853128B-3705H

United States Stove Company

227 Industrial Park Rd.

South Pittsburg, TN 37380

U.S. ENVIRONMENTAL PROTECTION AGENCY

Certied to comply with the 2016 particulate

emission standards. Not approved for sale after

May 15, 2020

Wood Only Central Furnace

Improper Installation Could Void Your Warranty!

Certied to: UL-391 (R2015) and Certied to: CSA

B266.1-11 (R2014)

Report No. 0215WH055S.REV002

CONGRATULATIONS!

You’ve purchased a heater from North America’s oldest manufacturer of wood burning products.

By heating with wood you’re helping to CONSERVE ENERGY!

Wood is our only Renewable Energy Resource. Please do your part to preserve our wood supply. Plant at least

one tree each year. Future generations will thank you.

This manual describes the installation and operation of the Ashley, AF1500E wood heater. This heater meets

the 2016 U.S. Environmental Protection Agency’s emission limits for wood heaters sold after May 15, 2016. Under

specic EPA test conditions this heater has been shown to deliver heat at a rate of 18,850 – 56,000 BTU/hr. This

heater achieved a particulate emissions rate of 0.39 lb/mmBtu when tested to method CSA B415.1-10 (*and an

This heater is designed to burn natural wood only. Higher efciencies and lower emissions generally result when

burning air dried seasoned hardwoods, as compared to softwoods or to green or freshly cut hardwoods.

This wood heater needs periodic inspection and repair for proper operation. It is against federal regulations to

operate this wood heater in a manner inconsistent with operating instructions in this manual.

Combustible: Wood

Flue Pipe Diameter: 6” (153cm)

Flue Pipe Type: (Standard,

Single Wall, or Double Wall):

Black or Blued Steel 2100°F (650°C) Class “A”

Minimum Chimney Height: 12’

Volume:

Cubic Feet:

5.2 cubic feet

Door Opening: Width x Height: 11.6” X 11.5”

Weight (lbs): 509 lbs.

• WARNING: Do not operate with fuel loading or ash removal doors open.

• Do not connect this unit to a chimney flue serving another appliance.

• WARNING DANGER: Risk of re or explosion. Do not burn garbage, gasoline, naphtha, motor oil, or other

• Hot while in operation. Keep children, clothing and furniture away. Contact may cause skin burns.

• Do not use chemicals or fluids to ignite the re.

• Do not leave the furnace unattended when the door is slightly opened.

• Do not burn garbage, flammable fluid such as gasoline, naphtha or motor oil.

• Always close the door after the ignition.

• Consult your municipal building department or re ofcials about permits, restrictions and installations

1. Remove all packaging from the furnace.

2. Remove the supplied parts from the furnace.

Inspect for any damage. Ensure that the bricks and ash plug are positioned correctly and not broken (see

illustration for proper brick arrangement).

The following is a list of tools and materials needed to install

your furnace.

• Non-combustible floor protector as specied in this

• All chimney and chimney connector components

• Electrical wiring tools and supplies.

• Ductwork for supply and return air.

Proper Fire Brick Alignment

Dimension Inch mm

A Backwall to Furnace 28 712

B Sidewall to Furnace 16 407

J Minimum Ceiling Height 77 1956

The installation of this furnace includes supplying electrical power, return (fresh air) ductwork, and supply air

ductwork. This furnace may be installed in two different congurations.

1. Stand alone wood furnace

2. Add-on wood furnace

See kit installation section in this manual to ensure proper assembly, installation and operation of your new

furnace.

If installing in an area with a fan it should not be allowed to create negative pressure in the room where the

furnace is installed.

combustibles, floor protector specications and safety warnings.

3. Remove blowers from cartons. Remove

4. Wire right side blower rst (See wiring

Use the two included bolts and nuts to secure the handle to the stove as shown.

Note: Adjust the handle as needed to insure a proper seal.

All electrical connections should be done by a qualied electrician

It is recommended to connect the furnace to its own 15 amp 120 Volt circuit from the house power supply

Method D. 2” (50.8 mm) Clearance to Combustible Wall

Member: Start with a solid-pak listed factory built chimney

section at least 12” (304 mm) long, with insulation of 1” (25.4

mm) or more, and an inside diameter of 8” (2 inches [51 mm]

larger than the 6” [152.4 mm] chimney connector). Use this

as a pass-through for a minimum 24-gauge single wall steel

chimney connector. Keep solid-pak section concentric with

and spaced 1” (25.4 mm) off the chimney connector by

way of sheet metal support plates at both ends of chimney

section. Cover opening with and support chimney section

wall pass-through system and the chimney wall, to but not past the inner flue liner face. A chimney connector

shall not pass through an attic or roof space, closet or similar concealed space, or a floor, or ceiling.

The furnace pipe must be made of aluminized

or cold roll steel with a minimum thickness of

0.021” or 0.53 mm. It is strictly forbidden to use

galvanized steel.

