HearthRite HR06ML-1, HR10TL-1, HR10ML-1 Owner's Operation And Installation Manual

INFRARED VENT-FREE

PROPANE/LP GAS

SPACE HE AT ER

HR06ML-1 HR10ML-1 HR10TL-1

WA R NIN G : I m p r o p e r ins t a l l a t i o n ,
adj ustment , a lterati on, servi c e or maint e­nance can cause injury or property damage.
Refer to this manual for correct installation and
operational procedures. For assistance or
ad ditional i nformati on con sult a qualified
installer, service agency, or gas supplier.

This appliance may be installed in an aftermar­ket* p e r m a nentl y l o c ated, ma nufact u r e d
(mobile) home, where not prohibited by local
codes.
This appliance is only for use with the type of
gas i n dicated on the r a ting plate. This
appliance is not convertible for use with other
gases.

*Aftermarket: Completion of sale, not for purpose of
resale, from the manufacturer.

Do not store, or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.

WHAT TO DO IF YOU SMELL GAS

! Do not try to light any appliance.
! Do not touch any electrical switch; do not

use any phone in your building.
! Immediately cal l yo ur gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
! If you c annot reach your gas supplier, call
the fire department.
Installation and service must be performed by a
q u a l i f i e d in s t a l l e r , se r v i ce age n c y o r g a s
supplier.

Table of Contents

Important Safety Information.................................2

Product Features.....................................................3

Proper Ventilation & Fresh Air..............................4

Installation................................................................6

Operating Your Heater............................................10

Cleaning & Maintenance.......................................13

Trouble Shooting...................................................14

Specifications..........................................................17

Parts List..................................................................19

Warranty Information.............................................24

WARNIN G : I f the info rmation in this
manual is not followed exactly, a f ir e or

ex p l o si o n m a y re s u l t causing property
damage, personal injury, or loss of life.

WARNING: This is an unv ented gas­fired heater. It uses air (oxygen) f r o m t h e
r o o m i n w h i c h i t i s inst alled . Prov i­sions for adequate combustion and ventila­tion air must b e p ro v id e d . Re f e r to A i r
Fo r Combustion and Ventilation section on
page 4 of this manual.

WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM
HEATERS
Water vapor is a by-product of gas combust ion.An
unvented room heater productes approximately one (1)
ounce (30ml) of water for every 1,000 BTU’s (.3KW’s) of
gas input per hour. Refer to page 3.

Installer: Please leave these instructions with the
consumer.

Consumer: Please retain these instructions for
future use.

OWNER’S OPE RATI O N AN D INS TALLAT I ON MA NUAL

A Division of Empire Comfort Systems,Inc.

918 Freeburg Avenue

Phone : [phone] or 1-800-851-3153

Fax : [phone] or 1-800-443-8648

www.hearthrite.com

Belleville,IL 62220

IMPORTANT

WARNINGS

I M PO R TAN T: Re a d thi s

ow ner’s manu al care full y and
co m pl e t e l y b e f o r e t ry i ng t o
assemble, o p erate, or serv i c e
this he ater. Improper u s e of
this heater can cau se s erious
injury or death from burns,
f i re , e x pl o si o n, e l e c tr i ca l
sho c k, a n d c a rbon monoxi d e
poisoning.

Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.

Sur f a c e of he ate r b e c o m es
very hot whe n r unning heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater will
remain hot for a time after shut
down. Al l o w su r f a c e to co o l
before touching.

C a r e f u ll y s u p e r v is e y o u n g
children wh en they are in the
same room with heater.

Mak e sure grill gu ard i s in
place before running the heater.

10. Before using furniture polish,
wax, carpet cleaner, or similar
products, turn heater off. If heated,
the vapors from these products
may create a white powder
residue within burner box or on
adjacent walls or furniture.

11. Do not use heater if any part
has been under water.

Immediately call a qualified
service technician to inspect
the room heater and to
replace any part of the control
system and any gas control
which has been under water.

