Harman Home Heating MARK I, Installation And Operating Manual

Magnafire Series Coal Stoves

e) Improperly sized flue - Too small of a chimney is 

incapable of moving the volume of air necessary. Too 

large of a flue could have trouble warming up to cre

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ate the necessary upward flow. 

F) Chimney offsets - offset chimneys should be 

avoided if possible. Not only can the offset affect draft, 

it is also a place for debris to collect over time.

G) Too many elbows - The flue connector has more 

then two elbows in it. Sometimes, depending on 

overall chimney performance, one elbow could be too 

many.

H) Vent sharing - No more than one heating appliance 

shall vent into a single flue.

THe MoST IMPorTaNT THING To reMeMber 

aboUT CHIMNeyS IS THeIr Need For MaIN

-

TeNaNCe aNd CleaNING. IF a CHIMNey IS NoT 

CleaNed oN a FreQUeNT baSIS, IT WIll aF

-

FeCT draFT, aS Well aS be a CoNTrIbUTING 

FaCTor To a PoTeNTIal CHIMNey FIre.

3.3 WHAT TO DO IF YOU HAVE A PROB-

LEM.

If you have a chimney fire:

1. Be sure everyone is out of the house.

2. Call the fire department.

3. Close the draft control on the ash door and 

make sure both doors on the stove are closed and 

latched.

4. Do not put water on the fire, this will cause un-

necessary damage to the stove and flue. 

5. Have the chimney inspected and repaired prior 

to building another fire.

Smoke puffs out of stove;

a) Check previous suggestions for insufficient draft. 

b) Check draft control for proper operation.

C) Chimney may be too low. Increase height. 

d) add more fresh air to the room. your home may be  

so tight that there is not enough oxygen getting to the 

fire.

e) remember, open the draft control and crack the 

door open slightly before reloading or checking the 

fire.

F) Check the ashes. The ash pan and firebox may be 

overloaded with ashes.

G) Check the chimney cleanout door to ensure it 

closes properly.

4. Grates

4.1 GRATE SYSTEM AND CONTROLS.

The Grates are made of heavy-duty cast iron. The 

function of the grate system is to support the coal 

while allowing air flow through the fire. The grate sys

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tem also allows removal of the ashes by shaking them 

through the grates. 

The grates are removable without the use of tools, 

once the fire bricks are removed, the grates simply 

lift out. lift the right end higher to disengage from the 

shaking link. To re-install the grates, lower them, one 

at a time, left end first, be sure the grate hooks into 

the grate link as you drop it into place. your grates will 

last forever, as long as you keep your ashes cleaned 

out of the stove. When ashes are left pile-up against 

the grates, the air-flow is blocked. With no air flow 

through the grates, they will begin to sag from the 

intense heat. 

The grates are designed to accommodate three differ

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ent sizes of anthracite coal. Pea is defined as being 

able to fit through a round screen hole of 9/16” to 7/8”. 

Nut or Chestnut is defined as being able to fit through 

a round screen hole of 7/8” to 1½”. Finally , Stove coal 

which is 1½” to 2½” in size. Pea or Nut you’ll find work 

the best for starting a fire, while all three sizes burn 

just as well.

The external shaker handle allows for greater safety 

from burns, and the convenience of needing no extra 

tools. 

Grates

Grate Link

Shaker Bar

Shaker Handle

Stove body

Venting & Grates