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weekender october 12 1985 p17 dos and donts of chimney installation every householder knows that regular service and maintenance of heating equipment is the key to economy and safety what is easy to forget is that the chimney is a critical component whether you heat with oil natural gas or wood take a look at the following checklist if your chimney or your maintenance practices do not furnace does need regular checkup just like a car or any other mechanical device your oil fur nace needs to be checked regular ly a knowledgeable heating pro fessional should clean and service your furnace at least once a year to ensure safety reliability and efficiency a thorough cleaning and tuning operation will take one to two hours and involve the partial dis assembly of your furnace and oil burner the internal heat exchan ger flue pipe and lower chimney surfaces should be brushed and vacuumed to remove soot and de bris corroded or damaged flue pipes should be replaced im mediately moving parts such as dampers need to be lubricated and belts need to be cleaned and tested the entire system from the fuel tank oil filter to the nozzle should be inspected cleaned adjusted and where necessary parts should be replaced your serviceman should use re placement nozzles certified by the canadian standards association csa make sure that the oil spray pattern and oil flow mea sured in gallons per hour are compatible with the rating de scribed on the name plate of the furnace the condition of the ductwork can affect furnace efficiency re circulating air needs a clear path for its return to the furnace for reheating the duct system should allow for adequate circula tion and registers should never be obstructed an open or loose panel on the furnace casing will draw cool basement air into the system and may even be a safety hazard warm air ducts should be insu lated especially where they pass through unheated spaces or into exterior walls the joints in the ductwork can be taped with spe cial duct tape to reduce the loss of warm air but remember to wash them first otherwise the tape wont stick if you have any questions about furnace maintenance your ser viceman is a reliable source of in formation another option is the tollfree heatline 1-800-267- 9563 where free advice is always available on any energyrelated topic dont let it get hot a stack thermometer on the flue pipe is the easiest way to keep track of how the fire is burning in your wood stove look for the type with a metal probe rather than the magnetic type and insert it in the flue pipe between 30 cm and 60 cm above the flue collar for the best performance the flue temperature should not ex ceed 330c or fall below 1 10c dur ing normal operation match this profile seek advice from a qualified professional all chimneys must be installed with safe clearances to combusti ble building components and materials e for safety and long life the chimney should be properly sized ideally it should be the same size as the flue pipe that conects it to the heating appliance multiple connections to the same chimney can be dangerous never connect two or more heat ing appliances to a single chim ney without an inspection by the appropriate authority in our area a chimney located inside a house will perform better and re quire less maintenance than one located outside masonry chim neys with surfaces exposed both outside and inside have the greatest loss of heat adequate clearance contact your local building inspector from the roof and nearby obstruc tions is essential to good perform ance as air turbulence creates uneven chimney draft regular inspections are a must no matter what fuel you use you should check for loose mortar be tween the bricks rust sulphur or creosote stains on the chimney surface or loose bricks at the bot tom of the chimney ensure that the support brackets on a metal chimney the sparks screen and the chimney flashing on the roof are in good condition and operat ing properly chimneys should be cleaned when creosote builds up to 6mm chimneys serving oil or gas ap pliances should be checked once a year or more often if convenient chimneys venting wood heating appliances need even closer attention especially in the spring and fall when cool or smouldering fires can accelerate dangerous creosote buildup on a chimneys inner surface remember that a chimney is an important part of any heating sys tem the failure of a poorly main tained or installed chimney can have severe consequences for you and your home howa 2plastic pipe can gweyou the energy to cut your heating costs in half if youre tired of paying the high cost of heating your home with oil switch to a high efficiency cleanburn ing gas furnace these state of the art furnaces are so technically advanced they can actually cut your heating cost in half compared to conventional oil furnaces how easy installation its so easy to convert to a high efficiency gas furnace that once your gas service is installed you can be on oil at breakfast on gas at dinner just think in one day you can break the expensive oil habit and be on your way to saving 50 and more on your heating costs we can prove it we can show you in dollars and cents how much you could save simply giveus your approxi mate oil heating costs for the last full year and well prepare a free computer analysis that tells you how much a high efficiency gas furnace can save you year by year for the next 15 years youll see what you can save over oil and electricity before you switch savings that are guaranteed we know we can save you money so we guarantee it in writ ing switch to a high efficiency gas furnace or any other natural gas heating system and if after one year of operation you havent saved on energy costs well replace your natural gas system with a new oil furnace plus a new tank at no cost call your authorized gas company dealer or us for the complete details a high efficiency gas furnace- uses a system of heat exchangers to catch the heat that a conven tional oil furnace lets escape up your chimney this extra heat is then used to heat the house and the remain ing exhaust is vented via a 2 inch plastic pipe so theres almost no waste in fact a high efficiency condens ing furnace operates above 90 efficiency compared to 65 for conventional oil furnaces this coupled with the low cost of nat ural gas is how you can save 50 and more on your oil heating costs 8aadw0c0ksltfiiyfbou2momhnksawcavlrcktf0rul0aat383ta savngs shown ar ftasco upon cawalortratm am uamttnanct costs assimstqualcmshutdamrmioimciiouseanoflctffctncsof wsmohflclnorgas 6sconrtni10nalcas6sc0nil0nalo consumers gas