Harman®  •  P42i Owner’s Manual  •  2023 -___  •  03/234 8742-900A
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Product Specic and Important Safety Information 
A. Appliance Certication
NOTE: Thisinstallationmustconformtolocalcodes.Inthe
absence of local codes you must comply with the ASTM
E1509,ULC-S628 & (UM) 84-HUD
THE STRUCTURAL INTEGRITY OF THE 
MANUFACTURED HOME FLOOR, WALL, AND CEILING/
ROOF MUST BE MAINTAINED.
DO NOT INSTALL IN SLEEPING ROOM.
The  P42i-TC Pellet Insert is certied to
comply with 2020 EPA particulate emission 
standards.
MODEL: P42i-TCPelletInsert
LABORATORY: PFS•TECO
REPORT NO. F22-858
TYPE: PelletFueledInsert/Supplementary
ForResidentialUse
STANDARD(s): ASTME2779,ASTME2515,ASTM
E1509,ULC-S628
ELECTRICAL 
RATING:
120VAC,60Hz,Start4.2Amps,Run
2.8 Amps
GLASS 
SPECIFICATION:
5mmmirroredceramicglass
B. Manufactured Home Approved
This appliance is approved for manufactured home 
installations when not installed in a sleeping room and when 
an outside combustion air inlet is provided. 
The structuralintegrity of the manufactured home oor,
ceiling, and walls must be maintained. The appliance must 
be properly grounded to the frame of the manufactured home 
anduseonlylistedpelletvent,Class“PL”connectorpipe.
AHarman®OutsideAirKitmustbeinstalledinamanufactured
home installation.
WARNING
Risk of Fire! Hearth & Home Technologies disclaims any 
responsibility for, and the warranty and agency listing will 
be voided by the below actions.
C. BTU & Eciency Specications
EPA Certication Number: F22-858
EPA Certied Emissions: 1.0 g/hr
*LHV Tested Eciency: 84%
**HHV Tested Eciency: 79%
***EPA BTU Output: 5,637-32,782
****BTU Input 7,400 – 41,800
Vent Size: 4Inch
Hopper Capacity: 64.5lbs
Fuel Wood Pellet
NOTE:  Hearth & HomeTechnologies, manufacturer of
this appliance, reserves the right to alter its products, their 
specicationsand/orpricewithoutnotice.
* Weighted average LHV eciency using data collected 
during EPA emissions test.
**Weighted average HHV eciency using data collected 
during EPA emissions test.
***A range of BTU outputs based on EPA Default Eciency 
and the burn rates from the low and high EPA tests.
****Based on the maximum feed rate per hour multiplied by 
approximately 8600 BTU’s which is the average BTU’s from 
a pound of pellets.
Thiswoodheaterhasamanufacturer-setminimumlowburn
ratethatmustnotbealtered.Itisagainstfederalregulations
to alter this setting or otherwise operate this wood heater 
in a manner inconsistent with operating instructions in this 
manual.
This wood heater needs periodic inspection and repair for 
properoperation.Itisagainstfederalregulationstooperate
this wood heater in a manner inconsistent with operating 
instructions in this manual.
DO NOT:
  •  Install or operate damaged appliance
  •  Modify appliance
  •  Install other than as instructed by Hearth & Home 
Technologies
  •  Operate the appliance without fully assembling all 
components
  •  Overre
  •  Install any component not approved by Hearth & 
Home Technologies
  •  Install parts or components not listed or approved.
  •  Disable safety switches
Improper installation, adjustment, alteration, service or 
maintenance can cause injury or property damage. 
For assistance or additional information, consult a qualied 
installer, service agency or your dealer.
Harman
®
 is a registered trademark of Hearth & Home
Technologies.
This wood heater needs periodic inspection and repair for 
properoperation.Itisagainstfederalregulationstooperate
this wood heater in a manner inconsistent with operating 
instructions in this manual.
CAUTION