Cold Weather is Here Again!

            Once again, the weather has turned and cooler temperatures are starting to become the norm.  With the arrival of cold weather comes the use of heat producing appliances to keep our homes and businesses warm.  If you haven’t already done so, it is recommended that you engage a reputable heating and air conditioning company to service your furnace or heat pump and make sure that it is working properly before the really cold weather settles in.  For those of you that undertake that job personally, there are a few things that you should bear in mind.  When you take the service access panels off, be prepared to clean the motor and blower thoroughly.  Use a brush (a paint brush works fine) to clean inside the air openings of the motor and blower louvers.  Once you’ve dusted the air handling section, use the blower end of a shop vac (if available) to blow all of the dust out of the air handler.  If you don’t have a shop vac, use a standard vacuum cleaner and suck out as much dust as possible.  Lint and dirt buildup can burn and help to spread a fire, particularly if the furnace is started, allowed to operate, and service ignored for several seasons.  With heat pumps, air has to be able to flow freely through the inside and outside coils and therefore, has to be free of and any trash and debris that might have accumulated during the summer.  As with gas fired units, the air handler also has be cleaned and kept free of dust and lint.  Air filters should be replaced at the beginning of each heating (and cooling) season and inspected at least once per month.  Filters should be replaced when you can’t see through the media.  If you can’t see through the filter media, then air is being restricted enough to affect the heating (and cooling) capacity. 

            Aside from standard heating units, there are those that use kerosene or propane gas heaters.  In addition to a through cleaning, care must be taken to remember that small, fuel burning, space heaters and some gas log appliances are NOT VENTED.  As a result, they will produce CARBON MONOXIDE, a deadly, toxic gas.  Since these appliances are not vented, carbon monoxide is released into the space being heated.  DO NOT go to sleep with one of these types of appliances in operation.  Death from asphyxiation is a likely result.  Symptoms of carbon monoxide poisoning include headache, nausea, and vomiting.  Victims of carbon monoxide poisoning should be evacuated to the outdoors as quickly as possible while awaiting ambulance service.  Moreover, if you have to use a portable generator because of a power outage, remember, the danger of carbon monoxide poisoning is still present if the generator is operating inside the home or garage.  If using a small electric heater, a through cleaning is also required.  The main thing to remember when using space heaters, whether fuel burning or electric, is to keep them far enough away from combustible materials.  The heaters usually come with operating instructions that discuss how far from combustible material the heater can be placed.  However, the operating instructions are usually misplaced, discarded, or lost.  If you can’t remember how far away to place a heater, generally, a three foot distance is usually far enough away to keep most combustible material cool enough to keep it from igniting.  However, if the material feels too warm at a three foot distance, then move the heater back to increase the distance until the material feels cool.  USE COMMON SENSE! 

It’s Wintertime!!!

 

Now that Christmas is over and the unusually warm weather sweeping the country is gone, it is time to take some precautions against the effects of cold weather.  Actually, it’s past time.  As silly as it sounds, having your furnace or chimney checked and prepared for winter is something that should have been done in the fall, while the weather was comfortable.  If you’ve procrastinated and put off doing what should have been done months ago, then you might have somewhat of an uphill struggle depending on your part of the country.  In any case, gas and oil furnaces and chimneys should be checked to make sure that carbon monoxide won’t be a problem.  Electric furnaces should also be checked to make sure that all high voltage wiring is in good condition and won’t be a problem later on.  All heating equipment should be cleaned and the air filters replaced at least on a yearly basis.  In addition, gas piping should be inspected for leaks.  Fires and explosions from leaking gas lines seem to be making headlines more often these days.  If you smell gas and know where to turn the main gas valve off – DO IT; then call the gas utility company and report the problem.  Otherwise get out of your building, get a safe distance away, such as across the street or further if need be; call the gas utility and report a problem.  Lastly, don’t hesitate to call 911 and request fire department assistance.  Remember, it’s better to have the fire department on the scene and prepared for an emergency if nothing happens rather than not have emergency assistance if a fire or explosion occurs.  At this time of year, many people will also use portable kerosene and oil filled electric heaters.  These types of heaters must be used with an abundance of caution.  These heaters are typically used inside homes and small spaces.  These heaters also have strict distance requirements and must be kept away from combustible material.  Moreover, small children must be kept away from these heaters while in operation because of the potential burn hazard.  Furthermore, if heat tapes are in use, be sure they are in good condition and are heating water lines as intended.  Be sure that the tapes or wraps are not in contact with combustible material.  If using pipe insulation, be sure that the insulation covers all exposed piping that is subjected to subfreezing temperatures.  Moreover, if your house is on a crawlspace, don’t forget to close the vents on the exterior sides as leaving them open will cause the interior to lose heat and the HVAC unit to run longer than necessary.

Christmas and Safety

Christmas is fast approaching and so is winter. Although it is cold in many parts of the country not everyone has begun using their heating appliances on a regular basis. Instead, every year people resort to using small free-standing heaters to warm a room. From a fire investigation standpoint, I’ve already encountered two instances where small space heaters have been suspected as being the cause of a fire. Small space heaters are not necessarily defective and inherently dangerous if used properly. If the instructions say to keep the unit a certain distance away from combustible material, then, it is imperative that the minimum distance be maintained. The trouble is that consumers have a tendency to forget about that distance. Even more troubling is the fact that consumers will operate a small heater all night and unattended when that is clearly not the manufacturer’s intention. Remember that warm spot on the corner of the sofa that was created when the heater was turned on? After several hours, that warm spot can turn into a hot spot and then a point of ignition; all because the heater should not have been left on. That scenario prompts a question: can the heater be left on all night if the heater is sufficiently far away from all combustible material? The short answer is no. Anything that could knock the heater over might cause a fire. Most small heaters are equipped with a tip switch that turns the heater off in the event that the unit is tipped over. However, even though the power is off, that doesn’t mean that whatever the heater is resting on won’t ignite because of the residual heat emitted by the heater until it cools. The same rules apply to the use of kerosene heaters. In the case of kerosene heaters however, there is a steady production of carbon monoxide as the kerosene is burned. People with breathing difficulties can be severely affected. If a unit is allowed to burn all night, the risk that occurs is that there will come a point where the kerosene level will be low enough to produce soot instead of heat. So, in either case, whether using an electric or kerosene heater, it is best not leave them on and unattended during the night.

Hopefully, this reminder will help someone avoid a disastrous holiday season.

Merry Christmas and Happy New Year everyone!