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Efficient oil heating If you plan to continue heating with oil the first thing you should do is con- sult a knowledgeable heat- ing professional. There are many opportunities to re- duce the cost of oil heating, but a complete assessment of the condition of your furnace is necessary to allow you to make sound decisions. This professional should already be visiting you at least once a year. Ev- ery oil furnace requires an annual cleaning and servic- ing to ensure safety, reliabil- ity and combustion efficien- cy. For many of the ques- tions posed below, the serviceman is your most reli- able source of information. Has your oil furnace had a tune-up lately? A thorough cleaning and tuning operation will take one to two hours and involve the partial disassem- bly of your furnace and oil burner. Internal heat ex- changer, flue pipe and lower chimney surfaces should be brushed and vacuumed to re- move soot and debris. Mov- ing parts such as dampers need to be lubricated, belts should be tightened. Clean and test safety controls. The entire system, from the fuel tank oil filter to the nozzle that mixes fuel with air for combustion should be in- spected, cleaned, adjusted and, where necessary, parts should be replaced. Properly done, this cleaning and tun- ing can increase furnace effi- ciency by 10 to 20 per cent, depending on the condition of the furnace beforehand. Did the service mechanic ing cycle, extracting more do an efficiency test? heat from the furnace and With modem in- circulating it into the liv- struments, an oil furnace ing space. A continuous or efficiency rating can be pro- two-speed fan is some- duced in minutes. In fact, times effective in dis- testing for efficiency both tributing heat more evenly before and after tuning can from a wood-fired space give you a precise measure heater or south-facing of improvement. Beware of windows. any "expert" who scorns the @ A delayed action solenoid use of test equipment or tries valve fitted between the to convince you that high oil supply pump and efficiency can be. achieved burner nozzle delays oil or measured by looking at flow to the nozzle until the the colour of the flame in the pump reaches full operat- combustion chamber. If you ing pressure and the com- wish to alter or retrofit your bustion air fan reaches full oil furnace for greater effi- speed. On both startup and ciency a reasonable measure shutdown the solenoid of your potential fue! sav- valve reduces the release ings is very important. of unburned oil into the Does inspection and testing combustion chamber. indicate that any of the This reduces soot buildup following tuning or retrofit and keeps the nozzle measures make sense? clean, both of which help © Downsizing the oil spray to maintain the furnace's nozzle may allow a closer efficiency. match of your furnace's ® Retention head burners heat production with your produce a turbulent flow home's heat needs. Most of combustion air, mixing furnaces are oversized and the oil and air more com- home reinsulation and pletely for better combus- lowered thermostat set- tion. This is a more ex- tings can make this worse. pensive option than the A smaller nozzle allows other measures listed but less oil into the combus- provides significant fuel tion chamber, reducing savings. An older or un- the heat output of the fur- reliable burner should be nace. If your furnace replaced by the highest clicks on for short periods efficiency burner avail- of time even in cold able. This will often be a weather. downsizing retention head unit or should be possible and some similar variation. will save fuel. ®@ Ductwork can be a hidden '® The circulating fan in your culprit when efficiency is furnace delivers heated air considered. For example. into your house. Some- heated air needs a clear times this fan can be reset path for its return to the to run longer on each heat- furnace for reheating. The stalled in the hot air plenum above the furnace's combus- tion chamber. Electricity can be used when heating loads are light, while oil pro- vides the bulk of heat during the coldest weather. This maximizes the advantages of both. Wood is an economical option in many parts of Canada. A two-speed fan can help distribute heat from a wood-fired space heater. A more ambitious approach is the installation of a CSA- certified add-on wood fur- nace, or the replacement of The 94% to 97% efficient Amana Energy Command™ furnace 257 YONGE ST., traps the heat others lose! Aa A"NEW DEAL" ON HIGH HOME HEATING BILLS. The great, new as a Hydro-Pulse™ gas #f boiler can reduce them 30% or more. This revolutionary new heating unit, made by Hydrotherm, Inc., uses no burner, no pilot ; : light, needs no flue, no chimney. It operates on the pulse combustion principle, which uses : natural gas much more efficiently than conven- : aay tional boilers. This means heating bills can be reduced 30% or more. If you're in a depres- sion over high home heating costs, call us to learn more about Hydro-Pulse. Hydrotherm*' has certified this contractor for Hydro-Pulse installation and service. os OS XR "Sli: sea% TYPICAL Oj BORNE the entire furnace with a new combination wood-oil unit duct system should allow heated spaces or into exte- Householders displacing 50 for adequate circulation, rior walls. per cent or more of their oil and registers should never Have you considered your consumption in these ways be obstructed. An open or dual-fuel options? are eligible for grant assis- loose panel on the furnace It is possible to save tance from the Canada Oil casing will draw cool heating dollars by combin- Substitution Program basement air into the sys- ing another heat source with (COSP), funded by Energy, tem, making the furnace oil. Electric plenum heaters Mines and _ Resources work harder. Warm air are one good example. Ple- Canada (EMR). Consult ducts can be profitably in- num heaters are electric re- your EMR regional office or sulated, especially when sistance elements and a con- local utility for more they pass through un- trol system, which are in- information. A MINI-METRICS A MINI-METRICS A MINI-METRICS Most pies are baked at Normal room temper- Normal body temper- 220°C (425°F). ature is 20°C. ature is 37°C. NC NC NC Ay MINI-METRICS Av = MINI-METRICS Ay MINI-METRICS Roast pork in an oven If the temperature is 1 gisabout the weight set at 160°C (325°F) -30°C, it's a really of a paper clip for 65 to 75 min/kg. cold day. NC NC NC In an ordinary furnace, you only get 62¢ of heat for every dollar of gas you buy. The rest goes up the chimney. But the Energy Command furnace gives you 94-97¢ of heat for every dollar. With the optional water heater it can deliver 2-212 times more hot water than ordinary water heaters! Start saving today! Call: PLUMBING & HEATING LIMITED MIDLAND, ONT. 526-8811 WES CLARKE JACK McDONALD 2) Uji _£D WALKER'S ELECTRIC ir. UVE BETTER "craich™ ELECTRICAL CONTRACTING (24 hr emergency service) a - industrial - commercial - residential - Marine At Walker's Electric we have the years of experience and knowledge to service and plan commercial and industrial requirements to suit your individual needs. Phone (1-705) 526-7825 WALKER'S ELECTRIC LTD. Midland, OntarioL4R 4K6 P.0. Box 99 889 King Street Home Energy Guide 1984, Page B13