General Information
900004-00, 03/2017
Innovative Hearth Products
DRT2000 and DRC2000 Direct-Vent Fireplaces
9
BTU Input
Models
Input Rate (BTU/HR)
Natural Gas Propane Gas
33” Models
12,000 10,000
35” Models 14,000 12,000
40” Models 16,000 15,000
45” Models
20,000 19,000
Table 1 - Input Rate, Gas Valves
Model
Millivolt Electronic
AFUE * P4 ** AFUE * P4 **
33” Models
64 60.4 64 64.8
35” Models 65.5 61 65.5 65
40” Models 65.5 62 65.5 65
45” Models
65 63 65 66
Table 2 - Thermal Effi ciency (%)
* AFUE is a measurement of the US Department of Energy, ** P4 (EnerGuide) is a measurement of the Canadian Offi ce of Energy Effi ciency.
NOTE: Effi ciencies are based on the most commonly used F1797 termination.
Gas Pressure
Fuel Minimum Maximum
Natural Gas 5” WC / (1.25 kPa) 10.5” WC / (2.61 kPa)
Propane 11.0” WC / (2.74 kPa) 13.0” WC / (3.23 kPa)
Table 3 - Inlet Gas Supply Pressure
Fuel Pressure
Natural Gas 3.5” WC / (0.87 kPa)
Propane 10.0” WC / (2.49 kPa)
Table 4 - Manifold Gas Supply Pressure
Test gauge connections are provided on the front of the millivolt and electronic gas control valve (identifi ed IN for the
inlet and OUT for the manifold side). The control valves have a 3/8” (10 mm) NPT thread inlet and outlet side of the
valve (Figures 1 and 2).
Figure 1 - Millivolt Gas Valve
Figure 2 - Electronic Gas Valves
Propane tanks are at pressures that will cause damage to valve components. Verify that the tanks have step down
regulators to reduce the pressure to safe levels.
The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during
any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).
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