12. Turn off heater and let cool
before servicing. Only a
qualified service person should
service and repair heater.

13. Operating heater above
elevations of 4,500 feet could
cause pilot outage.

14. To prevent performance,
problems, do not use
propane/LP fuel tank of less
than 100 lbs. capacity.

Carbon Monoxid e Poisoning:

Early signs of carbon monoxide
po iso nin g re sem ble the flu wi th
headaches, dizziness, or nausea.
If you have these signs, the heater
may not be working properly. Get
fresh air at once! Have heater
serviced. Some people are more af­fected by carbon monoxide than
ot hers. Th ese inc lude pregna nt
women, persons with heart or lung
disease or anemia, those under the
influen ce of al cohol, and th ose
at high altitudes.
Propane/LP Gas: Propane/LP gas
is odorless. An odor-making agent
is added to Propane/LP gas. The
o d or h e l p s y o u d e t e c t a
Propane/LP gas leak . However,
the odor added to Propane/LP gas can
fa de. Pr opa ne/ LP g as ma y be
pr e sent even thou gh no odo r
exists. Make certain you read and
understand all warnings. Keep this
manual for reference. It is your guide
to safe and pr oper operati o n
of this heater.

WARNING: Do not use any

accessory not ap p r o v e d fo r
use with this heater.

WARNING: Any change to

this hea ter or its controls can
be dangerous.

DANGER: Carbon monoxide

poisoning may lead to death!

Due to high temperatures, heater
should be kept out of traffic and
away from furniture and draperies.

SAFETY INFORMATION

Keep the appliance area clea r
an d f r e e f r o m c o mb u s t i b le
mater i a l s , gasol i n e , and other
fl amm abl e v apo rs and li quids.

1. This appliance is only for use
with the type of gas indicated
on the rating plate. This
appliance is not convertible for
use with other gases.

2. Do not place propane/LP
supply tank(s) inside any
structure. Locate propane/LP
supply tank(s) outside.

3. If you smell gas

! Shut off gas supply.
! Do not try to light any appliance.
! Do not touch any electrical switch;

do not use any phone in your
building.
! Immediately call your gas sup­ plier from a neighbor’s phone.
Follow the gas supplier’s
instructions.
! If you cannot reach your gas
supplier, call the fire
department.

4. Always run heater with control
knob at LOW or HIGH locked
positions. Never set control
knob between locked positions.
Poor combustion and higher
levels of carbon monoxide may
result.

5. This heater needs fresh,
outside air ventilation to run
properly. This heater has an
Oxygen Depletion Sensor
(ODS) safety shutoff system.
The ODS shuts down the
heater if not enough fresh air
is available. See

Combustion and Ventilation

pages 4 and 5.

6. Keep all air openings in front
and bottom of heater clear
and free of debris. This will
insure enough air for proper

combustion.

7. If heater shuts off. Do not
relight until you provide fresh,
outside air. If heater keeps
shutting off, have it serviced.

8. Do not operate heater
where flammable liquids or va-

!

pors are used or stored
! under dusty conditions

9. Do not install models HR10ML and

HR10TL in a bathroom.

2

Fresh Air for

Heater
Cabinet

Burners

Grill

Control
Knob

Ignitor
Button

Lower
Front
Panel

PRODUCT IDENTIFICATION

Figure 1- Vent-Free Propane/LP Gas Heater

SAFETY DEVICE

A standard requiremen t for all vent-free room
heaters. This heater has a pilot with an Oxygen
Depletion Sensor(ODS) safety shutoff system.
The ODS/pilot shuts off the heater if there is
not enough fresh air.

PIEZO IGNITION SYSTEM

This heater is equipped with a piezo ignitor.
This system requires no matches, batteries, or
other sources to light heater.

THERMOSTATIC HEAT
CONTROL ON THERMOSTAT

MODELS

These heaters have a c ontrol valv e with a
thermostat sensing bulb. This results in the
greatest heater comfort and m ay re sul t in
lower gas bills.

