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Napoleon Ascent Linear 42″ Direct Vent Gas Fireplace

Item #: BL42NTE

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Price range: $3,499.00 through $4,392.00

The Napoleon Ascent Linear 42" is a linear direct vent gas fireplace with the Topaz CRYSTALINE glass ember bed included: 20,000 BTU/hr on natural gas or propane, a 42-1/2" wide, 39-3/8"...

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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.

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3 factory add-ons fit this model

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Heat Management 1

Price range: $259.00 through $289.00
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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 Linear 42" Direct Vent Gas Fireplace

The Napoleon Ascent Linear 42" is a linear direct vent gas fireplace with the Topaz CRYSTALINE glass ember bed included: 20,000 BTU/hr on natural gas or propane, a 42-1/2" wide, 39-3/8" high and 18-9/16" deep framed opening, a 4" / 7" top vent and a safety barrier screen. Glass bead, glass ember, rock and log kits change the look, and it carries Napoleon's President's Lifetime Limited Warranty.

Choose the 42" if you want a linear fire you can change over time: the topaz ember bed is standard, and glass beads or glass embers in amber, black, blue, clear, red or topaz, mineral rocks, the Shore Fire kit or a Beach Fire, birch, driftwood or split oak log set go on top. It is approved for bedrooms and bathrooms and certified for mobile homes, so it suits a smaller room as well as a living room.

It is not right for you if you want a traditional log fire. The Ascent Linear is a long linear flame over a topaz ember bed, which you can restyle later with glass, rocks or a log set.

Specifications

The framed opening is 42-1/2" wide, 39-3/8" high and 18-9/16" deep, and the fireplace itself is 42" wide, 38-13/16" high and 18-5/16" deep with a 35" by 14-1/8" viewing area. The face around the opening is finished in non-combustible material such as brick, stone or tile — the cement board for it ships with the fireplace — and that facing may stand out up to 4" from the door. No hearth is required in front of the fireplace. Mantel clearances depend on the mantel's depth and are charted on page 51 of the installation manual, with a reduced chart for installations with the Universal Heat Management system; clearances from the vent and the fireplace to combustible framing are shown on page 47. It takes a 1/2" gas line and a hard-wired 110 V supply.

How the Ascent Linear 42" compares to the other sizes

All Ascent Linear sizes share the topaz ember bed, the safety barrier and pilot-on-demand ignition, while the media and log kits are made for each size and not every kit is offered for every size; the 36", 42" and 46" vent on 4" / 7" pipe and the 56" on 5" / 8". In output, the 36" runs 17,500 BTU/hr on natural gas; the 42" runs 20,000 BTU/hr on natural gas; the 46" runs 24,000 BTU/hr on natural gas; the 56" runs 28,000 BTU/hr on natural gas.

Features

  • Topaz CRYSTALINE glass ember bed included, with glass bead, glass ember, mineral rock, Shore Fire and log kits to layer on top
  • Linear firebox behind 4 mm tempered glass, with the safety barrier screen included
  • Pilot-on-demand electronic ignition with a continuous-pilot mode for cold weather
  • In a power outage it can run from a USB power bank (not included) in place of its USB power supply
  • Optional remotes and the eFIRE Bluetooth controller for on/off, flame height and blower speed from the couch or your phone
  • Optional Universal Heat Management lowers temperatures above the fireplace and reduces mantel clearances

Answers to common questions

What venting does the Ascent Linear 42" need?

It is a direct vent fireplace on a 4" exhaust / 7" air-intake pipe off the top, run out through a wall or up through the roof: up to 20 ft horizontally and up to 40 ft vertically. Use one brand of pipe throughout — Napoleon (Wolf Steel), Metal-Fab, BDM, Simpson Dura-Vent, Selkirk Direct Temp, Olympia Ventis or ICC — and do not mix rigid and flexible pipe. Napoleon's terminations include the GD-222, GD-222R or ST47U wall terminal, GD-110, GD-111 and GD-112 roof kits and the GD-201 periscope. It can vent up an existing masonry chimney through a co-linear liner, and it is certified for a power vent kit. The vent run and termination are ordered separately and sized to your installation (see pg 14 in the installation manual), and the outside terminal clearances are listed on page 19.

What’s included, what’s required, and what’s optional?
  • Included in the box: Topaz CRYSTALINE Glass Ember Bed; Electronic pilot-on-demand ignition with a continuous-pilot mode; Manual flame-height control knob; 4 mm tempered glass door with safety barrier screen; Non-combustible cement board for the facing, stainless steel gas flex connector with shut-off valve and nailing tabs.
  • 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 14 in the installation manual); Electrical - a grounded 110 V supply, hard-wired to the fireplace; Gas Line - a 1/2" gas supply to the fireplace's flex connector and shut-off valve; Non-Combustible Finish - brick, stone, tile or similar facing around the opening (the cement board ships with the fireplace).
  • Optional: A vertical or external wall venting package, heat management (Universal Heat Management or the Hot Air Distribution Kit), MIRRO-FLAME porcelain or Ledgestone panels, a blower kit, a 5/8" finishing trim, a remote control, the eFIRE Bluetooth controller and a wall thermostat — the fireplace operates fully without any of them; Log sets, sold separately.
Do I need a log set or extra media?

The Topaz CRYSTALINE glass ember bed ships with the fireplace and it runs on that alone. Any kit you add sits on the media tray with it: glass beads or glass embers in another color, mineral rocks, the Shore Fire kit or a Beach Fire, birch, driftwood or split oak log set. Glass over the burner is kept to a single layer.

Can I mount a TV above it?

Yes, with planning. Napoleon draws the minimum TV clearances above the Ascent Linear on page 52 of the installation manual for a flush installation with a mantel, a recessed installation and partially recessed installations with a mantel, and crosses out a flush installation without a mantel; the partially recessed layouts are only acceptable with the optional Universal Heat Management kit installed. That kit lowers the temperature above the fireplace and reduces the mantel clearances (page 51), and it goes in while the fireplace is installed, before the gas line. Always stay within your TV maker's own temperature limits.

Where can it be installed?

Indoors, including bedrooms, bathrooms and bed-sitting rooms, and it is certified 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.

What gas and electrical connections does it need?

A 1/2" natural gas or propane line to the fireplace's flex connector and shut-off valve, installed and tested before the wall is finished — natural gas at 4.5" to 7" w.c. inlet pressure, propane at 11" to 13" w.c. Electrically it is hard-wired to a grounded 110 V supply; in a power outage it can run from a USB power bank (not included) in place of its USB power supply. It ships for natural gas, and choosing Propane above adds Napoleon's conversion kit.

Does buying online affect my Napoleon warranty?

No. The combustion chamber, burner, glass (against heat breakage) and the logs, embers and rocks 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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