Napoleon Oakville G3 GDI3N-1 Direct Vent Gas Insert (Millivolt Ignition)

GDI3N-1 Overview

The Napoleon GDI3N-1 is the millivolt-ignition variant of the Oakville G3 series gas insert. It uses a standing-pilot millivolt valve system that runs without household electrical power, making it the right choice for installations where reliable operation during power outages (without depending on a battery backup) is the priority. Output range is the same 24,500 to 40,000 BTU as the electronic version, with the same "H" style burner and split oak log set.

This base millivolt configuration does not include a factory blower kit. Add the standard or premium blower as a separate accessory if heat circulation is needed. Decorative brick or porcelain panels and a faceplate / backerplate combination are required for operation; configure them below.

Key Features

• Direct-vent gas fireplace insert with millivolt (standing pilot) ignition
• 24,500 to 40,000 BTU output
• Operates without household electrical power on the gas valve
• "H" style high-performance burner
• Heat-radiating ceramic glass
• Premium safety screen included
• Split oak log set included
• Stainless steel flex connector included
• Vent kits available up to 45 ft
• Optional blower kits available separately

Specifications

Warranty

This Napoleon insert is covered by the President's Limited Lifetime Warranty. Coverage applies to the original purchaser at the original installation address and is subject to the terms set out in Napoleon's warranty document. Key points:

• Lifetime: aluminized steel firebox / heat exchanger / combustion chamber, stainless steel burners, gas valves, glass against thermal breakage
• 10 years (parts and labor in years 1-2; parts only in years 3-10): electronic components and igniter assemblies
• 1 year: blowers, accessories, paint, plating, gaskets, batteries, remote controls, light bulbs, decorative media (logs, embers, glass beads, brick panels)
• Excluded: damage from improper installation, modifications, abuse, accident, use of non-Napoleon replacement parts, or installation outside Napoleon's specifications
• Warranty is non-transferable and begins at date of purchase

Refer to the official Napoleon warranty document for the full terms, exclusions, and claims process.

Downloads

• Oakville Series product page (manuals and spec sheets)