LOCAL CODES

Install and use heater with care. Follow all local
codes. In the absence of local codes, use the
latest edition of
also known as NFPA 54*.
*Available from :
American National Standards Institute, Inc.

National Fire Protection Association, Inc.

National Fuel Gas code ANSZ223.1

1430 Broadway

New York, NY 10018

Batterymarch Park

Quincy, MA 02269

QUALIFIED INSTALLING AGENCY

Installation and replacement of gas piping, gas

utilization equipment or accessories and repair

and servicing of equipment shall be performed

only by a qualified agency. The term “qualified

agency” means any individual, firm, corporation, or

company that either in person or through a

representative is engaged in and is responsible

for (a) the installation, testing, or replacement of

gas piping or (b) the connection, installation,

testing, repair, or servicing of equipment; that is

experienced in such work; that is familiar with all

precautions required, and that has complied with

all the requirements of the authority having

jurisdiction.

State of Massachusetts: The installation must
be made by a licensed plumber or gas fitter in the
Commonwealth of Massachusetts.
Sellers of unvented propane or natural gas-fired
supplemental room heaters shall provide to each
purchaser a copy of 527 CMR 30 upon sale of the
unit.
In the state of Massachusetts, unvented propane
or nature gas-fired space heaters shall be prohib­ited in bedrooms and bathrooms.

UNPACKING

1. Remove heater from carton.

2. Remove all protective packaging applied to

heater for shipment.

3. Check heater for any shipping damage. If heater
is damaged. promptly inform dealer where you
bought heater.

,

WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS

Water vapor is a by-product of gas combustio n.An
unvented room heater productes approximately one (1)
ounce (30ml) of water for every 1,000 BTU’s (.3KW’s) of
gas input per hour.
Unv e n t ed r o o m he a t e rs a r e re c o m m end e d as
supplemental heat (a room) rather than a primary heat
source (an entire house) .In most supplemental heat
application, the water vapor does not create a problem.
In most applications, the water vapor enhances the low
humidity atmosphere experienced during cold weather.

The following steps will help insure that water vapor
does not become a problem.

1. Be sure t he heater is sized prope rly for th e
application, including ample combustio n ai r and
circulation air.

2. If high humidity is experienced, a dehumidifier may
be used to help lower the water vapor content of the
air.

3. Do not use an unvented room heater as the primary
heat source.

3

FRESH AIR FOR

PROVIDING ADEQUATE
VENTILATION

The following are excerpts from

National Fuel Gas Code. NFPA
54/ANS Z223.1, Section 5.3.

Air for
Combustion and Ventilation. All
spaces in homes fall into one of
the three following ventilation
classifications:

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space
The information on pages 4
through 6 will help you classify
your space and provide adequate
ventilation.

WARNING: This heater

sha l l not be i n stalled in a
co nfi ned space or unusually
tig h t con s t r u c tion unles s
pro v isions are prov i ded for
adeq u a t e co m b ustion and
ve n ti l at i o n a i r . Re a d t h e
f o l l o w i n g i n s t ru c t i on s t o
insure proper fresh air for this
and other f u e l - b u r n i n g

appliances in your home.

Confined and
Unconfined Space

The National Fuel Gas Code ANS
Z223.1

defines a confined space as
a space whose volume is less than
50 cubic feet per 1,000 Btu per hour
( 4 . 8 m

3

p e r k w ) o f t h e
agg r e gate input rat i n g o f a l l
appliances installed in that space
and an unconfined space as a
space whose volume is not less
than 50 cubic feet per 1,000 Btu per
hou r ( 4 . 8 m

3

per kw) of the
agg r e gate input rat i n g o f a l l
appliances installed in that space.
Rooms communicating directly with
t h e s p a c e i n w h i c h t he
appliances are installed*, through
openings not furnished with doors,
ar e co nsid ered a part of the
unconfined space.
This heater shall not be installed
in a confined space or unusually
t i g h t c on s t r u c t i o n u nl e s s
pr o v i sio n s are p r o vi d e d for
adequate co m b u s t i on and
ventilation air.

