Monessen Hearth IDV490NVC User Manual

6 

•  In the USA, the appliance must be derated 4% for every 1,000 ft above 2,000 ft elevations.
•  In Canada, these appliances are certified for altitudes of 0 – 2000 ft, and must be de-rated by 10 percent for installations 

between 2000 and 4,500 ft. (derate an additional 4% for every 1,000 ft. above 4,500 ft. elevations). 

The IDV490NVC, IDV490PVC, IDV380NVC, and 380IDVPVC are equipped with a variable output gas control.

Manifold Press: (W.C.) 

3.5" 

Manifold Press: (W.C.) 

10" 

Maximum Supply Pressure  10.5" 

Maximum Supply Pressure 

13"   

Minimum Supply Pressure 

 4.5" 

Minimum Supply Pressure 

11" 

Plan for the installation of your insert. This includes determining the size of fireplace in which unit is to be installed, length of 

venting to be used, and finishing details, and whether any optional accessories (i.e. wall switch, or remote control) are desired. 

Consult your local building code agency to ensure compliance with local codes, including permits and inspections.

    

NATURAL 

PROPANE 

NATURAL 

PROPANE

  Max. Btu/hr Input 

40,000 

37,500 

30,500 

28,000

  Min. Btu/hr Input 

26,500 

29,000 

20,500 

22,000

  Orifice sizes (as shipped) 

#30 

#50 

#35 

#53