential Brand: DuraVent

DuraVent PelletVent Pro – Pellet Vent Factory-Built Reline Kit

Use to reline an existing factory-built chimney or B vent. Can be used for wood, pellet, and biofuel burning appliances.

Overview PVP PelletVent Pro

All PelletVent Pro® components that come into contact with flue gases are built with an inner wall of corrosion resistant superferritic metal. PelletVent Pro® is engineered with features for a durable, safe and aesthetically pleasing venting system. PelletVent Pro® is a venting system for stoves and inserts that use wood pellets, corn and other biofuels, or oil, as fuel. As a result of Duravent’s cutting-edge manufacturing process and commitment to innovation, PelletVent Pro® is uncompromised in attention to detail and performance. This perfect fit and finish is made possible with a laser-welded inner and outer wall. Select components are available in black.

PelletVent Pro® is now UL listed for 1″ clearance to combustibles in the USA and in Canada. Its double-wall, air-insulated design offers superior performance. Seams are factory-sealed on all elbows, tees, and fittings. Since the introduction of pellet stoves in the 1980’s, Duravent is recognized as the industry leader in venting systems for pellet stoves. Today, approximately 3 of every 4 pellet stoves in the US and Canada are vented with a Duravent pellet system.

Details

SKU: 3PVP304-20KFB | 3PVP316-20KFB

SKU : 4PVP304-35KFB | 4PVP316-35KFB

Applications

PelletVent Pro® is a venting system designed for stoves and inserts that use wood pellets and oil fuel. It is also built to vent biofuel products such as corn, switch grass, cherry pits, soybeans, coffee husks, sunflower hulls, walnut shells and wheat, to name a few. (Rated for continuous use flue temperaftures up to 570°F.)

Materials and Construction

Laser-welded, double-wall pipe with a .012″ inner wall of 444 stainless steel and a .018″ laser-welded galvalume outer wall. Painted black exterior available. Primary metal-to-metal connection seals joint. Encapsulated o-ring provides a secondary seal.

Clearances

1″ clearance to combustibles in the USA and Canada for appliances using corn and other biofuels, wood pellets or oil.

Shrouds

UL Listed with Duravent shroud specifications.

Diameters

3” and 4”

Listings

c-UL-us Listed to UL 641 (MH8381 and MH14420).

ULC Listed to ULC S609, ULC/ORD C441 (CMH1439 and CMH1440).

Instructions

Typical Installation

Refer to our Typical Venting Installation drawings to select the appropriate component parts for your installation.

The inner pipe diameter should match the outlet size of the appliance. For installations that require 4″ vent and the appliance has a 3″ outlet, use an Increaser Adapter 3″-4″.
Check the appliance manufacturer’s installation instructions to confirm which types of vent configurations are permitted (i.e. horizontal, vertical, chimney reline, etc.). Also, check for any venting restrictions such as maximum horizontal run, minimum and maximum vertical rise, maximum offset, etc.
Be fire safe! Maintain the minimum clearances (air-space) between the vent pipe and nearby combustibles, as specified in the appliance manufacturer’s installation instructions. Use proper support and bracing. Follow local building codes and have your venting system inspected.

Installation Key
1	Vertical Cap
2	Storm Collar
3	Flashing
4	Cathedral Ceiling Support Box
5	Straight Length Pipe
6	45° Elbow
7	Appliance Adapter
8	Flex Length
9	90° Elbow
10	Horizontal Cap
11	Wall Thimble
12	Celling Support Firestop Spacer
13	Tee w/Clean-Out Tee Cap
14	Wall Strap
15	Attic Insulation Shield
16	Prairie Termination Cap

Planning Your Installation:

1	Refer to the Typical PelletVent Pro Installations diagram, on the opposite page, to be familiar with some of the standard PelletVent Pro installations and the required component parts.
2	For a horizontal termination, you will need a Wall Thimble and a Horizontal Cap. The cap must be installed with a 6″ clearance to the outside wall (refer to appliance manufacturer’s installation instructions for other clearances).
3	For a vertical termination, you will need a Cathedral Ceiling Support Box or Flat Ceiling Support, Attic Insulation Shield (if passing through an attic), Flashing, Storm Collar, and Vertical Cap.
4	Determine the length of PelletVent Pro pipe required. For a vertical termination, measure the pitch of the roof and select the proper flashing. The required minimum height above the roof is 12″.
5	Pellet stove inserts in masonry fireplaces will require a flex pipe to snake the vent past the smoke shelf. For transition from PelletVent Pro to an existing DuraPlus, DuraPlus HTC, or DuraTech Chimney, a Chimney Adapter is available.
6	For vertical rise of PelletVent Pro on the outside of the house, Wall Straps should be used at 4′ intervals to provide proper support.
7	Important! Check to be sure that the appliance and the venting system are in compliance with all minimum clearance to combustible requirements.

