The Ascent™ Linear Premium 42 is a wide, single-sided linear gas fireplace built for modern rooms — a long ribbon of flame behind edge-to-edge glass, sealed direct-vent combustion, and electronic ignition. It installs into a framed wall in a NYC apartment, Long Island home or New Jersey build without a chimney.
Key Features
- Up to 20,000 BTU/h with flame and heat adjustment
- Electronic ignition with battery back-up
- Edge-to-edge ceramic glass with standard safety barrier
- top vent 4" / 7" direct venting — no chimney required
- President's Limited Lifetime Warranty on the firebox and burner
Choosing Your Configuration
Log Kit above is required — the Premium firebox ships without media, so choose the log set or beach-fire kit that completes it. Interior Panels and Finishing Trim are optional — the firebox ships with a painted black interior. MIRRO-FLAME™ reflective porcelain brightens and deepens the firebox; Ledgestone adds a natural stone texture.
A direct vent kit is required to complete this installation and is sold separately — the correct kit depends on whether you terminate through a wall or the roof. Blower kits, heat-management ducting and remote upgrades are optional.
Specifications
| Base Model | BLX42NTE |
| Maximum Output | Up to 20,000 BTU/h |
| Fireplace Width | 42 in |
| Venting | Direct vent, top vent 4" / 7" |
| Ignition | Electronic with battery back-up |
| Fuel | Natural Gas (field-convertible to propane) |
| Installation | Built-in |
| Warranty | President's Limited Lifetime |
What's Included
- Ascent™ Linear direct vent firebox
- Standard safety barrier
- Electronic ignition with battery back-up
- Ceramic glass front
Documentation
Field conversion to propane is possible with a Napoleon conversion kit, sold separately.
Warranty
Backed by Napoleon's President's Limited Lifetime Warranty, covering the combustion chamber and heat exchanger for life against defects in workmanship and materials. Installation by a licensed gas technician is required to maintain coverage.
Specifications
Specifications and manuals
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Shipping & returns
Shipping & delivery
- Delivery options and pricing by ZIP at checkout.
- Gas, electric and wood installation available
- Collect from our showroom at 70-01 Astoria Blvd N, East Elmhurst, NY 11370
Returns
- Call us to arrange a return - we will talk you through the manufacturer's terms for your unit
- Inspect your delivery before signing, and tell us the same day if anything arrived damaged
Questions? (718) 204-1166