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Napoleon Ascent 42″ Traditional Direct Vent Gas Fireplace

Item #: B42NTRE

SKU:

Price range: $3,039.00 through $3,518.00

The Napoleon Ascent 42" is a 42-1/2"-wide built-in direct vent gas fireplace with a traditional look: a split oak PHAZER log set with glowing embers is included, along with the safety barrie...

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Required venting: Napoleon 4" x 7" direct-vent flex venting

This fireplace is listed only for Napoleon 4" inner / 7" outer flexible direct venting (GD-220 / GD-330 flex kits with a GD-222 wall terminal, ST47U Silhouette terminal or GD-110 / GD-111 / GD-112 roof terminal kit, plus firestops and Mill-Pac sealant). Do not substitute generic pipe - mixing systems voids the listing and the warranty. Maximum run lengths, elbow counts and termination clearances are in the venting section of the installation manual on this page.

Not sure which pieces you need? Call (540) 212-9374 and we'll put together your vent list from your measurements.

Optional add-ons

21 factory add-ons fit this model

Add any of these in one click — they ship together with your unit.

Heat Management 1

Universal Heat Management for Napoleon Gas Fireplaces
Part # UHMF
$289.00
+ Add

Venting Components 20

External Wall Venting Package for Ascent Series | 4" x 7" Direct Vent Flex Venting
Part # FTV47
$419.00
+ Add
$52.00
+ Add
Vertical Venting Package | 4" x 7" Direct Vent Flex Venting
Part # GD-330+GD-113
$568.00
+ Add
Call a specialist: (540) 212-9374Free fit check before you order · we confirm venting, size and parts · Mon–Fri 9–5 ET
Free shipping · ships direct from the manufacturer · typically delivered curbside in 5–17 business days. We email you the lead time for your item within one business day of ordering.
Not sure this is the right part? Ask a fireplace specialist.Call (540) 212-9374, Mon–Fri 9 AM–5 PM ET. Our hearth product specialists will confirm the model, venting and parts match before you order. Everything ships direct from the manufacturer; installation is by your own licensed local installer.
Free shipping on most orders over $99 · Authorized dealer · Manufacturer warranty included

Returns may be subject to a 20% restocking fee. Shipping and processing fees are non-refundable.

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Product Description

Napoleon Ascent 42" Traditional Direct Vent Gas Fireplace

The Napoleon Ascent 42" is a 42-1/2"-wide built-in direct vent gas fireplace with a traditional look: a split oak PHAZER log set with glowing embers is included, along with the safety barrier screen and, on electronic-ignition models, a battery back-up for the control, at 22,000 BTU/hr on natural gas or propane with electronic or millivolt (standing pilot) ignition — from $3,039. It vents top or rear on 4" / 7" pipe, frames into a 42-1/2" wide by 18-9/16" deep opening, and carries Napoleon's President's Lifetime Limited Warranty.

Choose the 42" if you want a log fire in a living room: its framed opening is just 18-9/16" deep, it is approved for bedrooms and bathrooms and certified for mobile homes, and can be dressed up with porcelain or brick interior panels, decorative fronts and finishing trims.

It is not right for you if you want a contemporary linear flame. The Ascent is a classic log fire you can dress up with MIRRO-FLAME porcelain panels, decorative fronts and finishing trims.

Specifications

The framed opening is 42-1/2" wide, 35" high and 18-9/16" deep; the fireplace itself measures 42" wide, 34-5/8" high and 18-5/16" deep, with a 37-11/16" by 23-11/16" viewing area. The enclosure needs at least 50-1/2" of height for a top-vent installation or 41-5/8" for rear venting. The face is finished in non-combustible material that may stand out up to 4" from the door. Mantel clearances depend on the mantel's depth and are charted on page 51 of the installation manual. The vent pipe needs 3" above and 1" at the sides of horizontal runs and 1" around vertical runs, and the fireplace takes a 1/2" gas line with a flex connector (3/8" without one).

How the Ascent 42" compares to the other Ascent sizes

All four Ascent sizes share the split oak PHAZER log set, the safety barrier and the 4" / 7" top or rear vent, with a battery back-up on the electronic control. The 42" runs 22,000 BTU/hr in a 42-1/2" wide, 18-9/16" deep framed opening, from $3,039; the 46" has the same rating in a 46-1/2" opening, from $3,149, while the 30" (15,000 BTU/hr) and 36" (18,000 BTU/hr) are from $2,729 and from $2,939.

