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Friday, January 10, 2020

Cut utility bills by using wood-heating appliances



A good way to cut utility bills during cold weather is to use a wood-fired heating appliance such as a masonry heater, wood-burning stove, or wood-burning fireplace insert.  

Today’s modern wood-burning heating appliances are very efficient and clean-burning, unlike their older predecessors. The Environmental Protection Agency regulates wood stove emissions and has strict requirements that stove manufacturers must follow. This is why replacing an older, dirty-burning wood stove is good not only for the environment but good for the pocketbook because less wood is needed to produce the same amount of heat as older stoves.

Fuel costs can be significantly less than oil, gas, or electric heating appliances, especially if there is a nearby supply of inexpensive cordwood. For homeowners with their own land and trees, the concept of no cost for fuel other than physical exertion is very attractive. For those wanting to live off-grid, have an emergency heating alternative, or just lower fuel costs, the addition of a wood-burning appliance is a good solution.

A soapstone heater by Tulikivi
Masonry heaters are arguably the best type of wood-burning  
appliance. They use old-world technology consisting of a large mass of masonry and a series of channels installed inside the appliance that trap heat, then transfer the heat slowly through the masonry. Masonry heaters are large and need to be centrally located for maximum benefit. The Masonry Heater Association of North America recommends that a Certified Heater Mason construct a masonry heater since he/she has taken specialized training on this unique appliance.  There are also pre-made kits available through such companies as Tulikivi, but these need to be built by trained experts. The MHA has more information on these efficient site-built appliances on their website at www.mha-net.org

Fireplace insert by Regency
Fireplace inserts are appliances that are installed inside an existing masonry fireplace. They use a small stainless steel flue liner and can be used either with or without a blower. By installing a new EPA approved efficient wood-burning fireplace insert the fireplace efficiency will be increased by approximately 75%.

Freestanding wood-burning stoves are also very efficient and clean–burning. They work by emitting radiant and convective heat and are best situated in a central location in the home. A stove can be installed in any room with the proper floor and wall protection. A wood stove installed in a basement can provide needed warmth in a cold area, and since heat rises - the floors above will be heated as well.
Freestanding stove by Hearthstone


As far as chimneys go, a Class A stainless steel chimney can be used to vent gasses, or an existing masonry chimney may be used with a stainless steel liner installed.  A professional installer will know which type of flue liner or chimney to use with a particular appliance.

The Midwest Chimney Safety Council suggests hiring a professional to do any type of wood-fueled appliance installation. In some areas, it is a code requirement to have a licensed professional install a wood-burning appliance.  The National Fireplace Institute has a list of NFI Certified wood-burning specialists on their website, and the Chimney Safety Institute of America has a searchable database of CSIA Certified Chimney Sweeps.                                                                                                                     
For more information on fuel cost calculators visit http://www.epa.gov/burnwise/woodstoves.html     
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Marge Padgitt is a chimney industry veteran, author, and publisher living in Kansas City, Missouri. Visit her website at www.chimkc.com.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       


Keep wood stoves in good working order for the winter season



Wood-burning insert by Regency
(available at www.chimkc.com)
Wood stoves and inserts can be a great way to heat a home during winter months but problems can develop if they are not properly maintained on a regular basis. Unlike gas, electric, or oil heating appliances, wood stoves need attention more often than once per year in order to function properly.

Wood burning stoves and fireplace inserts are designed to keep most of the heat inside the home, rather than allowing heat to escape up the flue as a regular open fireplace does. However, not all wood-burning appliances are the same. Older models are much less efficient and produce more emissions that pollute the environment. The basic difference between newer and older models is the baffle system and secondary burn chamber, which in new models burn more of the flammable gasses. According to the Hearth, Patio, and Barbeque Association, pre-EPA approved stoves should be changed out to newer EPA approved and U.L. listed stoves for better efficiency and cleaner burning, which is better for the environment.

Woodstove owners should first learn how to properly operate the appliance by reading the manual or asking their chimney sweep. By loading the proper amount of cordwood and adjusting the combustion air inlet to achieve a hot-burning fire, the stove will operate according to expectations. Hot fires are more efficient. Next, the chimney flue and pipe connector need to be clear of debris which may include bird nests, leaves, twigs, or creosote in order for the stove to draft properly. The stove connector and flue should be cleaned out at least twice during the burning season because accumulated creosote on the flue walls reduces draft.

Flue liner with burnt creosote that has
been on fire
Expanded or burnt creosote which occurs during a chimney fire can completely block off a flue and cause smoke to back up into the home. If this occurs suddenly the stove operator should shut down the air intake and get out of the house, then call the fire department even if flames are not visible on the exterior chimney.  Regular maintenance by a professional chimney sweep will reduce the risk of a chimney fire. According to the Midwest Chimney Safety Council, all types of wood create creosote, so there is no way to avoid it, however, creosote reduction is possible by the use of a chemical such as Ant-Creo-Soot before each burn cycle, and proper operation of the stove.

For more information visit www.chimkc.com.

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Marge Padgitt is a chimney industry veteran and writer living in Kansas City, Missouri. Contact her at hearthmastersboss@gmail.com or through www.chimkc.com