SKU: 14333443883

DuraVent Oval Type B Gas Vent Model BV 4" Round-To-Oval Adapter

Sale price$92.57 Regular price$102.86
Save 10%

Pay in installments of $25.71 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

DuraVent Oval Type B Gas Vent Model BV 4" Round-To-Oval AdapterOur non positional lock system on the Duravent BV Gas Vent is the best lock system on the market today. The incorporation of the DuraTab feature simply improves our lock system by adding flexibility and meeting market needs. The BV line of Duravent round vent pipe and fittings is designed for use on approved gas appliances in residential and light commercial and industrial applications. What's Included (1) Round To Oval Adapter Features The round to

Our non-positional lock system on the Duravent® BV Gas Vent is the best lock system on the market today. The incorporation of the DuraTab® feature simply improves our lock system by adding flexibility and meeting market needs.

The BV line of Duravent round vent pipe and fittings is designed for use on approved gas appliances in residential and light commercial and industrial applications.

What's Included

  • (1) Round-To-Oval Adapter

Features

  • The round-to-oval adapter is used for conversion of vent from round to oval.

Specifications

Item Number 4BVOARO
Series Oval Type B Gas Vent Model BV
Product Type Round-To-Oval Adapter
Inside Wall Aluminum
Outside Wall Galvanized Steel
Size (Diameter) 4"
A 6 7/8”

Technical Dimensions

Warranty

Duravent, Inc. (“Duravent”) provides this limited lifetime warranty for all of its products with the exception of Ventinox® (lifetime), and PolyPro® (ten years). Subject to the limitations set forth below, Duravent warrants that its products will be free from defects in material or manufacturing, if properly installed, maintained and used.

DuraVent, Inc. (“DuraVent”) provides this limited lifetime warranty for all of its products with the exception of Ventinox® (lifetime), and PolyPro® (ten years). Subject to the limitations set forth below, DuraVent warrants that its products will be free from defects in material or manufacturing, if properly installed, maintained and used. DuraVent products are fully warranted if installed only by a professional installer. This Warranty is transferable from the original homeowner to the buyer of the home. This warranty does not cover normal wear and tear, smoke damage or damage caused by chimney fires, acts of God, or any product that was: (1) purchased other than from an authorized DuraVent dealer, retailer or distributor; (2) modified or altered; (3) improperly serviced, inspected or cleaned; or (4) subject to negligence or any use not in accordance with the installation instructions included with the product as determined by DuraVent.

DuraVent provides the following warranties for its products: One Hundred Percent (100%) MSRP 15 years from the date of purchase, and Fifty Percent (50%) thereafter, except for the following limitations on: all Termination Caps and DuraBlack® are warranted at One Hundred Percent (100%) for five years. All warranty obligations of DuraVent shall be limited to repair or replacement of the defective product pursuant to the terms and conditions applicable to each product line. These remedies shall constitute DuraVent’s sole obligation and sole remedy under this warranty. This warranty provides no cash surrender value. The terms and conditions of this warranty may not be modified, altered or waived by any action, inaction or representation, whether oral or in writing, except upon the express, written authority of an executive officer of DuraVent.

Corn, bio-fuels, driftwood or other wood containing salt, preservative-treated lumber, plastic and household trash or garbage, or wood pellets containing such materials must not be burned in the appliance or fireplace. In case of a chimney fire, the chimney must be inspected and approved by a certified Chimney Sweep before reuse. After each annual inspection, maintenance, and cleaning, the certified Chimney Sweep must fill out and date the appropriate section of the warranty card provided with the chimney liner.

LIMITATIONS ON INTERNET SALES: Notwithstanding any other terms or conditions of this Limited Lifetime Warranty, DuraVent provides no warranty for the following specific products if such products are not installed by a qualified professional installer: DuraTech®, DuraTech® DTC, DuraTech® Premium, DuraPlus HTC®, DDW®, DuraChimney® II, PelletVent Pro®, DirectVent Pro®, FasNSeal®, FasNSeal® W2, FasNSeal® Flex, and PolyPro®, and DuraVent’s relining products including DuraLiner®, DuraFlex® (SW, Pro, 316, 304), and Ventinox®. For purposes of this warranty, a trained professional installer is defined as one of the following: licensed contractors with prior chimney installation experience, CSIA Certified Chimney Sweeps, NFI Certified Specialists, or WETT Certified Professionals.

