Enerco TSVFB10LP 사용자 설명서

Installation Instructions and Owner’s Manual

Unvented Liquid Propane Fired Room Heater

attics* and crawl spaces. Follow the National Fuel Gas 

Code NFPA 54/ ANSI Z223.1, Section 5.3, Air for Com-

bustion and Ventilation for required size of ventilation 

grills or ducts.

*IMPORTANT: Do not provide openings for inlet or 

outlet into attic. If attic has a thermostat-controlled 

power vent, heated air entering the attic will activate 

the power vent.
IMPORTANT: Vent-free heaters add moisture to 

the air. Although this is beneficial, installing heater 

in rooms without enough ventilation air may cause 

mildew to form from too much moisture. See Fresh 

Air for Combustion and Ventilation, pages 3  

through 5. 

NOTICE: This heater is intended for the use as supple-

mental heat. Use this heater along with your primary 

heating system. Do not install this heater as your pri-

mary heat source. If you have a central heating system, 

you may run system’s circulating blower while using 

heater. This will help circulate the heat throughout the 

house. In the event of a power outage, you can use this 

heater as your primary heat source for the duration of 

the outage. 

heater, Gas furnace, Vented gas heater, Gas fire-

place logs, and Other gas appliances*

*Do not include direct-vent gas appliances. Direct-

vent draws combustion air from the outdoors and 

vents to the outdoors.
Example:
Gas water heater  40,000 Btu/hr
Vent Free Heater +  20,000 Btu/hr
Total 

 

=60,000 Btu/hr

4. Compare the maximum Btu/hr the space can support 

with the actual amount of Btu/hr used.
Example: 51,800 Btu/hr (maximum Btu/hr the   

 

space can support)

 

60,000 Btu/hr (Actual amount of Btu/hr used)

The space in the above example is a confined 

space because the actual Btu/hr used is more than 

the maximum Btu/hr the space can support.

are as follows:
A. Rework worksheet, and the space of an adjoining 

room. If the extra space provides an unconfined 

space, remove door to adjoining room or add venti-

lation grills between the rooms. See Ventilation Air 

From Inside Building (Fig. 2)

B. Vent room directly to the outdoors. See Ventilation 

Air From Outdoors (Fig. 3). 

C. Install a lower Btu/hr heater if lower Btu/hr size 

makes room unconfined. 

If actual Btu/hr used is less than the maximum Btu/

hr the space can support, the space is an uncon-

fined space. You will need no additional fresh air 

ventilation.

This fresh air would come from an adjoining unconfined 

space. When ventilation to an adjoining unconfined 

space, you must provide two permanent openings: one 

within 12” of the ceiling and one within 12” of the floor 

on the wall connecting the two spaces (see options 1 

& 2 of figure 2). You can also remove door into adjoin-

ing room (see option3, fig 2). Follow the National Fuel 

Gas Code NFPA 54/ ANSI Z223.1, Section 5.3, Air for 

Combustion and Ventilation for required size of ventila-

tion grills or ducts.

  WARNING: Rework worksheet, adding the space 

of the adjoining unconfined space. The combined 

space must have enough fresh air to supply all ap-

pliance in both spaces. 

If necessary provide extra fresh air by using ventila-

tion grills or ducts. Connect these items directly to the 

outdoors or spaces open to the outdoors. These include