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Project # 21-661
Model: Expedition-I
Appliance Description
Model(s): Expedition-I
Appliance Type: Single Burn Rate Wood-Fired Room Heater
Additional Models: This model series is also offered under the Vermont Casting Branding
as the Gifford-CB and Gifford-BM. These models utilize the same basic design with
respect to performance and emissions controls. All models listed are presumed to have
the same emissions performance as the test specimen provided for certification testing.
Firebox Volume: 1.45 ft
3
Air Introduction System: Primary and secondary air enter the appliance through fixed
openings on either side of the bottom of the appliance. The primary air is channeled
towards the front of the firebox and down to an air wash over the loading door, while the
secondary air is channeled up the sides and is orificed into a series of 3 stainless steel
secondary air tubes. Start-up air is activated by the Automatic Combustion Control
(ACC), which is meant to be activated during fuel loading. A gated orifice allows air to
enter the front air channel in the bottom of the firebox, through two orifices directed at the
coal bed. The ACC is controlled by a timer mechanism which slowly closes off the air
supply.
Baffles: The secondary air tubes are covered by a ceramic baffle board, which is insulated
by a ceramic fiber blanket.
Refractory Insulation: The firebox is lined with 1.25" thick firebrick.
Flue Outlet: 6-inch exhaust outlet located on the top of the appliance.
Catalytic Combustor: N/A
Fan: The Expedition-I is equipped with a convection fan attached to the lower front of the
appliance.
Appliance Dimensions
Expedition-I Unit Dimensions
Height
Width
Depth
Firebox Volume
19"
26.5"
16"
1.45 ft
3
Appliance design drawings can be found in Appendix D submitted with the CBI copy of
this report.
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