How Often Do We Need To Have Our Furnaces Cleaned

For those people who live in area's of the country that gets cold, it's time to think about your heating equipment. With the technology new furnaces have today there isn't much to do on them as far as setting them up for winter. In the old days (10 years ago and before) we were told to have our furnaces and boilers checked once a year. But now furnaces and boilers have electronics doing most of the work. There are only a couple of things that a service tech needs to do in today's furnaces and boilers as far as a "clean and check" goes.

The old days:

In the old days when a service man (politically correct term today is "service tech" this term started about 21 years ago) when out on a "clean and check," he had all kinds of things to do. First he pulled out all the burners and blew them out with co2, then he checked the heat exchanger for cracks using a mirror, then vacuumed up any dirt he found. He also changed the "thermocouple" (on a standing pilot, where the pilot flame burns all the time, the thermocouple tells the gas valve there is a pilot light, and it's ok to open, and start the heat sequence) on the "pilot light" and blew out the pilot light assembly to make sure it would burn clean and that the pilot flame was positioned correctly on the thermocouple, and on the burner pilot runner.

After that he pulled the blower, and if it was a belt drive blower, oiled the squirrel cage bearings, motor bearings, and checked the belt for cracks . On a "direct drive blower" all he had to do was just oil the bearings on the motor.

Now all the burners are cleaned and the heat exchanger has been checked for cracks and everything is back in place, including the blower.On to the next step.

Now, if the service man was worth his salt, he checks the most important part of the furnace, the "limit switch". There's a limit switch in every; gas, oil, electric, or propane furnace, or boiler. It's main function is to turn on the blower (usually 200') and shut it off (around 110 or 100' any cooler, and you would feel like there was a draft) and the most important job it has is to tell the "gas valve" to shut down the burners incase the blower fails. It keeps the furnace or boiler (boilers also have a "safety relief valve" like hot water heaters) from over heating and starting a fire.

What the better guys did was pull the blower wire off the limit switch and start the furnace burners. With the blower wire pulled off the limit switch, the blower can't start, and when the furnaces gets to about 200 degrees, the burners should shut off and not relight again until the furnaces cools and lowers it's temperature to about 140 degrees. Some guys just checked the limit switch by rotating the dial on the limit switch and blower settings until the burners shut off. I liked taking the wire off the limit switch and testing it that way because it was more real life working conditions in the event of blower failure.

One of the last things, and just as important as checking the limit switch, was to check the "flue pipe" to make sure it, or the chimney, hasn't been blocked by soot or birds. It wasn't uncommon to find dead birds in the flue. Some even made it into people's basements. This doesn't happen anymore with the new furnaces. And the very last thing that was done was to check for gas leaks.

Furnaces 10 years ago to the present:

Today's furnaces and boilers don't need the kind of attention from the service man like furnaces of the past did. On most modern furnaces all that needs to be checked is the "flame sensor". The furnaces of today pretty much watch themselves. The burners almost never get dirty now a days because they are working in a mostly closed (80 plus furnaces are not, but the 90's are) environment. The blower, gas valve, and all the safety controls (including the "limit switch" and "blower switch") are run by a circuit board. The blowers are all sealed now too. They don't even need to be oiled!

So how often do we want our furnaces and boilers checked?

That's a tough question. It all depends on the environment your furnace is running in. It your furnace or boiler is running in an environment that has a lot of dust or animal hair, then it mite be worth it to have your furnace checked once a year. If your furnace is running in a relatively clean environment, you can probably get away with 2 or 3 years of not having to have to spend the money to have a clean furnace checked.

Don't forget that these new furnaces shut down when they spot the slightest problem. Some tech guys feel the only real time for home owners to have their furnaces ( don't forget where're talking new furnaces not the old clunkers) checked, is when they don't start. They don't think the cost justifies what your getting in return.

But in the end, it's the choice of the home owner to decide how often they have their heating equipment checked.

Jerry Quatrano is the proud owner of Addison Services who has 30 years experience in the Heating and A/C industry, and still likes to talk about it, along with selling great products at his site at addisonservices.com

If you found this information helpful, please consider purchasing one of our great products.

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Home Heating Choosing a New Furnace

As winter approaches, everyone begins to think about the furnace. Will in kick on? Will it last through another long, cold winter? Should we install a new furnace? If so, with what kind? If these questions are familiar to you, keep reading as we try to "demystify" a couple of household heating sources.

The most important step to take before starting the furnace for the season is to have it inspected by a licensed professional. They will clean the furnace, make sure it is in good working order, they will also recommend any parts that will need to be serviced or replaced in the near future.

If the furnace inspector tells you that it is time to replace the furnace, you may be overwhelmed by the choices in today's' furnace market. There are the standard gas, oil and electric furnaces as well as the newer outdoor wood furnaces and corn-fueled furnaces to name a few. There is lots of information available on these newer furnaces on the internet, however, a quick overview will be provided here.