Features

  • Split oak PHAZER log set with glowing and charcoal embers included, on a pan-style burner
  • Clean-face, tempered heat-resistant glass with the safety barrier screen included
  • Electronic pilot-on-demand ignition or millivolt standing pilot that needs no electricity — choose above
  • Battery back-up keeps the electronic control working through a power outage
  • Optional MIRRO-FLAME porcelain or two Westminster brick interior panel styles
  • Vents top or rear on 4" / 7" pipe, through a wall or the roof

Answers to common questions

What venting does the Ascent 42" need?

It is a direct vent fireplace on a 4" exhaust / 7" air-intake pipe that leaves the top or the rear of the unit, run out through a wall or up through the roof: up to 20 ft horizontally and up to 40 ft vertically. Use one maker's components throughout and do not mix rigid and flexible pipe. The vent run and termination are ordered separately and sized to your installation, and the outside terminal clearances are listed on page 14 of the installation manual.

What’s included, what’s required, and what’s optional?
  • Included in the box: Split oak PHAZER log set with glowing embers and charcoal embers — the Ascent is sold with its log set; Safety barrier screen and tempered glass door; Gas valve and pilot ignition — electronic pilot-on-demand or millivolt standing pilot, per the model; Battery holder for the electronic control's back-up, on electronic-ignition models (4 AA batteries not supplied); Interior panels in matte black, included as standard — the decorative panel kits are an optional upgrade.
  • Required to complete the installation, purchased separately: Venting - 4" / 7" direct vent pipe and a wall or roof termination sized for your run (see pg 10 in the installation manual); Electrical - a 115 V connection for an electronic model's transformer (millivolt models need none); Gas Line - a gas supply to the fireplace's manual shut-off valve - 1/2" if the fireplace is fitted with a flex connector, 3/8" without one.
  • Optional: Interior panels, a vertical or external wall venting package, the Hot Air Distribution Kit, a power vent adaptor kit, the AUB blower kit, decorative fronts, finishing trims and a remote control — the fireplace operates fully without any of them.
Will it heat my room?

No — the Ascent 42" is certified as a decorative gas appliance, not a source of heat. It is rated 22,000 BTU/hr input, and the optional AUB blower kit adds a variable-speed, thermostatically controlled blower; the optional Hot Air Distribution Kit can move warm air to another room through flexible ducting.

Where can it be installed?

Indoors, including bedrooms, bathrooms and bed-sitting rooms, and it is approved for mobile and manufactured homes where local codes allow (fastened in place). It is rated to 4,500 ft, with the input reduced above that. Keep furniture and other objects at least 48" from the front, and do not run it below freezing. For a TV or other electronics above it, see page 52 of the installation manual.

What gas and electrical connections does it need?

A natural gas or propane line to the fireplace's manual shut-off valve (1/2" if it is fitted with a flex connector, 3/8" without one) — natural gas at 4.5" to 7" w.c. inlet pressure, propane at 11" to 13" w.c.. An electronic model takes a 115 V supply through its transformer, with a 4 AA battery back-up for outages; a millivolt model needs no external electricity. Natural gas and propane are separate factory models, and a certified Napoleon kit converts between them.

Does buying from The Torch Guys affect my Napoleon warranty?

No. The firebox, burner, PHAZER logs and embers and the ceramic glass (against heat breakage) are covered for as long as you own the fireplace — parts free for the first 10 years, then at half of retail; blowers, valves, remotes and other electrical parts and the labour are covered for the first year. Coverage starts on the installation date.

Specifications

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FAQs

Q: Do You Ship to Me?

A: We ship throughout the continental United States with free shipping on orders over $99 (flat rate $9.99 under $99). For Alaska, Hawaii, and U.S. territories, please contact us for a custom shipping quote, which we'll provide within 1-2 business days. Orders to these locations are not processed until shipping costs are confirmed and approved. We do not currently offer international shipping outside of the United States and its territories.

Q: When Will My Order Ship?

A: Orders are processed within 1–3 business days, and delivery after shipment takes 5–14 business days depending on your location. Custom-made and made-to-order products require 2-3 weeks for production before shipment. Special order items typically take 1-2 weeks. You'll receive tracking information once your order ships. For specific timing on your order, please contact us.

Q: What Payment Methods Do You Accept?

A: We accept all major credit and debit cards (Visa, MasterCard, American Express, Discover), Apple Pay, Google Pay, and Link by Stripe for one-click checkout.

Q: Can I Cancel or Modify My Order?

A: For ready-to-ship items, contact us immediately if you need to cancel or modify. We'll do our best to accommodate if the order hasn't shipped yet. For custom-made, made-to-order, and special order items, these are final sale and cannot be canceled or modified once production begins or the order is submitted to the manufacturer. Please double-check your order details before completing your purchase.

Q: Why Choose First Response Fireplace Products?

A: We bring years of specialized expertise to the fireplace industry. When you choose us, you're getting the knowledge and experience that comes from being dedicated fireplace industry experts.

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