Mendota-D Series Insert Gas Fireplace

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Choose from 2 insert models: The D-40 gas fireplace insert is among the largest inserts on the market with 40,000—26,400 BTUH, while the compact D-30 ranges 30,000—19,900 BTUH.

  • Installs quickly and easily into existing masonry or installed factory built fireplaces

  • Romantic fireplace insert is also a certified ANSI/AGA high efficiency wall furnace

  • Flames and heat are adjustable to suit your mood and the weather

  • Direct vent design uses 100% outside air for combustion to preserve indoor air quality

  • Easily customized with a choice of fronts, doors and overlays




Two D Series Models Available

Mendota® gas fireplace inserts are available in two sizes, the D-40 and D-30. When combined with surrounds in several shapes and sizes, we can provide a gas insert to fit virtually any existing fireplace installation. Your Authorized Mendota Dealer has the knowledge and experience to help select the right sized fireplace for your needs.


The D-40 gas fireplace insert is one of the largest inserts on the market. It's designed to fit easily into large, traditional fireplaces. The D-40 offers infinite flame/heat adjustment from 40,000 to 6,500 BTUH. It has the warmth and magical beauty of a wood fire plus the important added advantages of operating with clean, convenient gas and providing the heat and high efficiencies of a certified ANSI/AGA wall furnace. 

D-40 Specs


The compact, yet powerful D-30 gas fireplace insert features a picturesque, award-winning log fire with lots of clean, efficient heat in a relatively small fireplace. With infinite flame and heat adjustments from 30,000 to 19,900 BTUH, the D-30 is designed for the owner who wants the warmth and beauty of a log fire without all the bother, mess and pollution of a woodburning fireplace. 

D-30 Specs