The following design recommendations are a general guideline to assist in the design and selection of venting components for your installation. Always follow Duravent Installation instructions before installing your chimney system (found with the cap or support box).

Size the vent to meet the appliance manufacturer’s specifications.
Avoid long runs and excessive use of elbows. Refer to the appliance manufacturer for minimum rise and maximum run configurations for the venting system.
Use an Appliance Adapter to ensure a proper connection to appliance. Seal adapter to appliance with high temperature sealant.
Use a Single Tee with Clean-Out Tee Cap to facilitate easy cleaning. It is recommended to use a tee off the back of an appliance.
In the United States and Canada, maintain the minimum 1″ clearance (air space) from vent pipe to combustibles. Use proper support and bracing. Follow local building codes and have your venting system inspected. Be fire safe!

Product Resources

Catalogs

PelletVent Pro® Catalog

Bulletins

Brochures

PelletVent Pro® Product Brochure

Sales Sheets

Educational Papers

PelletVent® Venting Biomass Stoves White Paper Educational Guide

Videos

PelletVent Pro® Tee: New Double Spring Button Design Video

https://youtu.be/FBQAwAN_jgY?si=WqIzKKv4XsGrf1fl

PelletVent® Horizontal Installation Video

https://youtu.be/2fflk0QBIZI?si=mtsATrX4d7s8GbHQ

PelletVent® Installation Guide Video

https://youtu.be/_Gph5a_38sc?si=XCJRUsLkdxcsqMjA

304 vs 316 Stainless Steel

304 vs. 316 Stainless Steel — What’s the Difference?

Both 304 and 316 are high-quality stainless steels known for durability, corrosion resistance, and strength. The main difference comes down to one added element:

316 Stainless Steel

316 has 2–3% molybdenum, which dramatically boosts corrosion resistance — especially against:

Saltwater
Chlorides
Harsh outdoor environments
Chemicals
316 is more expensive (usually 15–30% more) because of its enhanced composition

304 Stainless Steel

304 Stainless Steel does not contain molybdenum

Great for indoor and general outdoor use
Can show pitting or corrosion over time near the ocean or when exposed to salts/chlorine
304 is more budget-friendly while still offering excellent durability

Common Uses

316 Stainless Steel

Marine equipment
Cold plunge tubs exposed to chlorine or salt
Coastal installations
Medical and surgical equipment
Chemical environments

304 Stainless Steel

Appliances
Indoor tubs and tanks
Furniture
Mild outdoor environments
Food-grade equipment

FAQ about Molybdenum

Molybdenum is a naturally occurring trace mineral found in soil, plants, and even the human body.
It’s essential for human health in small amounts because it helps enzymes function properly.
In stainless steel, the molybdenum is tightly bound within the metal alloy and does not leach out in any meaningful way.

So when used in 316 stainless steel, molybdenum is:

Not toxic
Not harmful to humans
Not a health concern, even with daily contact (e.g., water bottles, cookware, cold plunge tubs, medical tools)

Shipping / Freight / Return Info

Same-Day / 24 hour shipping

Same-Day/24 hour shipping - If we have the product in stock, we can ship
same day if ordered before 12pm Monday - Friday (CST).

Freight Claims Policy

Please follow these very important steps when it comes to Freight Items that are damaged or missing

Open and inspect the order while the delivery driver is present. If delivery driver does not provide sufficient time to do so, please notate the delivery receipt.

By signing the delivery receipt without noting any damage or missing items, you confirm that your order arrived complete and in excellent condition.

Record any damage or missing pieces directly on the delivery receipt.

Do not discard damaged item(s) or any original packaging. For severe damage, write “Refused due to damage” on the delivery receipt and contact us immediately.

Report any damage within two business days, including delivery details and photos showing the issue

Damaged item(s) must be returned within 30 days. Failure to return them will result in a charge to the original payment method.

Return Merchandise Authorization Policy

Please follow these very important steps when Returning Items. Contact our team.

Submit your return request within 30 days of delivery.

You will receive an email within 1-2 business days confirming whether your return request has been approved or denied.

Please also note that a 20% restocking fee may apply to approved returns

If approved, you will receive an itemized Return Authorization, return shipping labels (if requested), and detailed instructions within 1–2 business days

From the date this email is received, you will have 14 days to return the product.

Once AF Distributors receives and inspects the returned item(s), your refund will be issued within 1–2 weeks
Items returned outside of this process or time frame are not eligible for a refund.