Napoleon Ascent Linear Premium 46: a wide, low fire with hand painted logs
The Napoleon Ascent Linear Premium 46 is a direct vent gas fireplace built into a framed wall. The glass is 39 inches wide and 14 inches tall. Linear means the flame spreads across a wide, low band. Hand painted logs give it a wood fire look. Battery backup lets you light the fire even when the power is out.
It is set up for natural gas. Ask us before you order if your home runs on propane. Direct vent means it needs no chimney. A sealed pipe through the wall or roof carries the exhaust out and brings fresh air in. It puts out up to 24,000 BTU, enough to warm a living room. A remote control and a blower to circulate warm air come with it. On the page you pick the log set: birch, driftwood, or split oak. Optional choices include reflective back panels and glass media, and more on the page. Napoleon backs it with its President’s Limited Lifetime Warranty. Want a wider fire? See the Napoleon Ascent Linear Premium 56 gas fireplace. The Napoleon Ascent Linear Premium 46 ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
FAQ
Will the Ascent Linear Premium 46 work when the power is out?
Yes. Its ignition has battery backup, so the fire lights without household electricity — a real advantage over electric fireplaces during winter outages. The blower rejoins once power returns.
How do you clean the glass on the Ascent Linear Premium 46?
With the unit fully cool, remove the glass front as shown in the manual and use a cleaner made for gas-fireplace ceramic glass — ordinary ammonia products can permanently haze the surface. Once or twice a season is usually plenty.
How much does the Ascent Linear Premium 46 cost per hour to run?
Its 24,000 BTU maximum input equals about 0.24 therms of natural gas hourly — roughly 35–40 cents at average U.S. rates, with lower flame settings costing less.
What opening does the Ascent Linear Premium 46 need?
Frame a minimum of 47.38 in wide x 39.38 in high x 18.96 in deep. The BLX46 itself is 47 x 39 x 18.31 in with a 39 x 14.13 in linear viewing area.
How is a linear fireplace like this different from a traditional one?
Proportions. The Ascent Linear Premium 46 spreads its flame across a wide, low 39-inch band for a modern presentation, where traditional fireboxes like the standard Ascent series use a taller, nearly square window with a classic log look.
Does the Ascent Linear Premium 46 have a damper?
No damper exists or is needed — the sealed direct vent system manages exhaust and intake automatically, and unlike an open chimney, it doesn’t leak heated room air outdoors when the fireplace is off.
What warranty backs the Ascent Linear Premium 46?
Napoleon’s President’s Limited Lifetime Warranty comes standard, and our authorized-dealer status means the factory honors it in full — see the Specifications tab for the model details (BLX46).