Duravent 4" x 6-5/8" DirectVent Pro Masonry Chimney Conversion Kit | 46DVA-KCT
Images & size shown are for reference only: colors may vary by screen, lighting, & natural material variation. See description for dimensions & finish options or call us to request a sample if an exact match is needed.
Duravent 4" x 6-5/8" DirectVent Pro Masonry Chimney Conversion Kit | 46DVA-KCT is backordered and will ship as soon as it is back in stock.
Choose with help from our Maspeth showroom. Read customer reviews on Google.
Pickup available at Maspeth, NY Showroom
Usually ready in 2-4 days
- Northeast shipping. Eligible orders over $999 ship free within our 11-state area; other eligible orders have a flat rate at checkout. Product exclusions apply. Shipping details.
- Factory-authorized Duravent dealer. You keep the full manufacturer warranty.
- 30-day returns, no restocking fee.
- Professional installation available across NYC, Long Island, Westchester, northern NJ and Greenwich/Stamford, CT.
Maspeth, NY 11378
- Monday–Friday
- 9:00 AM–5:00 PM
- Saturday
- 10:00 AM–3:00 PM
- Sunday
- Closed
Call ahead to confirm the model you want to see and pickup readiness.
Shipping & Delivery Area
Shipping & Delivery Area
- Online shipping is limited to Maine, Vermont, New York, New Hampshire, Massachusetts, Connecticut, Pennsylvania, New Jersey, Maryland, Delaware and Rhode Island.
- Eligible orders over $999 receive free standard shipping; eligible orders of $999 or less have a flat rate shown at checkout.
- Our own trucks deliver eligible local orders up to 120 miles. e-NRG fuel, white-glove delivery and assembly have separate eligibility, distance limits and charges.
- For other states, or when no delivery option appears, call 718-326-4328 for a quote before ordering.
- Read the shipping policy for details.
Assembly & Installation
Assembly & Installation
Our company installs in the following areas: Manhattan, Queens, Brooklyn, Nassau, Suffolk, Staten Island, Bronx, & Westchester NY. Hudson, Union, Essex, & Bergen NJ. Greenwich & Stamford, CT. Check out our portfolio of projects we built!
WE OFFER INSTALLATION FOR THE PRODUCTS WE SELL BELOW
- Outdoor Kitchens
- Outdoor Fireplaces/Firepits
- Outdoor Pizza Ovens
- Gas Fireplaces
- Gas Inserts
- Gas Log Sets
- Fireplace Doors
- Fireplace Mantels
- Electric Fireplaces
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Call for a free quote 718-326-4328
Warranty
Warranty
Manufacturer's warranty their products only if they are purchased from an authorized retailer like us. If an issue occurs and the item was purchased from a 3rd party website i.e. Amazon, your claim may be denied. What this means for you as a customer? As a factory authorized & trained dealer for every brand on our website, you will maintain full manufacturer's warranty. Please click on the manufacturer's manual in the description for full warranty coverage information.
Returns
Returns
- No-Restock Fees
- 30-Day Return Policy
- The NYC Fireplaces Team wants you to love what it is that you've ordered! If for some reason you have an issue with your product, we offer a '30-Day Return Policy'.
- We allow returns on all new, unused, unassembled, and "resalable" items in their original packaging within 30 days of the delivery date for a refund (minus the original shipping costs, and the shipping costs you incur shipping the product back). Naturally, if your return is because of our error, you are not responsible for any shipping costs.
Duravent 4" x 6-5/8" DirectVent Pro Masonry Chimney Conversion Kit | 46DVA-KCT is backordered and will ship as soon as it is back in stock.
Description
Description
The Duravent 46DVA-KCT masonry chimney conversion kit lets a 4 in x 6-5/8 in direct vent gas stove use an existing masonry chimney, routing the exhaust and intake air through the side of the chimney. It includes a cap adapter and an 18 x 18 in flashing.
Features
- Uses an existing masonry chimney for a direct vent gas stove
- Exhaust and intake routed through the side of the chimney
- Cap adapter and 18 x 18 in flashing included
Key Specifications
| Model / SKU | Duravent 46DVA-KCT |
| Fits | 4 in x 6-5/8 in direct vent gas stoves venting through an existing masonry chimney |
| Stock number | 810001275 |
| Size | 4 in x 6-5/8 in |
| Includes | Cap adapter and 18 x 18 in flashing |
| Flex | 4 in aluminum flex, sold separately |
| Required or optional | Required for this masonry chimney conversion method |
| UPC | 662492587041 |
What Is Included and What You Will Need
- Duravent 46DVA-KCT: cap adapter and 18 x 18 in flashing
- You will need: a DirectVent Pro termination cap and 4 in aluminum flex
Optional Accessories
- Duravent 46DVA-KMC Masonry Chimney Conversion Kit
- Duravent 46DVA-VCH high-wind vertical termination cap
- Duravent 46DVA-VC low-profile vertical termination cap, aluminum
Installation Notes
Duravent uses 4 in flex with its conversion kits. The 46DVA-KMC version adds a round ceiling support/wall thimble cover and a retro connector.
Planning a fireplace project or need help matching parts? Book a design consultation.
Documentation
Frequently Asked Questions
Is a cap included?
No. The termination cap and 4 in flex are sold separately.
How is it different from the 46DVA-KMC?
The KMC adds a round ceiling support/wall thimble cover and a retro connector.
Related reading: Gas fireplace insert vs direct vent fireplace, NYC fireplace code guide.
Warranty
Duravent Lifetime Limited Warranty (residential, sold on or after May 29, 2026): professional installs 100% for 15 years, then 50%; other installs 100% for 10 years, 75% to year 15, then 50%. Labor is not covered; proof of purchase is required.
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The appliance
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The complete setup
Ask us to pair the appliance with the correct trim, venting, cover, cart or other model-specific accessories.
The installed project
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These are planning options, not pre-priced bundles. Accessories, delivery and installation are separate unless your written quote includes them.
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Make sure this model fits your project
A few details now can help you avoid ordering the wrong size, fuel type or installation components.
1. Confirm fit
Check finished dimensions, opening or cutout measurements and the manufacturer’s required clearances.
2. Match the fuel and connections
Confirm the exact model’s fuel type, electrical requirements and any venting or ventilation requirements.
3. Complete the setup
Check what is included. Ask us to quote compatible accessories, delivery and installation separately where needed.
See the work. Hear from customers.
Explore completed installations and independent Google reviews to learn about working with NYC Fireplaces & Outdoor Kitchens.
Questions to settle before you order
How do I know which size and configuration to order?
Have your dimensions, photos, fuel or power details and preferred model ready. Contact our showroom before ordering if fit or compatibility is unclear. Follow the manufacturer’s installation instructions.
Does the price include everything I need?
Check the product description and selected configuration for included parts. Venting, trim, surrounds, covers, carts, fuel and installation may be separate. Ask for a complete quote before purchasing.
Can you deliver and install it?
Delivery and installation depend on your address and the product. Review our shipping policy and call for an installation quote. Confirm availability and timing before booking work. Read shipping details. Read return terms.
Product, accessory and installation prices are separate unless the offer explicitly includes them. Compatibility must be confirmed for the exact model.

