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

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Choosing a Furnace Humidifier

While everyone longs for a white winter, the problems associated with dry winter air can be unpleasant. Low humidity can dry out our skin, our mucous membranes, and our nasal passages. It can also cause undue drying of the wooden structures of our home. What’s more, our well-intentioned efforts to heat our cold, wintry space often make the problem even worse by removing any moisture remaining in the air. This causes nosebleeds, cough, sore throat, and more.

A humidifier can help alleviate many of the problems associated with dry air. Humidifiers work by sending moisture into circulation in the air, raising the humidity level. Tabletop humidifiers are good choices for humidifying a small space, such as a nursery or bedroom. Console humidifiers are larger and are effective for humidifying multiple rooms or small apartments. For humidifying large spaces or a whole house, however, it is much more cost-effective to use a whole house humidifier. These generally attach to either the air-conditioning or heating system and circulate moisture throughout the entire home.

Furnace humidifiers, as the name suggests, are connected to the furnace system. It is installed in the ducts and works with your home’s heating and cooling system to humidify your entire house. A furnace humidifier uses your home’s water system.

With prices starting around $100, furnace humidifiers are initially more expensive than the other models. However, they are more energy efficient and cost less to operate over the long haul. Annual maintenance costs, including filter changes, run from $2 to $30.

When purchasing a furnace humidifier, look for a model than has a humidistat. This will allow you to set the desired humidity lever. When that level is reached, the humidifier will shut off. This feature is important as it helps avoid the problem of over-humidifying.

As with other types of humidifiers, your furnace humidifier will need to be cleaned and disinfected according to the manufacturer’s instructions. Failure to follow the instructions can lead to the growth of mold and bacteria. These would then be sent circulating through your home.

Humidifiers Info provides detailed information on house, furnace, cigar, and ultrasonic humidifiers, as well as humidifier filters and product reviews. Humidifiers Info is the sister site of Dehumidifiers Web