One of the most popular options today is an outdoor heating source. It uses the old standby of wood, but eliminates the mess and smell associated with burning wood. An outdoor wood heating unit is placed approximately 500ft from the house. The wood burner itself is built inside of a small building, this often is made to look like a smaller house or shed. The heat is carried from the burner via heated water, which runs through underground, insulated pipes. This is the most effective and efficient method for moving heat over distances. Once the heated water reaches its destination, there are a couple of options for actually heating the home. Using a boiler, radiant floor heating system, a heat exchanger or a forced air furnace that is powered by a direct circulation system. The wood burning system can also do double duty to heat household water if a water-to-water heat exchanger is installed.

Although there are many advantages to using an outside wood burning furnace, it has a down side to its use as well. The cost can be quite high for most people, running approximately $5,000 installed. This of course, depends upon what part of the country you live in.

Another alternative to the traditional furnace that is gaining in popularity is the corn burning furnace. This type of furnace uses shelled corn (the same kind fed to livestock) to heat a home. While this is a viable source of heat it is not fool proof, it does have drawbacks that need to be considered before making a final decision.

Corn fuel furnaces are comparable to a convention furnace as far as price is concerned, costing roughly $2,000. It uses corn that has no more than 15% moisture content; fortunately, this is the same percentage of moisture as feed corn, making it very easy to obtain from a local elevator. The cost of burning corn as compared to propane is approximately one bushel of corn is to 5.5 gallons of propane fuel. Corn is also a natural and renewable resource, and keeps farmers in business while keeping your heating costs down.

On the other side, corn fed furnaces need daily cleaning to be efficient. They also run on an electric fan system, if you lose electricity, you lose heat also. For this reason, its best to either have a generator or a back up furnace for emergencies.

Being armed with the knowledge of these types of heating sources will make you a more educated consumer when it is time to replace an old, worn out furnace.

Linda Moore writes on a variety of subjects including home ownership, family matters, personal enrichment, replacing your furnace and property values,

Stoke Your Body's Furnace With Low Carbohydrate Food

Though there are many different low carbohydrate diet plans, they are based on the same principles. When carbohydrates (such as starches and sugars) are consumed, the body's blood sugar level rises. To counteract high blood sugar levels, the body releases insulin, which in turn increases fat storage and decreases the body's ability to burn fat.

When a low carb dieter restricts carbohydrates, his or her blood sugar is only slightly raised, thus preventing excess insulin production. But many low carbohydrate dieters’ hopes are ruined by uncontrollable sweet cravings, hypoglycaemic mood swings, hunger urges and lethargy.

The truth about carbohydrate is that too much carbohydrate provides too many Calories and probably also has certain negative effects on blood glucose and insulin levels. Despite this however, the body must still have a minimum amount of carbohydrate (as glucose) to stay alive.

Although the brain and nervous system normally want the most glucose, these organs can get along without it in a pinch. But that's not true for certain blood cells and other types of cells. They must have a steady supply of glucose, because without it they'll quickly die.

For this reason, glucose is so important that your body will begin to make the glucose it needs for these cells out of muscle protein if it doesn't get enough carbohydrate from food. But, although possible, this is a stressful emergency reaction (called ketosis), which also makes you miserable with hunger, cravings, and many other unpleasant sensations. Obviously, dieting would be much more successful if we could avoid all that.

When your body runs low on any nutrient it needs to stay healthy, it naturally triggers hunger to make you go get it some more of that thing. But if you habitually eat foods that have too little of whatever it's running low on and too many Calories, you're going to get fat from this reaction.

Fortunately you can lose the weight again by simply reversing the process. To do so, you learn to eat things that have lots of what your body needs but not many Calories. When you succeed at this your body has no reason to trigger hunger and food cravings even when you're eating very few Calories and it's burning excess fat (stored Calories) to make up for this.

This reaction is as true for carbohydrate as it is for each of the other nutrients. If you eat too little carbohydrate, your body will trigger hunger because it needs a minimum amount of glucose every day to supply the cells that can't use anything else.

If you eat too much carbohydrate, you'll get fat because too much carbohydrate has both too many Calories and the aforementioned negative effects on blood glucose and insulin levels. So how much is "enough but not too much"? That amount is probably highly variable depending on your lifestyle. A stressful "go-go" day can require a lot of carbohydrate while a relaxed day probably won't. However, most scientists put the minimum amount of carbohydrate that most people will need in the range of 50-100 grams per day (which is 200-400 Calories from carbohydrate). This is the amount that prevents your body from starting to make glucose out of muscle protein.

Since most food labels list the amount of carbohydrate in the food you eat, tracking and controlling amounts is not difficult. Try to eat in the range of 400 Calories from carbohydrate per day. This will usually prevent the hunger and cravings that are triggered by too little glucose.

There are several other nutrients that also trigger hunger and cravings when you get too little of them - and which must therefore also be managed similarly.

Lo carb diets are all the rage and you can easily see why. While lowering your carbohydrate intake you thusly have to burn less calories, which means less exercise