Command Comfort Blog : Posts Tagged ‘Furnaces’

Common Problems with Furnace Burners

Friday, October 31st, 2014

The burner in your furnace is where air and gas meet and combust. It is a critical part of your furnace, and problems with it can result in heat loss. Repairing a burner takes training and expertise, so working on your burner yourself is not recommended. The best way to ensure that your heating, works the way it’s supposed to is to call the professionals at Command A/C. Our certified and trained technicians are available in Cypress, CA 24/7, so if you are experiencing issues with your furnace, call us today.

What Is the Burner?

The burner is the part of your furnace through which the natural gas flows and ignites into jets that heat the air for your home. The burner is a rectangular-shaped component with 4-8 short metal tubes that are fed the gas from the furnace’s manifold. An igniter at the right side of the burner ignites the gas jets, and a flame sensor at the other end monitors the flames. The burner heats the heat exchanger, which provides the warm air for your home.

Common Problems with Burners

Here are some common problems that can develop with a burner:

  • Rust/corrosion – any kind of rust or corrosion on your burner means that the burner needs to be replaced. A rusty burner can leak gas and/or malfunction, leading to problems with heating.
  • Problems with the igniter – there are two types of igniters: intermittent pilot and hot surface igniters. While each works differently, they both do the same thing: ignite the gas in your furnace. When the igniter is dirty, has a crack, or there is no spark, the burners won’t light.
  • Problems with the manifold – the burners are fed the gas via a manifold. The manifold is a pipe that runs the length of the burner, with small nozzles feeding gas into the burner tubes. If something obstructs the manifold from the inside, or the manifold is bent, problems can ensue with the burner, in addition to potential problems with safety.

Without a properly working burner, you may lose heating in your home. Repairing a burner is not a DIY kind of job, so call Command A/C and let one of our certified technicians handle any heating repairs in Cypress, CA.

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What is an Upflow Furnace?

Friday, October 10th, 2014

There are a number of characteristics that homeowners use when selecting a home heating system. Size, fuel type, and AFUE rating are all common factors in making the right decision. When selecting a furnace, however, something is commonly left out. Do you want an upflow furnace or a downflow furnace? Despite not being as well known as the other differentiating factors, this question has a definite impact on the performance of your furnace. Read on to discover the qualities of an upflow furnace, and whether it’s right for you.

Up and Out

Essentially, what makes a furnace upflow or downflow is where it takes in cold air to be heated. An upflow furnace takes in cold air at the bottom of the unit, heating it and circulating it from the top. There are a couple of implications with this kind of furnace, the first being efficiency. Hot air naturally rises, and sinks when it cools. This makes an upflow furnace more efficient, because it is taking advantage of heat’s natural behavior. This will result in heat being more easily distributed throughout your house, requiring less work from the furnace and lowering your heating bills.

The other implication is the location where the furnace needs to be installed. Because of the way upflow furnaces operate, they tend to be installed in basements. This allows them to waste very little heat, as it all rises into the house through the floor. This is also viewed as a more comfortable method of heating. A downflow furnace heats from the top down, which results in much of the warm air becoming trapped in the ceiling where it isn’t much use.

The disadvantage of an upflow furnace is that it isn’t necessarily viable in all homes. Not all homes have basements, especially those on the west coast. This can make proper installation of an upflow furnace more troublesome, perhaps even impossible.

If you are thinking about installing an upflow furnace, call Command A/C. Our heating experts operate throughout the Cypress, CA area. We will find the right furnace for your living space.

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Signs That You Need to Replace Your Furnace

Monday, February 17th, 2014

Furnaces can last for many years if they receive regular maintenance and timely repairs. However, no furnace can endure forever, and you need to know what signs to look for to indicate that your furnace has come to the end of the road. We’ve put together a list of the most tell-tale warnings about the need for furnace replacement.

If you’re wondering where to go for new heating system installation in Long Beach, CA, look no further than Command A/C. We have the experience and training to deliver you excellent new heating for your home.

Three signs of impending furnace replacement

  1. Constant loud operation: Strange noises from a furnace cabinet are good early warning signs about repairs. When these noises become the rule instead of the exception, the furnace has probably moved beyond the point where repairs will do any good. Schedule an appointment with an HVAC professional to find out if it’s time for a new installation.
  2. Rise in heating bills: If you have had your furnace long enough—and if you are considering replacement, you probably have—you should have a solid idea of what to expect from your heating bills each month. A sudden leap in those bills often means that the furnace needs repairs. If the heating bills gradually rise and remain that way, however, it often indicates that the furnace is coming to the end of its service and can no longer do the efficient job it once did. If repairs do not change the situation, ask the repair technician if retiring the heater and scheduling new installation is the best choice.
  3. The furnace begins to rust: Furnaces do not use water to create heat, but nonetheless they can rust because of a reaction between metal and the exhaust gas. This usually takes many years to occur; when you do start to notice rust along the cabinet or on interior parts, it is a strong sign that the furnace has outlived its usefulness and should be replaced. Because rust can cause cracks in the heat exchanger and carbon monoxide leaks, you should have the replacement done as soon as possible.

Always account for furnace age

When considering any of the three signs above, always keep your furnace’s age in mind. A furnace that has worked for over 20 years is due for a replacement, even if it is operating well in most regards. At the first sign of trouble, you should consider replacing it. For younger furnaces, look into repair possibilities first—and always remember to schedule regular maintenance for it so it won’t prematurely age.

For the knowledgeable technicians you need, call Command A/C. We can help you determine if it’s time for new heating installation in Long Beach, CA.

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