Make the Napoleon Ascent™ 42 Linear Gas Fireplace the ideal finishing touch for your home.
Add sparkling luxury to any room with the included topaz CRYSTALINE™ ember bed or customize the look by adding the included media enhancement kits like the natural and nautical feeling Beach Fire or Shore Fire kits.
The earthy Mineral Rock kit is another colorful option and can be mixed and matched with the other kits to create a truly unique look.
Ascent™ Linear fireplaces create a contemporary and luxurious look wherever they’re installed.
Brand
Napoleon
Product Type
Fireplace
Fireplace Type
Natural Gas
Fireplace Location
Indoor
Fuel Type
Natural Gas
Key Features
Up to 20,000 BTU’s
CRYSTALINE™ Ember Bed Comes with Topaz Crushed Glass
USB Battery Backup System
Optional remote control
Optional blower kit
Optional heat management available to reduce clearances to combustibles
Does the Ascent Linear 42 install without a chimney?
Yes. Direct venting through a side wall or the roof is all it needs — the BL42 brings a wide gas flame to rooms where a chimney was never built.
Is the Ascent Linear 42 usable during power outages?
It is — battery backup on the ignition means the burner lights with no household electricity, keeping heat available in winter storms. The blower simply rejoins when power does.
What does an evening with the Ascent Linear 42 cost in gas?
At the full 20,000 BTU input it burns about 0.20 therms per hour — near 30 cents hourly at average U.S. rates, so a four-hour evening fire typically costs about a dollar.
What size chase does the Ascent Linear 42 need?
Frame a minimum of 42.50 in wide x 39.25 in high x 18.50 in deep; the unit measures 44.50 x 40.50 x 19.50 in overall with a 37.75 x 16.75 in viewing area.
Must the Ascent Linear 42 go on an outside wall?
No — with a vertical vent run to the roof, an interior wall installation is fully supported. The deciding factor is the vent path your installer can route, not the wall itself.
How hot does the Ascent Linear 42’s glass front get?
Very hot — operating gas-fireplace glass exceeds 400°F and cools slowly afterward. Its included safety barrier reduces contact risk, but keep children and pets at a respectful distance.
What warranty ships with the Ascent Linear 42?
Napoleon’s President’s Limited Lifetime Warranty covers the BL42, honored fully because we are an authorized Napoleon dealer.
Shipping / Freight / Return Info
Same-Day / 24 hour shipping
Same-Day/24 hour shipping - If we have the product in stock, we can ship same day if ordered before 12pm Monday - Friday (CST).
Freight Claims Policy
Please follow these very important steps when it comes to Freight Items that are damaged or missing
Open and inspect the order while the delivery driver is present. If delivery driver does not provide sufficient time to do so, please notate the delivery receipt.
By signing the delivery receipt without noting any damage or missing items, you confirm that your order arrived complete and in excellent condition.
Record any damage or missing pieces directly on the delivery receipt.
Do not discard damaged item(s) or any original packaging. For severe damage, write “Refused due to damage” on the delivery receipt and contact us immediately.
Report any damage within two business days, including delivery details and photos showing the issue
Damaged item(s) must be returned within 30 days. Failure to return them will result in a charge to the original payment method.
Return Merchandise Authorization Policy
Please follow these very important steps when Returning Items. Contact our team.
Submit your return request within 30 days of delivery.
You will receive an email within 1-2 business days confirming whether your return request has been approved or denied.
Please also note that a 20% restocking fee may apply to approved returns
If approved, you will receive an itemized Return Authorization, return shipping labels (if requested), and detailed instructions within 1–2 business days
From the date this email is received, you will have 14 days to return the product.
Once our distributor receives and inspects the returned item(s), your refund will be issued within 1–2 weeks
Items returned outside of this process or time frame are not eligible for a refund.