Nature's Comfort NC-40 Installation And Operation Manual - page 19
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Disposal Of Ashes
Ashes should be placed in a metal container with a tight fitting lid and moved outdoors immediately. Other waste shall not
be placed in this container. The closed container of ashes should be placed on a non-combustible floor or on the ground,
well away from all combustible materials pending final disposal. If the ashes are disposed of by burial in soil or otherwise
locally dispensed, they should be retained in the closed container until all cinders have been thoroughly cooled.
The ash content of the fuel and operation of your stove will directly determine the frequency of cleaning. The use of high
ash fuels may result in the stove needing to be cleaned daily. A low ash fuel may allow longer intervals between cleaning.
Clinker Cleaning
Clinkers are silica (sand) or other impurities in the fuel that will form a hard mass during the burning process. This hard
mass will block the airflow through the burn pot and affect the performance of the stove. Any fuel, even approved types,
may tend to clinker. Check the burn pot daily to ensure that the holes are not blocked with clinkers, especially if using
“weekly” mode on the controller. If they become blocked, remove the burn pot (when the unit is cold) and clean/scrape
the clinkers out. Clean the holes with a small pointed object if required.
Soot and Creosote
Soot or creosote may accumulate when the stove is operated under incorrect conditions such as an extremely rich burn
(black tipped lazy orange flames). Do not operate the stove if the flame becomes dark or sooty or if the burn pot overfills
with pellets. Use a better quality pellet and/or clean the stove if soot or creosote develops or becomes a problem. Turn
the stove off and call your dealer to discuss your installation and the fuel you are using if needed. Check the venting
system at least twice a year for creosote buildup and clean to reduce the risk of a chimney fire if a layer of 3mm or more
is present.
Daily Cleaning
Remove material that has accumulated in the burn pot using a metal scraper and a poker for material that is clogging the
burn pot
’s holes. Dispose of the scraped ashes from the burn pot and from inside the frame the burn pot sits on into the
ash pan to ensure proper air flow through the burn pot.
Clean the heat exchanger tubes. Operate the heat exchanger wiper rod back and forth 2-4 times
(6” of travel) in order to
clean away any fly ash that may have collected on the heat exchanger tubes. To understand how this works, open the
viewing door and look up at the heat exchanger while operating the wiper bracket. (The air deflector plate can be easily
removed for better viewing and/or a more thorough cleaning with a brush.)
Weekly Cleaning
Clean the burn pot weekly. Shut the unit down and allow it to completely cool. Take out burn pot, remove ashes and clean
holes. Vacuum any ashes that have accumulated in box underneath burn pot. Empty the ash drawer. Anytime ashes are
removed from the stove they should be placed in a non-combustible container with an airtight lid and should always be
placed on a non-combustible surface or on the ground until completely cooled and free of hot cinders before being
disposed of.
Monthly Cleaning
Shut the unit down and allow it to completely cool down. Perform daily and weekly cleaning procedures. Thoroughly
clean all ash from all areas including but not limited to the combustion chamber, combustion gas exit ports on either side
of the heat exchanger tubes, the heat exchanger tube area, the air channel behind the combustion chamber, the exhaust
blower collection box and all venting.
Glass
Keep glass clean for better viewing and heat radiation. Once cool, clean the door glass and doorframe with a soft, wet
cloth and mild cleanser daily. Do not use abrasive cleaners or attempt to open the door and clean the glass while the
unit is in operation or if glass is hot. Use a soft cotton cloth and mild window cleaner, wood stove glass cleaner, or take a
damp paper towel and dip into the fly ash. This is a very mild abrasive and will not damage the glass. Surface scratches