DuraVent must be notified and given the opportunity to inspect defective product prior to replacement under the terms of this limited lifetime warranty. All warranty claims must be submitted with proof of purchase. Labor and installation costs are not covered under this warranty. To obtain warranty service contact: DuraVent Warranty Service, 877 Cotting Ct., Vacaville CA 95688, or call 800-835-4429.

WHERE LAWFUL, DURAVENT DISCLAIMS ALL OTHER WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL DURAVENT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR SPECIAL DAMAGES OR DIRECT OR INDIRECT LOSS OF ANY KIND, INCLUDING BUT NOT LIMITED TO PROPERTY DAMAGE AND PERSONAL INJURY. DURAVENT’S ENTIRE LIABILITY IS LIMITED TO THE PURCHASE PRICE OF THIS PRODUCT. SOME STATES DO NOT ALLOW LIMITATIONS ON IMPLIED WARRANTIES, OR THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE.

Documents & Files

Videos

Frequently Asked Questions

What is DuraVent Type B Gas Vent (Model BV)?

Applications

Duravent’s Type B Gas Vent system. Use with natural gas or liquid propane Category I and draft hood equipped appliances, and appliances tested and listed to use Type B Gas Vent. Applications include: natural gas fireplaces, gas-fired furnaces, boilers, water heaters, and wall or space heating applications.

Materials and Construction

Round Type B Gas Vent 3″ – 8″ and Oval 4″ – 6″: Aluminum .012″ inner wall, galvanized .018″ outer wall, in Canada, the lengths have a galvalume .018″ outer wall. The 3″ – 8″ Round gas vent features DuraLock® and DuraTab® . The Oval gas vent features the button lock.

Round Type B Gas Vent 10″ – 18″: Aluminum .014″ inner wall, galvanized .018″ outer wall. DuraLock® feature for 10″ and larger diameters.

Round Type B Gas Vent 20″ – 30″: aluminum .023″ inner wall, galvanized .018″ outer wall. DuraLock® feature for 10″ and larger diameters.

Clearances

Clearances to combustible materials in single and multi-family dwellings:

  • 1″ Clearance – USA – 3″ to 30″
  • 1″ Clearance – Canada – 3″ to 24″
  • 2″ Clearance – Canada – 26″ to 30″

Annular insulating air space

  • 3″ – 8″ Round Vent: 1/4″ air space
  • 4″ – 6″ Oval Vent: 1/4″ air space
  • 10″ – 30″ Round Vent: 1/2″ air space 

Diameters

  • 3″- 30″ Round Diameter.
  • 4″, 5″ and 6″ Oval (USA only)

Listings

 UL Listed to UL 441 and CAN/ULC-S605 (MH2848 and MH17667).

What is DuraVent Type B Gas Vent (Model BV)'s Typical Installation?

Small Diameter – Vertical Installations

Item Clearance - See Note 1 Max Height Outer Tube Ø Materials Locking Device UL Listing
Type B Vent Round 3″-8″ (USA) 1 inch 100 feet 1/2″ larger than ID Inner – .012″ Aluminum Outer – .018″ Galvanized  DuraLock & DuraTab MH2848
Type B Vent Round 3″-8″ (CAN) 1 inch 100 feet 1/2″ larger than ID Inner – .012″ Aluminum Outer – .018″ Galvalume* DuraLock & DuraTab MH2848
Round 10" to 18" - See note 2 1 inch 100 feet 1″ larger than ID Inner – .014″ Aluminum Outer – .018″ Galvanized DuraLock MH2848
Round 20″ to 30″ (USA) See note 2 1 inch 100 feet 1″ larger than ID Inner – .023″ Aluminum Outer – .018″ Galvanized DuraLock MH2848
Round 20″ to 24″ (CAN) See note 2 1 inch 100 feet 1″ larger than ID Inner – .023″ Aluminum Outer – .018″ Galvanized DuraLock MH2848
Round 26″ to 30″ (CAN) See note 2 2 inch 100 feet 1″ larger than ID Inner – .023″ Aluminum Outer – .018″ Galvanized DuraLock MH2848
Oval Type B Gas Vent 4″ and 5″ 1 inch - See Note 5 See Note 3 4": 2 1/2″ x 7 1/4″ or 5": 3 1/8″ x 10 7/8″ Inner – .012″ Aluminum Outer – .018″ Galvanized DuraLock MH2848
Oval Type B Vent 6″ 1 inch - See Note 5 See Note 3 3 1/4″ x 12″ Inner – .012″ Aluminum Outer – .018″ Galvanized DuraLock MH2848
DuraConnect I Flex 3″ and 4″ 1 inch See Note 4 NA .012″ Aluminum Flexible .018″ Galvalume Fittings DuraLock & DuraTab MH17667
DuraConnect II Flex 3″ to 5″ 1 inch See Note 4 1/4″ larger than ID .006″ 2 Ply Aluminum Flex .018″ Galvalume Fittings DuraLock & DuraTab MH17667

