Mantis Gas Fireplace
ECOLOGICALLY SENSIBLE
When considering a gas fireplace to heat your home there are lots of choices out there, but only one that is certified for use in the U.S. that exceeds 90% efficiency and looks this good.
The Mantis by Empire Comfort Systems is our number one choice when it comes to ambiant heating. This system has many great features, at the top of that list is that it uses about 35% less fuel compared to any other vented heater or fireplace system per Btu. This makes Mantis the greenest fireplace you can buy.
HUMIDIFY WHILE YOU HEAT - Greater Comfort
The Mantis is the first and only vented fireplace that adds humidity to the dry winter air, making your home feel warmer and more comfortable.
The unit captures condensed water (a by-product of its clean combustion and super-efficient heat exchanger) and evaporates it to introduce humidity to the room air. This water contains fewer contaminants than the drinking water in most homes. An automatic blower in the Mantis gently diffuses the humidified air into the room. The result is a more comfortable home environment.
Because its inexpensive 1 1/2-inch PVC vent pipe can be run inside a conventional 2 x 4 framed wall, the Mantis costs less to install – in materials, time, and labor. The three-speed automatic circulating fan cycles on only after the Mantis reaches operating temperature and continues blowing as long as it senses warm air. You never feel a cool draft – just warm, humidified air. Additionally, the Mantis’ hand-painted ceramic fiber log set complements the flame pattern, and glows when heated to provide exceptional realism.
Download The Complete Mantis Brochure
| Available Models |
Features: |
|
The Mantis comes in two versions. The new flat-front Mantis Fireplace comes in three models with vent kits to allow installation in a wall, in a mantel, or as an insert in an existing wood-burning fireplace. The Mantis Bay Window comes in three models for installation in a mantel, as an insert, or on a pedestal.
Fireplace packages require metal surround available in Matte Black, Copper Metallic, Hammered Pewter, and Stainless Steel. Bay Window Fireplace and Insert packages include a Matte Black surround. Mantis Bay Window may be ordered with Black, Chrome, or Gold window frame.

Mantis Fireplace Insert (shown here with Louverless Surround)

Mantis Bay Window Fireplace Pedestal
Package
|
The First and ONLY Vented Fireplace That:
- Exceeds 90% Efficiency
- Uses PVC Pipe for Low-Cost Venting Installation
- Humidifies as it Heats
- Installs as Fireplace, Insert, or Freestanding Stove
- Installs as a Direct-Vent or Single-Vent System
Save With Mantis
| |
Mantis |
Conventional DV Fireplace |
| Efficiency |
90%* |
60% |
| Gas Input (Btu/H) |
28,000 |
28,000 |
| Heat Output (Btu/H) |
25,200 |
16,800 |
| Exhaust Gas Heat Loss (Btu/H) |
2,800 |
11,200!! |
| Annual Savings |
35% |
0 |
Comparison Chart
Btu/H |
Fireplace
input/Output |
Bay Window
Input/Output |
High (both burners) |
28,000/25,200 |
28,000/25,200 |
Med (back burner) |
15,000/13,500 |
19,000/17,100 |
Low (front burner) |
13,000/11,700 |
9,000/8,100 |
Efficiency: 90+%
Fan: 3-Speed Automatic (cycles on only when heat is available)
Ignition: Hot Surface (eliminates standing pilot)
Humidification: Automatic
Heating: Heats up to 1,600 sq. ft. (actual area will depend on heater position, floorplan and home insulation)
Clearance: Zero Clearance to combustibles
|
If the Mantis is so efficient, why does it not carry an Energy Star rating?
Mantis is so new to the U.S. market, it fits no current Energy Star category, however, it outperforms most Energy Star rated central furnaces
in heat transfer efficiency. (The Mantis does not fit the furnace classification because it does not need “ductwork” to convey the heated air. Ironically, a central furnace’s ductwork contributes to heat loss.) In Australia, however, where this technology was originally developed, the Mantis earns a 5.52 out of 6 on that country’s Star Rating system. No vented zone heating system – U.S. or Australian – outperforms it.


|