Sound Heating and Air Conditioning Inc. Blog: Archive for the ‘Heating’ Category

How Does a Fife Hydronic Boiler System Work?

Monday, November 12th, 2012

Do you know how the boiler in your home in Fife works? Boilers are a very popular heating system in the United States yet some people aren’t familiar with how they actually work. Knowing how your heating system works is critical to knowing if it is operating properly. Below, we’ve outlined a very basic explanation of how hydronic boilers work. If you have any questions about boilers or if you suspect that your boiler needs repair, contact Sound Heating and Air today.

What is Hydronics?

Hyrdonic systems in Fife use water to transfer heat to the air in your home. Pretty simple right? Hydronic systems are some of the oldest heating systems in the world. They include radiant floor heating, steam and hot water radiators.

The Boiler

Unless you have a steam system, your boiler doesn’t actually boil the water. It heats it to between 130° F and 160° F. The temperature should not exceed 200° F.

The Pump

The pump actually circulates the hot water to the rest of your house.

The Expansion Tank

The expansion tank is a critical part of your boiler system. Have you ever boiled water in a tea kettle? When the water is hot enough, it actually expands and starts shooting steam out the lid of the kettle. That’s what makes that high-pitched squeal. The expansion tank exists to account for the property of water that makes it expand when it heats up. Without the expansion tank, your pipes, pumps and valves would burst from the pressure of the hot water. The expansion tank looks like a propane gas tank that you would use for your barbeque.

The Radiators

Hot water radiators are actually the components that are responsible for distributing the heat into the air in each room. One some newer models, they have a temperature control on each of them.

For all your boiler system needs, contact the heating professionals at Sound Heating and Air. We have experience working with all types and brands of boilers. If you need boiler repairs in the Fife area, we’re the company to call. We’ll be at your as quickly as possible to diagnose and fix the problem.

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Heating Tip: Smart Thermostat Options

Monday, November 5th, 2012

Many people in Tacoma underestimate the effect that their thermostat can have on the efficiency of their heater and air conditioner. An improperly placed or poorly calibrated thermostat can wind up costing you more money for less performance from your home comfort systems. Likewise, a quality thermostat properly used can help boost energy efficiency. Smart thermostats have many features that allow you more control over the way in which energy is used in your home. If you’re considering upgrading to a smart thermostat here are some features you may want to consider.

  • Programmable Features: There are a lot of programmable thermostats on the market allowing you to create different temperature control programs and schedules. This lets you maintain specific temperatures throughout different times of the day without having to be at home, even when away on vacation. You can come home to a comfortable environment without having to run your home comfort systems at high levels throughout the day to do so. Smart thermostats offer more programmable features with many added capabilities.
  • Remote Temperature Control: If programmable settings aren’t offering you as much control as you’d like over your heater and air conditioner, many smart thermostats allow you to access your system remotely using a laptop or even your smart phone. Adjust temperature settings no matter where you are in real time for true home comfort control.
  • Track Energy Usage: If you want to see exactly where your utility costs are being used a smartphone can help you do so. By tracking energy use in your home you can determine where inefficiency is a problem and energy is being wasted. Use this energy to fix problems and decrease energy costs.
  • Occupancy Detection Sensors: Some smart thermostats have the option of controlling temperatures on their own. With occupancy detection sensors your smart thermostat can determine when rooms are unoccupied or even when occupants are sleeping and will adjust the temperature accordingly. This takes manually setting your thermostat out of the equation.
  • Review Energy Reports: Your new smart thermostat can provide you with valuable information, compiling energy use data over a period of time, as much as 10 days on some models. Use this information to better understand your home heating and cooling habits. Look for recurring energy spikes or wastefulness, tweak your habits, and save energy.

When properly used a smart thermostat can be a great tool in the fight for energy efficiency. If you have any questions about their function or available models in your area call Sound Heating & Air Conditioning. We have the information you need to start heating and cooling your home more efficiently.

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What Are Flue Gas Spill Switches?

Monday, October 1st, 2012

While some components of a heating system make sense to the average Olympia homeowner – think blower fan, thermostat and air ducts – others are more esoteric and prone to bouts of head scratching.

So, you may find yourself asking “what the heck is a flue gas spill switch?” Read on for the answer.

As you know, gas heating appliances produce heat by means of combustion. The gas line feeds gas into the appliance, the gas is ignited, and the burning gas produces heat. It’s a simple concept that goes all the way back to our caveman ancestors building fires to keep warm, and it is the same process in gas furnaces, boilers and water heaters.

In addition to producing the cozy heat we love in the winter time, this combustion process also releases gases. Known collectively as “flue gases,” some of these – carbon monoxide being the most notorious – can be very toxic. This is why we have flues or chimneys in our northwestern homes– to give these gases a means of egress.

