Made in the USA


FAW-40 recessed between standard Wall Studs

FAW-55 and FAW-40 install on Wall

Includes 24-Volt Thermostat

Choose Standing Pilot  or Electronic Intermittent Pilot (saves even more energy)

Counterflow Blower Circulates Warm Air at Floor Level

Multi-Room Heating Capacity with Optional Outlet Kits



Multi-Room Heating Capacity with Optional Outlet Kits

Mounts along Outside Wall - draws outside air for combustion and vents to outdoors

DVC-35 (35,000 Btu) recesses between standard Wall Studs

DV-55 (50,000 Btu) and DVC-35 mount to wall

Includes 24-Volt Wall Thermostat

Choose Standing Pilot (heats without electric power) or 

Electronic Intermittent Pilot (saves even more energy)

Front Panels Remove for Cleaning and Servicing


Counterflow Blower Circulates Warm Air at Floor Level


Multi-Room Heating Capacity with Optional Outlet Kits

Up to 76% A.F.U.E. efficient

GWT-25 (25,000 Btu)
GWT-35 (35,000 Btu)
GWT-50 (50,000 Btu

State-of-the-Art Technology for Higher Fuel Efficiency

Common Size Retrofits Easily

GWT-25/35 Furnace Recesses into Wall or Mounts Flush

Total Comfort for a Fraction of the Cost of Electric Heat

Optional Wall or Built-in Thermostats Require No Electricity



Heat Two Rooms with Dual Wall Unit GWT-50


Optional Blower Available

 The World's Most Efficient and Versatile Fireplace

Traditional Models - With Log Set and Dual Burners – up to 28,000 Btu

Contemporary Models (fireplace & Inserts only)- with one Linear Burner - up to 20,000 Btu

Exceeds 90% Efficiency – uses 35% less fuel

Three-stage heat exchanger 

Super-Clean burning (reduces emission) 

Hot-Surface ignition 

Includes Basic PVC Connections

Vents in any direction - up to 40 feet - using regular 1 1/2-inch PVC Pipe 

Includes 24-Volt Thermostat

Installs as a Direct-Vent System

Humidifies as it Heats


Please buy from a local dealer. Empire will not warranty any Mantis fireplace that is not installed by the selling dealer or that dealer’s direct contract agents.

DV-210 (10,000 Btu) and DV-215 (15,000 Btu)

Slim, compact cabinet mounts on an outside wall.

Quiet operation

Matchless piezo ignition (heats without electricity)

Opt. blower(electricity needed)

Ideal for bedrooms or studies

DV-25 (25,000 Btu) and DV-35 (35,000 Btu)

Console cabinet mounts on an outside wall


Quiet operation


Matchless piezo ignition (heats without electricity)


Opt. blower
(electricity needed)

Ideal for family room

DV-20E (20,000 Btu)
DV-40E (40,000 Btu)
DV-55E (55,000 Btu)

State-of-the-Art Technology Ensures Exceptional Fuel Efficiency

Built-in Electronic Thermostat 

Sealed Combustion Chamber Maintains Indoor Air Quality

Discreet Vent Termination minimizes disruptions to home’s exterior

Filtered Air System

Built-in Blower  

Hot Surface Ignition Ensures Quiet Starts and Saves Gas – Up To $20 Per Month

Mobile Home Certified

RH-25 (25,000 Btu) RH-35 (35,000 Btu)



Includes Thermostat

Heats Without Electricity


Matchless Piezo Ignition




RH-50B, RH-50C (50,000 Btu)

RH-65B, RH-65C (65,000 Btu)


Includes Thermostat

Heats Without Electricity


Matchless Piezo Ignition



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