*In Canada, the outer tube material is galvalume for 3″ to 8″ pipe length. All other 3″ to 8″ fittings have a galvanized outer tube.

Notes: Gas Vent Specification Chart

  1. Clearance to combustibles is the air space between vent and combustibles.
  2. For maximum height refer to the appliance manufacturer installation instructions and the National Fuel Gas Code NFPA 54 or the Canadian Fuel Gas Installation Code CSA-149.1-00. For taller applications refer to Duravent Sizing Handbook.
  3. When oval is used on wall furnaces, minimum height required from bottom of furnace to cap is 12′, minimum 16″ stud space.
  4. Limited by sizing tables.
  5. BVO 4″ & 5″ oval can be installed in a 2″ x 4″or a 2″ x 6″ stud wall. BVO 6″ oval can be installed in a 2″ x 6″ stud wall.
What are the DuraVent product lines?

DuraVent offers the following product lines:

DuraTech 5″-8″: All-fuel, double-wall chimney system. UL 103 HT and ULC S604.

DuraTech LDC 10″-24″: All-fuel, double-wall chimney system. UL 103.

DuraTech Canada is a double-wall, all-fuel chimney system for use with wood stoves, wood fireplaces, and other appliances using wood, oil, gas, or coal.

DuraPlus: Triple-wall all-fuel chimney with two layers of insulation.

DuraPlus HTC: Double-wall all-fuel chimney built to Canadian standards.

DuraChimney II: Double-wall air-cooled chimney for pre-fabricated masonry chimneys.

Combustion Air Systems: DuraVent’s exclusive, patent-pending system is designed to bring in outside combustion air directly to your wood or pellet stoves.

DuraBlack: Single-wall stovepipe.

DVL: Double-wall stovepipe.

DuraLiner: Double-wall factory insulated masonry relining system.

DuraFlex: Flexible stainless steel liners.

DuraFlex Aluminum: Flexible aluminum relining for masonry chimney. UL 1777 and ULC S635.

Ventinox: Flexible stainless steel liner.

CVS: Provides Ortal Branded Fireplace Systems and as a Direct Vent for Pellet Stoves.

PelletVent: Multi-fuel vent.

PelletVent Pro: Vents appliances using oil, wood pellets, corn, and other biofuels.

DirectVent Pro: Unitized, co-axial venting system for direct vent gas or propane stoves, heaters, and fireplaces.

Type B Gas Vent: Vents natural gas, liquid propane category I, and draft-hood equipped appliances

FasNSeal: Single, double-wall, flex, and concentric venting for category II, III, and IV appliances.

FasNSeal 80/90: Combined Category I and IV venting for Gas-Burning Appliances.

PolyPro: Single-wall, flex, and concentric venting made of polypropylene for category II and IV condensing appliances that operate up to 248 degrees.

PolyPro Flex: PolyPro double-wall flex lining system. Environmentally safe venting system for high-efficiency appliances, including water heaters, condensing boilers, and warm air furnaces. ULC S636.

DuraSeal: Single-Wall and Double-Wall Special Gas Vent Boiler Adapters.