A flue gas spill switch is designed to shut down the furnace if these gases start seeping out. It is made up of a sensor or series of sensors that detect heat outside the flue, not unlike the flame sensor in your furnace. If flue gases start to escape and pass by the sensor, the sensor heats up and signals the furnace to shut down. This cuts off the power and gas, so that no more flue gases can leak into the home and create a health concern.

If your furnace has been abruptly shutting down, it could be your flue gas spill switch trying to tell you that you have a leaky or cracked flue. If this is the case, you want to have it repaired right away. The constant off and on is not good for the furnace, and more importantly, those flue gases can be exceptionally hazardous to your family’s health.

To schedule a maintenance appointment today, give Sound Heating & Air Conditioning a call!

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Heating Guide: Furnace Control Boards

Monday, September 24th, 2012

One way to be a truly responsible homeowner is to familiarize yourself with the major systems and appliances in your home. By having at least some understanding of how, say, your refrigerator or toilet work, you gain understanding of how to use them efficiently and detect when something goes wrong.

The same is true of your Tacoma home’s furnace, which can appear to be a complicated piece of machinery. In order to help you get acquainted with your furnace, we will discuss one of its main control components, the furnace control board.

As the name suggests, furnace control boards are responsible for governing the operation of the furnace. At a minimum, a simple furnace control will control the furnace ignitor (e.g., a spark generator or glow coil), the gas valve and the furnace thermocouple, also called a flame sensor.

More complex furnace control boards will also have control over the blowers and/or the built-in diagnostic system.

To simplify things, you can think of the furnace control board as being a driver and the furnace as its car. Just as the driver oversees all the functions and operation of the car from ignition to shutting off the engine, likewise does the control board for the furnace.

A typical operation sequence for a furnace control board goes something like this:

  1. The control board receives a signal from the thermostat that the temperature is too low.
  2. It starts the ignition system, whether that be a spark generator, glow coil or pilot light.
  3. Once the ignitor is hot, the furnace control board initiates the flow of gas through the burners, where it is ignited.
  4. The control board keeps the furnace running until it is signaled by the thermostat that the temperature is now high enough, or until it detects something is wrong.

(An example of a malfunction where the control board would get involved is a thermocouple that is not detecting enough heat. In this case, the control board would shut off the gas flow to prevent a leak into the home.)

Furnace control boards are an essential part of your Tacoma home’s heating system. For any heating repairs in the Tacoma area, give Sound Heating a call!

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Heating Question: Is Your Furnace Not Blowing Enough Air?

Monday, September 17th, 2012

Have you ever been in your house in the winter, listening to your Puyallup furnace churn away trying to heat the house, but noticed that the whole place is still cold? If you checked the heating vents in this situation, you would probably find that there is not much air flow coming out of them, which is why you are still freezing.

It is entirely possible for the furnace to be burning away, producing hot air, without enough of that warm air ever actually being distributed through your home. So it continues to run and run, resulting in excess wear and tear on the heating system that will probably shorten its productive life, as well as keeping your whole home too chilly.

Why does that happen? There are a several common culprits for insufficient air flow from a furnace. Below is a list of the most frequent offenders, along with solutions for each:

  • Cause: Dirty or broken air filter. An air filter that has accumulated too much build up or is damaged will slow down air flow in a hurry.
    Solution: Clean or replace the air filter as necessary. This should be part of routine furnace maintenance in order to ensure efficient operation. Refer to the manufacturer’s recommendations to see how often you should check your air filter(s).
  • Cause: Damaged, corroded, broken or collapsed ductwork. Your ducts are like the road that warm air travels on. If the road is out, then no one can get through. Simple as that.
    Solution: Have a professional inspect and repair your ductwork. A routine ductwork check is also part of a professional’s annual maintenance inspection.
  • Cause: Blower fan not blowing enough. This can be caused by a loose fan belt, or a dirty motor.
    Solution: First, clean the blower fan and the area around it. It has to deal with a lot of air, so it naturally becomes dirty over time. If that doesn’t fix it, the fan belt probably needs to be replaced.

There are some other causes of improper furnace air flow, but those are the most common and easiest to detect and repair. If your heat registers are not returning any warm air at all, that is likely a different problem and you should call a Puyallup furnace technician at Sound Heating to look at the system right away.

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Heating Question: Why Is My Air Handler Squealing?

Monday, September 10th, 2012

Unusual noises coming from your expensive Seattle heating system never a good thing; they make you worry that something is wrong.

It’s true that an unusual noise does often mean that something needs to be fixed; however, a noise emanating from your HVAC system does not necessarily mean a major repair. You should always have a technician check out if you suspect a problem with your system, but not all problems are going to be expensive to fix.