Your connector should be assembled in such a

way that the male section (crimped end) of the

pipe faces down. Attach each of the sections to

one another with three equidistant metal screws.

To insure a good draft, the total length of the furnace pipe should never exceed 8’ to 10’ (2.4m to 3.04 m).

(Except for cases of vertical installation, cathedral-roof style where the smoke exhaust system can be much

longer and connected without problem to the chimney at the ceiling of the room).

There should never be more than two 90 degrees elbows in the smoke exhaust system.

Installation of a “barometric draft stabilizer” (replace register) on a smoke exhaust system is prohibited.

Do not use with a flue damper. With a controlled combustion wood furnaces the draft is regulated upon intake

of the combustion air in the furnace and not at the exhaust.

When a metal prefabricated chimney is used, the

manufacturer’s installation instructions must be followed. You

obstructions for safety and proper draft operation.

When increasing the amount of primary air supplied to the heater, the secondary should also be increased as

well to ensure a clean burn.

Rear Pilot/Tertiary Air – The air that is introduced at the back of the rebox and is to help sustain heat in the

secondary air to help ensure a cleaner burn.

Start up: During Start-up the Primary and the Secondary air adjustments should be in the fully open or the “High”

setting positions. This allows for the maximum amount of combustion air during the initial start-up to insure the

fastest and cleanest start-up. The primary air will be in the “High” position when the thermostat is calling for heat.

These settings should remain open until the stove has heated up and an adequate re has been established.

The top down method of re building is recommended for this appliance. After making sure that the stove air

intake controls are fully open (open all three air controls to there maximum setting). Place the largest pieces of

wood on the bottom, laid in parallel and close together. Smaller pieces are placed in a second layer, crossways

to the rst. A third layer of still smaller pieces is laid crossways to the second, this time with some spaces between.

3. Materials containing rubber, including tires;

4. Materials containing plastic;

5. Waste petroleum products, paints or paint

thinners, or asphalt products;

6. Materials containing asbestos;

7. Construction or demolition debris;

8. Railroad ties or pressure-treated wood;

9. Manure or animal remains;

11. Unseasoned wood; or

12. Paper products, cardboard, plywood, or

particleboard. The prohibition against burning

these materials does not prohibit the use of re

starters made from paper, cardboard, saw dust,

wax and similar substances for the purpose of

starting a re in an affected wood heater.

Burning these materials may result in release of toxic fumes or render the heater ineffective and cause smoke.

Do not burn manufactured logs made of wax impregnated sawdust or logs with any chemical additives.

Dead wood lying on the forest floor should be considered wet, and requires full seasoning

time. Standing dead wood can usually be considered to be about 2/3 seasoned. Splitting

and stacking wood before it is stored accelerates drying time. Storing wood on an

elevated surface from the ground and under a cover or covered area from rain or snow

also accelerates drying time. A good indicator if wood is ready to burn is to check the

piece ends. If there are cracks radiating in all directions from the center then the wood

NOT BURN GARBAGE, GASOLINE, NAPTHA,

ENGINE OIL, OR OTHER INAPPROPRIATE

MATERIALS. Any type of wood may be used

in your furnace, but specic varieties have

consult the following table in order to make

the best possible choice.

TYPE

WEIGHT

(LBS. CU. FT.,

PER CORD

SPLITS

Birch

It is EXTREMELY IMPORTANT that you use DRY WOOD only. The wood should have dried for 9 to 15 months, such

that the humidity content (in weight) is reduced below 20% of the weight of the log. It is very important to keep

in mind that even if the wood has been cut for one, two or even more years, it is not necessarily dry, if it has

been stored in poor conditions. Under extreme conditions it may rot, instead of drying. This point cannot be over

stressed; the vast majority of the problems related to the operation of a wood furnace is caused by the fact that

the wood used was too damp or has dried in poor conditions.

Smaller pieces of wood will dry faster. All logs exceeding 6” in diameter should be split. The wood should not be

stored directly on the ground. Air should circulate through the cord. A 24” to 48” air space should be left between

each row of logs, which should be placed in the sunniest location possible. The upper layer of wood should be

protected from the elements but not the sides.

NOTICE: To minimize the risk of smoke spillage when opening the door with a re in your furnace, crack

When the furnace is thoroughly warmed, place one piece of split wood (about ve inches in diameter) parallel

to the door on the bed of red embers.

The fresh paint on your furnace needs to be cured to preserve its quality. Once the fuel charge is properly

ignited, only burn small res in your furnace for the rst four hours of operation. Never open the air control’s more

than necessary to achieve a medium burn rate.

Make sure that there’s enough air circulation while curing the furnace. DO NOT connect your furnace to the

duct work during this curing process. The odors could be smelled during the 3 or 4 rst res. Never start your

furnace outside. You will not be able to see if you are over heating.

1. Make sure that your furnace has been installed as per the instructions outlined in this manual and the proper