There are two main types of dryers: those heated by electricity and those fueled by natural gas. Cost comparisons for running the different models are difficult to make since gas and electricity prices vary from utility to utility: what is the cheaper system in one region may be the costliest in another.

Some people favor electric models on the grounds that gas dryers can leak combustion by products, such as carbon monoxide, into your home. If you have a gas dryer, and are concerned about possible leaks of carbon monoxide, which is odorless and toxic, you can get peace of mind, and assure your general safety; by purchasing a home detector.

But first and foremost, have your dryer (as well as any other fuel burning appliances) inspected annually by a professional. Gas authorities point out that dryers that are professionally serviced according to the maintenance schedule should not leak gas. Any work related to the appliance, replacing connectors for example, should be done professionally.

Never attempt such work yourself.

Current research indicates that people need not be concerned about the electromagnetic field (EMF) surrounding their electric dryer, nor do they need take any special precaution to avoid exposure when the machine is operating. First of all, studies have not proved that EMFs cause diseases or other health problems. Secondly the EMF surrounding the device rapidly decreases as you move away from the source. If you are still unsure, simply minimize your exposure to the electric dryer while it is running.

Dry safely

- Your dryer should be vented outdoors. If the exhaust duct empties indoors, it will spew tiny pieces of lint into the air. These particles may cause breathing problems for some household members.

- Periodically check exhaust ducts for tears, and either repair a damaged area with duct tape or replace it. Metal ducts are preferable to ribbed plastic hose, which can be easily bent and so collect lint.

- Prevent lint buildup (the cause of more than 4,000 fires annually in North America) by cleaning the filter after each use. In the case of electric models, unplug the machine once or twice a year, remove the service panel, and gently vacuum the lint catcher and internal workings, as well as the dryer's base, with a crevice attachment. Apart from cleaning the filter after each use, cleaning or removing lint or dust from the mechanical areas of your gas dryer should be left to the technician who carries out your regular maintenance.

- Never put plastic, rubber, or foam materials in the dryer. They may melt or catch fire. Oil soaked fabrics may also catch fire.

- Prohibit children from crawling into the clothes dryer. If a youngster pulls the door shut from inside, he or she may suffocate.

Lock the laundry room door when you are not there. Cats also find the inside of dryers appealing, so if you have a feline, remember to check the dryer each time before turning it on.

Anyone who has needed to wash and quickly dry a favorite blouse or shirt for a last minute engagement or party doesn't have to be reminded about the convenience of an automatic dryer. Most Canadian families couldn't function well without one. But because these machines are a fact of life for so many of us, it's easy to forget that they are powerful appliances that can pose a health risk if not installed and maintained properly.