Hearth and Home Technologies ST42A owner manual fireplace burns the wood too fast. What can I do?

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

Diagnostic Questions		Possible Causes of Condition	Solutions
Do you have glass doors?	•	Need to slow air intake	Add glass doors.
What is the condition of the	•	Extremely dry wood	Mix in less seasoned wood after fi re established.
wood?

I smell smoke in the house during operation. What’s causing that?

Diagnostic Questions		Possible Causes of Condition	Solutions
Does the fi re start and burn	No:
well?	• Damper not fully open		Open damper; check and clean chimney if needed; use adequate
	•	Chimney obstruction	kindling and fuel; open glass doors or open window, check for
			need for balanced air make-up.
	•	Not enough kindling and/or fuel to establish
		draft
	•	Inadequate combustion air
	Yes:
	•	Fire too close to front	Build fi re farther back. Do not use exhaust fans during startup
	•	Competition with exhaust devices	and/or check for need for balanced air make-up system.

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

Diagnostic Questions		Possible Causes of Condition	Solutions
Is the damper closed?	• No: Downdraft or negative pressure		Close the damper at end of burn.
	•	Yes: Negative pressure from exhaust fans	Check for need for glass doors. Check for need for balanced air
		and/or house stack effect.	make-up system or raising chimney.
Is the chimney clean?	• No: Creosote odor		Have chimney cleaned.
	•	Yes: Damper closed too early	Wait until fi re completely out before closing damper.

32 Heatilator • ST42A • 35038 Rev G • 02/05