Emerald Vent-Free Heaters
These unique gas furnaces can deliver warm, money-saving indoor comfort year after year to your home. Variable and multi-speed furnaces can provide enhanced indoor comfort by slowly ramping up to your thermostat setting rather than simply turning on at full speed. This alleviates the 'cold air blow' often associated with single-speed furnaces. Choose from a full line of Emerald gas furnaces that we believe offer the best warranty protection in the heating and cooling industry. To find a gas furnaces that delivers maximum energy efficiency and savings, select a unit with the highest AFUE rating.
- GMVC95/GCVC9
- GMV95/GCV9
- GMH95 & GCH9/95
- GKS9
GMVC95 / GCVC9 Multi-Position, Two-Stage/Variable-Speed Gas Furnace
The GMVC95/GCVC95 Two-Stage, Variable-Speed Gas Furnaces feature a patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system.
Standard Features
- Patented dual-diameter tubular heat exchanger with lifetime Limited Warranty for as long as the original registered homeowner owns their home plus 10-Year Limited Unit Replacement Warranty
- Two-stage gas valve operates with two-stage or single-stage thermostats
- ComfortNet™ Communications System compatible
- Efficient and quiet variable-speed circulator motor gently ramps up or down according to heating or cooling demand
- 120V Silicon Nitride igniter designed for long igniter life
- Furnace control board with self-diagnostics, color-coded low-voltage terminals, and provisions for electronic air cleaner and 120-volt or 24-volt humidifiers
- Low constant fan allows homeowner to activate very slow speed to efficiently circulate air throughout the home. This setting costs as little as a 100-watt light bulb to operate.
- Dual-certified for sealed combustion direct vent (2-pipe) or non-direct vent (1-pipe) applications
- Quiet two-speed induced draft blower
Cabinet Features
- Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
- Foil-vaced insulation lines the heat exchanger
- Easy-to-install top venting is standard; alternate flue/vent located on the right (GMVC95)
- Designed for multi-position installation — GMVC95: upflow, horizontal left or right; GCVC9: downflow, horizontal left or right
- Airtight solid bottom for side return applications and easy-cut tabs for effortless removal in bottom air inlet applications
- Convenient left or right connection for gas and electric service
- Coil and furnace fit flush for most installations
GMV95/GCV9 Multi-Position, Two-Stage/Variable-Speed Gas Furnace
The GMV95/GCV9 Two-Stage, Variable-Speed Gas Furnaces feature a patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system.
Standard Features
- Patented TuffTube™ dual-diameter tubular heat exchanger with Lifetime Limited Warranty for as long as the original registered homeowner owns their home plus 10-Year Limited Unit Replacement Warranty
- Two-stage gas valve operates with two-stage or single-stage thermostats
- Efficient and quiet variable-speed circulator motor gently ramps up or down according to heating or cooling demand
- 110V Silicon Nitride igniter designed for long igniter life
- Furnace control board with self-diagnostics, color-coded low-voltage terminals, and provisions for electronic air cleaner and 120-volt or 24-volt humidifiers
- Low constant fan allows homeowner to activate very low speed to efficiently circulate air throughout the home. This setting costs as little as a 100-watt light bulb to operate.
- Dual-certified for sealed combustion direct vent (2-pipe) or non-direct vent (1-pipe) applications
- Quiet two-speed induced draft blower
Cabinet Features
- Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
- Foil-faced insulation lines the heat exchanger
- Easy-to-install top venting is standard; alternate flue/vent located on the right (GMV95)
- Designed for multi-position installation — GMV95: upflow, horizontal left or right; GCV9: downflow, horizontal left or right
- Airtight solid bottom for side return applications and easy-cut tabs for effortless removal in bottom air inlet applications
- Convenient left or right connection for gas and electric service
- Coil and furnace fit flush for most installations
GMH95 & GCH95/GCH9
The GMH95 & GCH95/GCH9 Dual$aver™ Multi-Speed, Multi-Position furnaces feature a patented aluminized-steel tubuular heat exchanger and durable Silicon Nitride Hot Surface Ignition system.
Standard Features
- Patented dual-diameter tubular heat exchanger with Lifetime Limited Warranty for as long as the original registered homeowner owns their home plus a 10-year Limited Unit Replacement Warranty
- Two-stage gas valve with Dual$aver™ technology that allows installer to activate the two-stage valve with the flip of a dipswitch
- 110V Silicon Nitride igniter designed for long igniter life
- Furnace control board with self-diagnostics for electronic air cleaner and 24-volt humidifiers
- Control board stores the last five diagnostic codes in memory; simply push-button activation outputs the fault history to a flashing red LED
- Low constant fan allows homeowner to activate the low heat speed to efficiently circulate air throughout the home
- Self-adjusting feature automatically adjusts to high or low stage based on outside temperature without an outdoor temperature sensor
- Dual-certified for sealed combustion direct vent (2-pipe) or non-direct vent (1-pipe) applications
- Easy-to-install top venting is standard; alternate flue/vent located on the right (GMH95>
Cabinet Features
- Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
- Foil-faced insulation lines the heat exchanger
- Designed for multi-position installation — GMH95: upflow, horizontal left or right; GCH95/GCH9: downflow, horizontal left or right
- Airtight solid bottom for side-return applications and easy-cut tabs for effortless removal in bottom air inlet applications
- Convenient left/right connection for gas/electric service
- Coil and furnace fit flush for most installations
GKS9 Series Single-Stage, Multi-Speed Gas Furnace
The GKS9 Single-Stage, Multi-Speed Upflow Gas Furnace features a patented aluminized-steel tubular heat exchanger and robust Hot Surface Ignition system. This furnace is run-tested for heating or combination heating/cooling applications. With a corrosion-resistant, painted steel cabinet, this unit can be installed in a variety of locations.
Standard Features
- Patented TuffTube™ dual-diameter tubular heat exchanger
- Single-stage combincation redundant gas valve
- Hot surface igniter and patented adaptive learning control for long igniter life
- Quiet, four-speed direct-drive circulator blower motor
- Furnace control board with self-diagnostics and low-voltage terminal block
- Dual-certified for sealed combusion direct vent (2-pipe) or non-direct vent (1-pipe) applications
- Quiet, single-speed induced draft blower
Cabinet Features
- Foil-faced insulation lines the heat exchanger
- Designed for upflow installation; can be converted to horizontal left or right with a pressure switch kit (sold separately)
- Easy-to-install top venting is standard
- Airtight solid bottom for side return applications and easy-cut tabs for effortless removal in bottom air inlet applications
- Coil and furnace fit flush for most installations