*

A d j o i n i n g r o o m s a r e
communicating only if there are
d o or l e ss p a ss a g ew a y s o r
ventilation grills between them.

WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined
space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one
of th e methods described in the Na t i o nal Fu e l Gas Co d e , AN S Z22 3 . 1 , Section 5.3
or applicable local codes.

Unusually Tight Construction

The air that leaks around doors and
windows may provide enough fresh
air for combustion and ventilation.
However, in buildings of unusually
tight construction. you must provide
additional fresh air.

Unusually tight construction is
defined as construction where:

a. walls and ceilings exposed to the
outside atmosphere have a
continuous water vapor retarder
with a rating of one perm (6

×

10

-11

kg
per pa-se c - m2) o r less with
openings gasketed or sealed

and
b. weather stripping has been
ad ded on openable windows a nd
doors

and

c. caulking or sealants are applied to
areas such as joints around win­dow and door frames, between sole
plates and floors, between wall­ceiling joints, between wall panels, at
penetrations for plumbing, electrical,
an d gas l ine s, and at other
openings. If your home meets all of

the three criteria above, you must
provide additional fresh air.

See
Ventilation Air from Outdoors,
pages 5 and 6.

If your home does not meet all of
the three crite r i a a b o v e

see
Dete rmining F resh-Air Flow for
Heater Location, page 4, 5.

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if you have a Confined or Unconfined Space*

Use this worksheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways
or ventilation grills between the rooms.

1. Determine the volume of the space (length

×

width×height).

Length×Width×Height=

cu.ft. (volume of space)
Example: Space size 18ft (length)×16ft( width)×8ft. (ceiling height)=2304cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these
rooms to the total volume of the space.

2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

(volume of space) 50 cu. ft.=(Maximum Btu/Hr the space can support)

Example: 2304 cu. ft. (volume of space) 50 cu.ft.=46.1 or 46,100(maximum Btu/Hr the space can support)

COMBUSTION AND
VENTILATION

4

5

WARNING: Rework worksheet,
adding the space of the adjoining
unconfined space. The combined spaces
must have enough fresh air to supply all
appliances in both spaces.

AIR FOR COMBUSTION AND
VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
ad join ing u nco nfin ed sp ace, 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 and 2, Figure 2). You can also
remove door into adjoining room (see option
3, Figure 2).

Follow the National Fuel Gas
Code NFPA 54/ANS Z223.1. Section 5.3, Air
for Combustion and Ventilation

for required

size of ventilation grills or ducts

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an
unconfined space. You will need no additional fresh air ventilation.

3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater

Btu/Hr
Gas water heater* Btu/Hr
Gas furnace Btu/Hr
Vented gas heater Btu/Hr
Gas Fireplace logs Btu/Hr
Other gas appliances* + Btu/Hr
Total = Btu/Hr
*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and
vents to the outdoors.

4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

Btu/Hr (maximum the space can support)

Btu/Hr (actual amount of Btu/Hr used)

Example

: 46,100 Btu/Hr(maximum the space can support)
50,000 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.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined
space, remove door to adjoining room or add ventilation grills between rooms. See

Ventilation Air From

inside Building

, page 5.

B. Vent room directly to the outdoors. See

Ventilation Air From Outdoors

, page 6 .

C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

Figure 2 -Ventilation Air from Inside Building

Example:
Gas water heater 40,000 Btu/Hr
Vent free heater + 10,000 Btu/Hr
Total = 50,000 Btu/Hr

6

VENTILATION AIR

Ventilation Air From Outdoors

Pro v i de e xtra fresh air by u sing
ventilation grills o r ducts: You must
provide two permanent openings: one
within 12

" of the ceiling and one within

12" of the floor.
Connect these items directly to the
outdoors or spaces open to the outdoors.
Thes e spa ces i nclud e att ics and crawl
spaces. Follow the

National Fuel Gas
Code NFPA 54/ANS Z223.1, Section 5.3.
Air for Combustion and Ventilation

for

required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a
thermost a t - c o n t r o l l e d po w e r v e n t .
Heated air entering the attic will activate
the power vent.