One common noise that homeowners notice and complain about is a squealing noise originating in the air handler. Usually, this noise is coming from the fan belt that connects the blower fan and the motor. Over time, the belt can stretch out and become worn or misaligned, which makes it slip and generate that aggravating squealing noise.

So, while the squealing can be annoying and unpleasant, a slipping belt is by no means major. A belt is an inexpensive part and a Seattle heating technician can install it in just a matter of minutes.

As long as the noise is a squealing and not a grinding, this simple fix wil often take care of the problem. If you hear a grinding noise, however, immediately shut the unit down and call a technician. This may mean that your motor bearings are worn out and need to be replaced ASAP before further damage is inflicted on the motor itself.

For heating repairs you need in the Seattle area, give Sound Heating a call today!

 

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How Can Heat Pump Reversing Valves Help Heat Homes in Kirkland?

Monday, June 11th, 2012

As conventional energy resources dwindle and become more expensive, alternatives increase in popularity.  Heat pumps in Kirkland, like the natural heat they harness, are fast rising to the surface.

Tapping the stored energy of the greatest solar collector in existence, ground source heat pumps (GSHPs) are electrically powered systems that tap the earth’s relatively constant temperature to provide cooling, heating, and hot water for homes and commercial buildings. Simple, efficient and abundant, heat pumps are best used in moderate to hot climates where the differential of temperatures is not extreme.

In General

Functioning on the same principle as refrigerators, the heat pump uses a liquid to absorb heat as it turns into a gas and release heat as it returns to a liquid state. During the summer, the heat pump operates as a standard central air conditioner, removing heat from the house and venting it to the outside.

In the winter, the heat pump reverses this process, extracting heat from the cold air outside and releasing it inside the house. The heat pump is very efficient when the outside temperature is around 45 degrees Fahrenheit to 50 degrees Fahrenheit, but it becomes less efficient as the temperature drops.

The Heart of the Matter

The reversing valve in the heat pump switches the process from absorbing heat from the inside to evacuate outdoors like an air conditioner to extracting heat from cold temperatures outside and redistributing it indoors.  The thermal energy at play is the natural force of heat to move toward cooler temperatures, releasing energy in the shift.  Heat pumps take care of both and the reversing valve controls the direction of the flow.

The reversing valve has two states of operation: relaxed and energized.  In the relaxed state, the heat pump can be programmed to introduce either heated or cooled temperatures into the conditioned space, depending on the direction of the flow of refrigerant through the closed loop.

By applying a 24 volt charge of AC current (a low voltage typically used in HVAC systems), the valve becomes energized and reverses the flow, producing the opposite conditioning.  The reversing valve may be driven by the heat pump through the use of a control board or directly by a thermostat.

As energy resources rapidly change in cost and supply, heat pumps utilizing geothermal energy are looking like a viable alternative in today’s market.  To learn more about this heating option please call Sound Heating

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Simple Steps to Prevent Heat Loss in Kirkland

Monday, June 4th, 2012

There are two fundamental ways to make your Kirkland house warmer. One is to generate heat, which is the job of your furnace or boiler. The second is to keep the warm air in — and thereby keep cold air out — which is the job of your system of insulation.

The idea that the physical structure of a home can be a component of the heating system is one that is often overlooked, but when you think about it, it makes sense. The insulation, windows, doors and building materials that comprise your home are designed to keep the place warm against the cold and vice versa.

So, when bolstering your HVAC system to promote efficient heating, it is important to also consider heat loss and how to prevent it. This is a process that can get out of hand if you go overboard, so it is important to prioritize. Let’s look at the top 3 places to start when trying to prevent heat loss.

  1. Doors and Windows:  If you have older doors and windows, they could be a source of heat loss in your house, even if they are always closed. Replacing your windows and door with Energy Star rated ones will make sure that you are not losing heat to the outside AND still getting all the heat energy from the sun. Installing storm windows or putting up heavy curtains in winter can also help cut down on your heat loss.
  1. Seal off drafts. If any opening to your house, such as windows and doors, is improperly sealed, improperly installed or if the surrounding construction is deteriorating, you can lose a lot of heat. Check any drafts that you notice that might indicate a problem, and also if your vents and air ducts are leaky.
  1. Start at the top. If you want to go farther in sealing your house up against the cold, it is time to work on the insulation. When installing new insulation, remember that heat rises, so you get the most bang for your buck by starting at the top. If you only have the budget or time to insulate one space, make it the attic. You can work down from there.

These areas should be your top three priorities on your mission to prevent heat loss in your home. If you start here, you will get the best gains with the least effort.  If you have any questions about additional ways to make you heating your home more efficient please call Sound Heating

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How to Handle Furnaces That Turn Off and On Repeatedly in Puyallup

Tuesday, May 29th, 2012

York furnaces in Puyallup are designed to last decades without major problems so long as they receive regular heating system repairs.  They typically work so well, in fact, there is a danger of taking our comfort for granted and skipping the annual service for a year or two as time rushes by, waking up suddenly and brutally to a dark night and no heat.