DuraStack: A modular double-wall, positive pressure chimney for use with boiler breeching and stack, engine exhaust, and grease duct (DIS only)

DuraStack Pro: Models DIS and DAS. Modular Double-Wall Positive Pressure Chimney for Boiler Breeching, Stack, and Engine Exhaust.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 14333443883

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 4
Imperfect characters
Format: Kindle
4.5 stars ⭐ I don't really understand the harsh criticism in some of these reviews (Goodreads). I rarely write reviews myself, but I think this book deserves it. Look, it absolutely has its issues. I wasn't feeling it in the beginning -- the first few chapters were all tell and no show, literally just telling us all this background in a few paragraphs rather than feeding us bits and pieces at a time. The writing significantly improves after a few chapters, though. And I didn't catch any spelling or grammatical typos often found in new, self published books.  After the rough start, I absolutely flew through the rest of the book and couldn't put it down. Seriously stayed up until 2am with it. So I also don't agree with comments calling it boring. Definitely did not bore me. I thought it ticked all the right boxes: romance, fantasy, a magic system, tragedy, fate, character growth.  A lot of the poor reviews I'm seeing are in regards to the FMC's character. Personally, I like flawed characters and think it's more realistic than reading the POV of someone who always makes the right decisions, is always honest, is always selfless, etc. Humans aren't like that. Readers love when male leads are morally grey, but God forbid a woman isn't perfect.  So I like flawed characters and I like a little bit of tragedy, which the author provides. Ends on a cliffhanger, and I can't wait to read the sequel next month. I really want to learn more about Malachi.  All in all, not a bad start from this author. Give it a chance. SOMEWHAT SPOILERY: I LOVE the concept of fated mates that kind of hate each other. Most books with the fated mates trope allow the characters to immediately fall for each other and get together relatively easily. But this is way more interesting ;)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2023
F
Verified Purchase
Flirty Nerdy Reader
Omaha, US
★★★★★ 5
what just happened
Format: Kindle
I’m not gonna lie. This story had me from the beginning. It’s something about a girl running from an obsessive stalker that happens to be set in a fantasy realm. This story had everything you could want in a great plot. I mean intrigue, politics, betrayal, murder, witches, shades, fairies, shifter, etc. My heart grieved for Dahlia and everything she went through and honestly i don’t know who to root for in this story as all the males are morally gray which I love. All have a hint of evil. Book up this book and you won’t be disappointed. Soo ready for the next book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2023
R
Verified Purchase
Real Reviews
Port Orchard, US
★★★★★ 3
Beta readers, please
Format: Kindle
I haven’t written a review in a while but this one motivated me to because it had potential and with some honest beta readers correcting its nonsense, it could have been pretty good. The writing is awkward at times and the world building was slow and one dimensional until around half way through and then it got much better. The main issues are with the characters, dialogue and plot. The FMC swings from stupidly trusting her “ friends” even when she is repeatedly betrayed to hating those who betrayed her to seemingly forgetting she hated them. It’s a whirlwind that reeks of adolescent drama and doesn’t fit the plot the author was trying, I think, to execute. The ridiculous decisions the character makes are so obviously made to move the plot in the direction the author was trying to go and was so basic in plot writing it was at times like reading a teenager’s writing project. It was hard to connect to the main character and hard to like any of the others. The author has potential but it was not met in this book. I will not be reading the next and really had to push through to even finish this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2023
K
Verified Purchase
katbgreen
Lexington, US
★★★★★ 5
Cliffhanger oh my
Format: Kindle
I liked this a lot. Fast paced, some deception, a lil bit of scheming, and not such a happy ending.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 30, 2024
S
Verified Purchase
SSuper!
Grantham, US
★★★★★ 4
Good Read
Format: Kindle
Dahlia, Ryken and Aiden are in quite the lovers triangle. I was very invested in Dahlia’s story and what was going to happen next. I loved that she fought for herself and tried to stand up for what she believed and her friends, rather than just giving in. Even though there were predictable portions of the story, I was still invested enough not to care. I’m curious what will happen in book 2. The spice level is mild, but maybe it will get spicier?? The only reason I gave the story four stars was because the world building in the beginning of the story was a bit confusing. I could’ve used a bit more explanation. Overall - I recommend to anyone who loves a story about lovers triangles & a FMC who struggles with an overwhelming power.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 31, 2024

recommand products