NOTICE: This heater is
intended for use as supplemental
heat. Use this heater along with
your primary heating system. Do
not install this heater as your
primary heat source. If you have
a central heating system, you
may run system’s circulating
blower while using heater. This
wi ll he lp circ ulat e the hea t
throughout the house. In the
event of a power outage, you can
use this heater as your primary
heat source.

WARNING: A quali fied
service per son must inst all
heater. Follow all local codes.

CHECK GAS TYPE

Use only Propane/LP gas. If your
gas supply is not Propane/LP, do not
install heater. Call dealer where you
bought heater for proper type heater.

INSTALLATION NEEDS

Before installing heater, make sure
you have the items listed below.

! piping (check local codes)
! sealant (resistant to Propane/LP

gas)

! equipment shutoff valve*
! ground joint union
! test gauge connection*
! sediment trap
! tee joint
! pipe wrench

*A CSA/AGA design-certified equip­ment shutoff valve with 1/8

" NPT

tap is an acceptable alternative to
test gauge connection. Purchase
the optional CSA/AGA design cer­tified equipment shutoff valve from

your dealer.

LOCATING HEATER

This heater is d esigned to be
mounted on a wall.
For convenience and efficiency,
install heater
! where there is easy access for
operation, inspection, and service
! in coldest part of room

INSTALLATION

CAUTION: This heater cre-

ates warm air currents. These
currents move heat to wall sur­faces next to heater. Installing
heater next to vinyl or cloth wall
co veri ngs or ope rat ing heate r
where impurities (such as tobacco
smoke, aromatic candles, clean­ing fluids, oil or kerosene lamps,
etc.) in the air exist may discolor
walls.

WARNING: Never install

the heater
! in a bathroom(Models

HR10ML and HR10TL,
only HR06ML is allowed in a
bathroom. Check local codes.)

! in a recreational vehicle.
! where curtains, furniture.
! as a fireplace insert.
! in high traffic areas.
! in windy or drafty areas.

Figure 3 -Ventilation Air from Outdoors

CAUTION: If you install the

heater in a home garage
! heater pilot and burner must
be at least 18 inches above
floor.
! locate heater where moving
vehicle will not hit it.

Wh en the HR06ML is installed in

ba thro oms ,do not us e fla mmab le

products such as aerosol hair spray,

foot spary or any product that contains

flammable vapors and keep towels

away from heater.(only HR06ML is al­lowed in a bathroom.)

INSTALLATION

WARNING: Maintain the

min i m u m clea r a nces s h o wn
i n F i g u r e 4 . I f y o u c a n,
provide greater clearances from
floor, ceiling, and joining wall.

Figure 7 - Mounting Bracket
Clearances

Figure 6 - Removing Lower Front
Panel Of Heater

FASTENING HEATER TO WALL
Mounting Bracket

The mounting bracket is located
on back panel o f heate r (se e
Figure 5). It has been taped there
for sh i p p i n g . remo v e m o u n ting
bracket from back panel.

Removing Lower Front Panel Of
Heater

1. Remove two Screws near
bottom corners of lower front
panel.

2. Pull bottom of lower front panel
forward, then down (see Figure

6).

Methods For Attaching Mounting
Bracket To Wall

Only use last hole on each end
of mounting bracket to attach
bracket to wall. Attach mounting
bracket to wall only in one of two
ways:

1. Attaching to wall stud

2. Attaching to wall anchor
Attaching to Wall Stud: This method
provides the strongest hold. Insert
mounting screws through mounting
bracket and into wall studs.

