Lennox Hearth T300P Routine Maintenance, Routine Cleaning, Ash Pan, UltraGrate BURN GRATE

ROUTINE MAINTENANCE

*Inspect your stove or insert at minimum frequency stated until you establish a minimum frequency required for your installation (frequency will vary depending upon fuel BTU value / ash content, usage, and misc. installation variables).

ROUTINE CLEANING		ASH PAN
Note: Stove will need to be shut off and cooled enough to		The ash pan will have to be emptied periodically, de-
handle before routine cleaning is performed.		pending on amount of fuel consumed. The T300P Series
Always disconnect power before doing any routine clean-		ash pan is pulled straight out using the black pull knob
ing.		located on the front of the ash pan (see following pic-
The following areas need to be inspected and cleaned		ture).
during routine cleaning:		Ash Pan
• UltraGrate (burn grate)
•	Ash Slide Plate
•	Ash Pan
•	Heat Exchange Tubes
•	Photoeye
• Exhaust Passages and Vent Pipe
•	Gaskets
•	Window Wash
•	Rear Stove Compartment
UltraGrate (BURN GRATE)
The UltraGrate should be inspected periodically to as-
sure that the air holes have not become clogged with ash
or clinkers. The UltraGrate can easily be cleaned with
the grate scraper / ash pan tool, or it can be removed for
cleaning. It is very important to monitor the ash build up
under the UltraGrate, as excessive amounts of ash will
block combustion air from entering the grate, causing		* (Recommended Frequency of 2 days – 2 weeks)
pellets to pile-up in the grate. The ash build-up under the
grate is easily dumped into the ash pan by pulling out the		ASH SLIDE PLATE
ash slide weekly as shown below. The grate cleaning
procedure is the same for all models.		Ash that accumulates around the grate can be “dropped”
		into the ash pan without opening the firebox door. Simply
	UltraGrate	pull open the ash release slide plate as shown in photo
		using the grate scraper tool provided. Remove the ash

pan as shown. Note: Make sure to fully close the plates when finished. Failure to close the ash release slide plates completely may cause the fuel to burn poorly (due to reduced airflow through the grate), which may then cause pellets to “pile up” in the grate.

Ash Slide Plate

* (Recommended Frequency of 1 day – 2 weeks)

*(Recommended Frequency of 1 day – 2 weeks.)

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