Lennox Hearth 1900HT-M Manuale Utente

PAGE 7 

MANUFACTURED (MOBILE) HOME REQUIREMENTS 

 

This stove is certified as a Room Heater, Solid Fuel Type 
and may be used in Manufactured Housing providing the 
following requirements are followed: 
•  WARNING:  DO NOT INSTALL IN SLEEPING 

ROOM.  

•  An outside air inlet must be provided for combustion 

and be unrestricted while unit is in use.  

•  Regulations require that the appliance must be se-

cured to the floor and grounded to the chassis. See 
Securing the Stove to the Floor (and) Grounding 
Stove, following. 

•  CAUTION:  THE STRUCTURAL INTEGRITY OF 

THE MOBILE HOME FLOOR, WALL, AND CEIL-
ING/ROOF MUST BE MAINTAINED.  

 

 

Ventilation is essential when using a solid fuel burning 
heater. The combustion process of this heater uses oxy-
gen from inside the dwelling and it may be necessary to 
open a window or to duct outside combustion air directly 
to the appliance (as outlined in this manual). Modern 
construction standards have resulted in homes that are 
highly energy-efficient and that allow little heat loss and 
air transfer. Other appliances in the dwelling also con-
tribute to removing air from the dwelling (i.e. clothes dry-
ers, exhaust fans, fireplaces, and other fuel burning ap-
pliances). If the available fresh air delivery in the dwelling 
is insufficient to support the demands of these appli-
ances, problems can result (i.e. excessive negative 
pressure can develop in the dwelling which will affect the 
rate at which this appliance can draft [See Draft Re-
quirements, page 10], icing can develop in some envi-
ronments, etc.). 
 

The following 2 optional kits are required to deliver out-

side air to this appliance. Contact your dealer to order. 

 

Catalog # 14M67 Outside Air Floor Duct 

 

Catalog # 14M68 Back Cover Plate 

 

 

In all manufactured (mobile) homes and in many site built 

residences (subject to local code), a stove may be required 

to use outside air for combustion. A 5 ¼” square” outside 

air floor duct Back Cover Plate is available through your 

dealer. 

 

This stove can take in outside air directly through the base. 

This type installation requires a hole through the floor protec-

tor and the use of outside air floor duct to penetrate into the 

air space below the home. 

NOTES:  The floor air duct can be positioned anywhere 

2" in from either side under the pedestal. The floor air 

duct opening must be protected from any possible ob-

struction including loose floor insulation. This part can be 

purchased from your local dealer.  

Manufactured (Mobile) Homes Only 

Once the floor air duct and hearth pad are in position 

confirm that the hole of the hearth pad is aligned with the 

outside air opening. Next position and align the stove on 

the hearth pad. Manufactured Home installations require 

that the stove be secured to the floor. This ensures that 

the stove will not shift if the Manufactured Home is ever 

moved. To do this, drill two holes (use a marking instru-

ment long enough and small enough to fit through the (4) 

four holes in the pedestal base and mark the hearth pad. 

Then remove the stove. Drill the (4) four holes, (2) two 

on each side of the pedestal base) with a 1/4" drill bit. 

Drill down through the hearth pad and the Manufactured 

Home floor. Use 1/4" lag bolts and secure to the Manu-

factured Home floor. 

 
NOTE: If the composition of the manufactured home 

home is being moved.