Attaching to Wall Anchor: This
method al l o w s you to at tach
mounting bracket to hollow walls
(wal l are as between s tuds) or to
solid walls (concrete or masonry).

Decide wh ich method b ett er
suits your needs. Either method
will provide a secure hold for the
mounting bracket.

Marking Screw Locations

1. Tape mounting bracket to wall
where heater will be located. Make
s u r e m o u n t i n g b r a c k e t i s
level.

2. M a r k screw l o c a t i o n s on
wall. (see Figure 7)

Note:

O nly m ark l ast h ole o n
each end of mounting bracket. In­se rt moun tin g scr ews thr oug h
these holes only.

3. Remove tape and m ounting
bracket from wall.

WARNING: Maintain mini­mum clearances shown in Fig­ure 4. If you can, provide greater
c l ea r a n c es f ro m fl o or
and joining wall.

Figure 5 -Mounting Bracket
Location

Figure 4 -Mounting clearances As
Viewed From Front of Heater

7

INSTALLATION

Figure 10 - Mounting Heater Onto
Mounting Bracket

Figure 8 - Folding Anchor

Figure 9 - Popping Open Anchor
Wing For Thin Walls

Attaching Mounting Bracket To
Wall

Note:

Wall anchors, mounting
screws, and spacers are in
hardware package. The hardware
package is provided with heater.

Attaching to Wall Stud Method

For attaching mounting bracket to
wall studs

1. Drill holes at marked locations
using 9/64" drill bit.

2. Place mounting bracket onto
wall. Line up last hole on each
end of bracket with holes drilled
in wall.

3. Insert mounting screws through
bracket and into wall studs.

4. Tighten screws until mounting
bracket is firmly fastened to
wall studs.

Attaching to Wall Anchor Method

For attaching mounting bracket to
hollow walls (wall areas between
studs) or solid walls (concrete or
masonry)

1. Drill holes at marked locations
using 5/16" drill bit. For solid
walls (concrete or masonry),
drill at least 1

" deep.

2. Fold wall anchor as shown in
Figure 8 below.

3. Insert wall anchor (wings
first) into hole. Tap anchor
flush to wall.

4. For thin walls (1/2

" or less),

insert red key into wall
anchor. Push red key to

"pop" open anchor wings

(see Figure 9).

IMPORTANT: Do not
hammer key! For thick walls
(over 1/2

" thick) or solid walls,

do not pop open wings.

5. Place mounting bracket onto
wall. Line up last hole on
each end of bracket with wall
anchors.

6. Insert mounting screws through
bracket and into wall anchors.

7. Tighten screws until mounting
bracket is firmly fastened to
wall.

Installing Bottom Mounting
Screw

1. Locate bottom mounting hole. This
hole is near bottom on back
panel of healer (see Figure 11).

2. Mark screw location on wall.

3. Remove heater from mounting
bracket.

4. If installing bottom mounting
screw into hollow or solid wall,

install wall anchors. Follow steps
1 through 4 under Attaching

To Wall Anchor Method. If
installing bottom mounting
screw into wall stud, drill
holes at marked locations
using 9/64

" drill bit.

5. Replace heater onto mounting
bracket.

6. Place spacers between
bottom mounting holes and
wall anchor or drilled holes.

7. Hold spacer in place with one
hand. With other hand, insert
mounting screw through
bottom mounting hole and
spacer. Place tip of screw in
opening of wall anchor
or drilled holes .

8. Tighten both screw until heater
i s f i r m l y s ec u r e d t o
wall. Do not over tighten.
! Note: Do not replace lower front
panel at this time. Replace lower
front panel after making gas
connections and checking for
leaks(see page 9) .

Pl a cing Hea t er On Mount i ng

Bracket

1. Locate two horizontal slots on
back pa nel o f h e a t er (see
Figure 10).

2. P lace heater onto mounting
bracket. Slide horizontal slots
onto st a nd-o ut tabs on
mounting bracket.

Figure 11 - Installing Bottom
Mouting Screw

8