Home Heating Options: 2007
By Gil Strachan
“Baby, it s cold outside.”
Home heating costs have doubled over the past ten years, now representing 60% of the energy spent in Canadian homes. No one can predict how high fuel costs will go, however we can be certain of one thing - the costs will go up. It s anyone s guess which fuel might be the better bargain in ten or twenty years, so it s tough to shop for a heating system today without wondering if you ve made the right decision. Although we can t tell you which choice to make, we can show you how the different fuels compare today.
Oil
Oil prices can be unpredictable however fuel oil provides good energy content, with efficiency ratings up to 86% with modern equipment. If you decide to upgrade your furnace or boiler, you will also need to install a stainless steel liner in your chimney. Older oil burners can be fitted with a “flame retention head” to improve efficiency, and regular tune-ups will also go a long way toward lowering your fuel costs. Decorative oil-fired stoves and fireplaces are available for space heating, and will work without electricity. Oil-fired hot water tanks can heat water quickly and are often used for in-floor heating, as well as hybrid hot water forced-air systems.
Don t heat with oil if you feel guilty about burning non-renewable resources, or if you can t afford unpredictable costs. A central system will require ductwork or water piping, as well as a fuel oil storage tank. Oil furnaces are priced lower than gas furnaces and enjoy on average, a longer lifespan.
Natural Gas and Propane
Gas and propane are cleaner than fuel oil and provide odourless heat with slightly lower energy content than oil. Gas prices are higher than they once were, and the cost of heating with propane is even higher. There is a greater availability of natural gas in more densely populated areas, whereas propane is more often the choice in rural locales where it is compressed and delivered by truck.
Both gases are popular choices for fireplaces, space heaters and hot water tanks, are clean and more convenient than wood-burning fireplaces however, are about 25% less efficient than a gas furnace. If you re considering one of these high-priced fuels, shop for an appliance that will provide the best return on your investment. Always compare installed prices, energy-efficiency ratings and warranties. As with oil-fired equipment, ductwork or water piping will be required. Modern appliances vent directly to the outdoors without need for a chimney.
Don t heat with propane unless you have deep pockets, if you feel guilty about burning a petroleum product or if you don t want to see a submarine-sized cylinder beside your house.
Electricity
Electricity is 100% efficient. Every ounce of power leaving your electric panel is turned into heat at the furnace or space heater, with no line loss and nothing wasted up a chimney or out a vent. Electricity can be more expensive per unit of heat developed, however the cost of installation is lower than with fuel-fired heating equipment.
Although the equipment in your house may be 100% efficient, electricity isn t any greener than gas, oil or propane in fact the electricity you use may come from a coal-burning power plant. Electric heat pumps are very efficient in more southerly latitudes, however provide marginal benefit in northern areas where temperatures are too low to extract heat from outside air, and a backup furnace is required. Unlike electric furnaces or space heaters, heat pump installations can be cost-prohibitive and the lifespan of the equipment is relatively short.
Don t heat with electricity if you don t want to support the operation of big power plants and other mega-power projects.
Wood
If you live in a well-treed rural area, heating with wood can be a sensible choice. Wood is the cheapest of all fuels (you can save as much as 70%) and is a renewable resource - however not without drawbacks. Wood smoke can be a nasty source of air pollution unless you dig deeper in your pockets and purchase a high efficiency stove they run up to about 75% efficiency when used properly. Wood-burning furnaces rarely exceed 50% efficiency, and with much higher emissions.
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Other Considerations:
The size, design and insulating value of your home will have direct impact upon your heating costs. Modern, well-insulated, air-tight homes have much lower heat loss, and therefore require less fuel to maintain comfortable indoor temperatures. The new generation of “smart houses” require so little heat provision that it may not matter which fuel you use - because you ll use hardly any of it.
Setting thermostats lower will reduce costs. Zone-controlled heating systems, and space heaters can also save a bundle… it doesn t make much sense to overheat your entire house in an effort to make one person warm, in one corner of the basement.
Gil Strachan is a certified home inspector representing Electrospec Home Inspection Services in east-central Ontario, Canada. For more information about houses and home inspections visit http://www.allaroundthehouse.com
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