In retrospect, a preliminary indication of trouble could have been the furnace continually turning off and on in short bursts, something that was tugging at your senses, but not strongly enough to really catch your attention.

Possible Problems

A furnace constantly turning on and off could often be a direct result of poor airflow through the system.  Heat builds up and the detectors sense the proper temperatures have been reached and automatically shut down.  In the room, the thermostat calls for more heat and starts the cycle over again.

A relay switch or control valve may also be worn and working improperly.  A crack in the heat exchanger might fuel the flame to burn too hotly and cause the sensor to misinterpret the information and shut down.

These problems not only impede the distribution of heat to the living spaces, decreasing comfort, but also create intense wear on the motor and controls, threatening the very life of the appliance.

Simple Solutions

Restricted airflow can be caused most often by a dirty or clogged filter.  At the furnace, there is usually a panel that can be removed to check, clean or replace the filter.  It is typically a single or series of cardboard and screen panels approximately 1′ by 2′, but varies by manufacturer and furnace output.

A vacuum to pull lint free or compressor to blow it clean are the recommended tools to use a few times each year.  It is a good idea to change the filters at the beginning of each heating season. The belts are also easily replaced.

The fan belts for the blower may also be worn loose and not pushing the air hard enough to get through the filters.  It is a good idea to check them regularly as well.

The Calvary Charge

When in doubt, call the experts out.  Scheduling an annual inspection and service by calling Sound Heating takes the worry out of living in a furnace heated home.  Besides the rite of safe passage for your peace of mind, trained mechanics can spot the defects and give you the best assurance of a long life of comfort and warmth.

When contracting with the same HVAC company over time, a relationship is built whereby they care nearly as much as you.

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No Heat From Your Boiler in Bremerton: Causes and Solutions

Monday, May 14th, 2012

Hydronic Boiler Systems in Bremerton are very popular because of their reliability and efficiency. Just like any other appliance though, hydronic heating maintenance is needed periodically, especially as units age, and they can happen for many reasons. The first step is to make sure you’re actually dealing with a breakdown and not something much more simple. If you’ve lost heat from your boiler, check to make sure there’s fuel in your oil or gas tank before making a service call. Also keep in mind that part of the heating system is electrical. A recent power outage or short circuit in the house could have tripped the circuit breaker for the boiler.

Next, check the emergency shut off switch. It looks like a typical wall light switch but with a red cover and bold lettering indicating the off and on positions. It’s usually placed in a convenient spot in the basement. In many Bremerton homes it’s located at the top of the basement stairs. Sometimes the switch is turned off accidentally, but if a repairman or someone else in you house turned it off for a reason, you need to find out why.

If the emergency switch is on and all the circuit breakers are on and there’s plenty of fuel, the next step in diagnosing the problem is checking the boiler. First, understand that most heating appliances automatically shut down when a critical component stops functioning properly. Don’t put yourself or your family at risk. Don’t attempt to restart or repair the boiler yourself. But you can help the HVAC technician help you by checking a few simple things before making the call.

A puddle on the floor usually means a pipe or valve is leaking. A drop in the water level inside the boiler could have triggered the shut down. But leaks in joints can also occur when something else shuts the boiler down and the metal plumbing shrinks. Is the puddle getting larger or is it stagnant?

If there’s no leak, carefully touch the copper pipes running in and out of the top. If some are hot and others cold, the boiler is probably working but some of the zone controls or thermostats may be broken.

If all the pipes are cold, carefully touch the metal panels covering the boiler. They usually warm up a bit when the boiler is operating normally. Listen for the faint hissing sound of the pilot light. If the  boiler is cold and completely silent, the pilot light may have gone out, triggering a shut down. Don’t attempt to relight the pilot unless you’ve done so before. The HVAC technician can show you how to do it. Keep in mind that many new boilers in the Bremerton area have pilotless electronic ignitions.

If the pilot is lit but the pipes and boiler are cold, and boiler uses fuel oil, the burner motor may have stopped working. The burner motor is a separate, smaller unit attached to the boiler. Most burners have a red reset button that pops up when there’s a burner malfunction. Try to locate the button and decide if it’s popped up, but don’t reset it. Call an HVAC technician first. Restarting a malfunctioning unit may cause further damage. Oil burner motors can stop working for many reasons, including soot blocking the air supply, blocked fuel line, dirty electrodes inside the motor, or seized up bearings. Only a licensed HVAC technician can correctly diagnose and fix such problems.

Please call Sound Heating if you have any questions about these tips.

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