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Troubleshooting Wood Burning Fireplaces
Quick help guide
24 Jul 2006

 
 

1. I can’t get a good fire going, what am I doing wrong?

Questions

Causes

Solutions

Is the damper open?

§     No Draft

§     No combustion air

Open the damper

Is there enough paper/starter?

§     Insufficient heat to ignite kindling

Use more paper/starter

Is there enough kindling?

Is the kindling dry?

§     Insufficient heat to ignite fuel

Use more dry kindling

Is there too much wood?

 

Is the wood too big?

Is the wood dry?

§     Insufficient heat to establish draft

§     Insufficient air passage

§     Insufficient surface area

§     Ignition temperature high due to moisture

Use small split wood that is well seasoned (split covered on top at least 6 months, preferably a year)

 

Are there adequate air spaces between fuel pieces?

§     Insufficient combustion air and exposed surface area

 

Arrange the kindling and wood for air movement

 

Is the chimney pre-warmed?

§     Exposed, cold chimney down drafting

Use lighted rolled newspaper at throat to start upward movement.

Is there smoke in the house?

§     Damper closed

§     Obstruction in chimney

§     Downdraft from chimney temperature or from negative house pressure

 

Check damper; have chimney checked if worked previously; pre-warm chimney, shut off exhaust devices, open window slightly

Does the kindling, wood not ignite?

§      Condition, amount, arrangement of kindling and fuel

Use more fuel, drier, well spaced kindling and fuel

Does the kindling ignite but the fuel doesn't?

§     Amount of kindling

§     Condition of fuel

 Use more kindling; use smaller, dry wood

Does the fuel ignite but not burn well?

§     Condition of fuel

§     Draft problem

Use well seasoned wood and sufficient amount; turn exhaust fans off; open window slightly

 

2. I smell smoke in the house during operation, what’s causing that?

Questions

Causes

Solutions

Do fires start and burn well?

No:

§     Damper not fully open

§     Chimney obstruction

§     Not enough kindling and/or fuel to establish draft inadequate combustion air

 

Yes:

§     Fire too close to front

§     Competition with exhaust devices

No:

Open damper; check and clean chimney if needed; use adequate kindling and fuel; open air controls on glass doors or open window, check for need of balanced air makeup

 

 

Yes:

Build fire farther back; don’t use house exhaust fans during startup and/or check for need of balanced air makeup system

  

3. I smell smoke in the house after we’ve had a fire. What is the cause/what can we do?

Questions

Causes

Solutions

Is the damper closed?

No:

§     Downdraft of negative pressure

 

Yes:

§    Negative pressure from exhaust fans and/or house stack effect

No:

Close damper at end of burn

 

Yes:

Check for need of glass doors or balanced air makeup system or raising chimney

 

Is the chimney clean?

No:

§     Creosote odor

 

Yes:

§    Damper closed too early

No:

Have chimney cleaned

 

Yes:

Wait until fires completely out before closing damper

 

4. I don’t get enough/any heat from the fireplace. What can I do about it?

Questions

Causes

Solutions

How much wood is used for fire?

Insufficient fuel

Make larger fires

Do you have a blower (where possible)?

Yes:

§     Turning blower on too early or set too high cooling firebox

No:

§     Need for all heat boosts possible

Yes:

Wait until fire established and leave on lower speed

 

No:

Add blower if available

How much heat output do you expect?

§     Unrealistic expectations

Explanation of decorative nature of fireplace; suggestion of approved fireplace insert

 

5. The fireplace burns wood too fast. What can I do?

Questions

Causes

Solutions

Do you have glass doors?

§     Need to slow the air intake

Add glass doors; use air controls on glass doors

What is the condition of wood?

§     Extremely dry wood

Mix in less seasoned wood after fire established

* Information provided by the Hearth, Patio & Barbecue Association

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