Napoleon Ascent 46 Direct Vent Gas Fireplace

FAQ

Does the Napoleon Ascent 46 need a chimney?

No. The Ascent 46 (B46) is a direct vent gas fireplace: a sealed coaxial pipe through a wall or roof handles both exhaust and combustion air, so no masonry chimney or existing flue is required.

Will the Ascent 46 stay usable in a power outage?

Yes — the ignition system’s battery backup lets you light the burner with the electricity out. The included internal blower needs household power, so full heat circulation resumes once service is restored.

How much gas does the Ascent 46 burn per hour?

At its 22,000 BTU maximum it uses about 0.22 therms of natural gas hourly — typically around 30–35 cents per hour at average U.S. rates, and less at reduced flame settings.

What framing does the Ascent 46 require?

Plan a minimum framed opening of 46.50 in wide x 35 in high x 18.56 in deep. The unit itself measures 46 x 34.63 x 18.31 in with a wide 41.69 x 23.69 in viewing area — confirm details against the installation manual before building the chase.

Does the Ascent 46 include a blower?

Yes. An internal heat-circulating blower comes standard, moving the 22,000 BTU output into the room rather than letting warmth pool around the firebox — useful in wider living rooms this 46-inch model suits.

Can you burn wood in the Ascent 46?

No — it is a sealed gas-only appliance. Burning wood, paper, or anything else inside it is dangerous and voids the warranty. The flame presentation comes from the gas burner and included media only.

What warranty applies to the Ascent 46?

Napoleon’s President’s Limited Lifetime Warranty, the brand’s top coverage tier. As an authorized Napoleon dealer, we ship the B46 with that factory warranty fully intact.