Posts Tagged ‘Pacific Beach’

How to Use a Heat Pump Reversing Valve in Pacific Beach

Monday, April 16th, 2012

As conventional energy resources dwindle and become more expensive, alternatives increase in popularity.  Heat pumps in Pacific Beach, 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, hot water, and heating for Pacific Beach 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.  Call Cal-West Air Conditioning to learn more about how heat pumps can be installed at your house.

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How to Check if Your HVAC System is the Right Size in Pacific Beach

Tuesday, February 28th, 2012

Do you ever feel that your home just doesn’t get cool enough during the warm months or warm enough during the cold months in Pacific Beach? You have tried to adjust your thermostat to the right comfort level but it just never seems right. And on top of that, you notice that your utility bills keep going up and up. Even when you dial up the thermostat in the summer and dial it down in the winter to saving on energy usage, your bills are still about the same.

You could try adding fans and shedding clothes during the warm months or wearing sweaters and crawling under a pile of blankets in the cold months. But do you really enjoy living that way? There must be another solution as to why your heating and cooling (HVAC) system is just not keeping you comfortable – and affordable.

That air conditioning condensing unit sitting in your backyard and the furnace in your basement should be making your home as comfortable as possible. But in many cases, they are not.  That’s because whoever installed those HVAC system components didn’t do their homework on your home. The components were sized incorrectly. If a furnace or air conditioner is sized incorrectly, it usually cannot keep up with the demand for heat or cold and often puts such a burden on the equipment. As a result, regular failures and repair bills are commonplace.

And it may not be the fault of the installing HVAC contractor. Over the years your home may have undergone renovations including additions and new windows, which have increased the square footage or demand for more heating or cooling. Those renovations may not have included upgrades to your home’s HVAC system.

So how do you check for the right size? Call a professional HVAC contractor and ask for an energy audit for your home. The audit will include several key checks including a load calculation, which adds in the size of your home’s living space, number of door and windows where heat loss or gain could occur, and a check of heat loss or gain through leakage in cracks, roofs, crawlspaces, etc. An energy audit will determine what size of furnace or air conditioner is needed to meet the heating or cooling needs of your home and its own individual characteristics. Your HVAC contractor may also factor in the number of building occupants and normal usage patterns, i.e. having a home office or stay-at-home parent versus a working family where your home is occupied mostly at nights or on weekends.

All of these factors are considered when determining the equipment size. In air conditioning jargon, you will hear about tonnage of cooling capacity. An example may be a 2.5 ton air conditioning unit for a 2,000 square foot home. In furnace jargon, you will learn about Btu ratings, which are British thermal units. Most furnaces are sized in 20-25,000 Btu increments. Each is matched to the cooling or heating needs of your home. Your HVAC contractor will likely recommend using a programmable thermostat, too. That way, you can set the temperature of one or more zones in your home to when each zone is occupied.

Make sure you don’t hire someone who “guesstimates” how much cooling or heating capacity you need for your home. Find a qualified professional who will make the correct calculations and who will qualify their recommendations. A properly sized HVAC system will equate to manageable utility bills and above average indoor comfort. You can live with that.  Please call Cal-West Air Conditioning with any questions.

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Pacific Beach Heating Tip: Components of a Heat Pump

Wednesday, January 4th, 2012

As every Pacific Beach heating contractor knows, because of their simply designed function – pumping heat one way or the other – heat pumps have relatively few components. However, these components do not work the way you might expect, if you are picturing, for example, a fan that blows heat in or out.

A heat pump operates on the same principle as an air conditioner or refrigerator, which may seem complicated at first, but it’s not. The heat pump consists of five main functional components, which are outlined below:

  1. The coils absorb heat from the surrounding air and channel it in or out of the home. There are two different types of coils in a heat pump. Condenser coils are outside the home transferring heat to and from the outside air. Evaporator coils are the reverse, transferring heat to and from the air inside the home.
  2. The coils are filled with a refrigerant, which is the medium that carries heat into or out of the home. On a cold day, for example, when the heat pump is in heating mode, the refrigerant in the condenser coils will absorb heat from the outside air, the flow inward into the evaporator coils, warming the interior of the house.
  3. The compressor pressurizes the refrigerant so that it is able to readily absorb as much heat from the air as possible. This is how your heat pump is able to gather warm air from the chilly outdoors to keep your Pacific Beach home warm.
  4. The reversing valve is the component that changes the flow of the refrigerant when switching from heating mode to cooling mode, or vice versa.
  5. Finally, the air handler is the fan component that distributed the heat throughout the house via your home’s ductwork.

While these are the five main components, there are several smaller parts involved within and alongside each of these, as well. You need not concern yourself with them, since you won’t have occasion to interact with them. A Pacific Beach contractor will be able to identify and repair any of the components of a heat pump as needed.

In addition to these five primary components, most heat pumps also include a heater pack, which is a bunch of actual heating elements for use when the heat pump cannot operate on its own. For example, you would turn on the “Emergency Heat” setting of your heat pump after a power outage to warm the refrigerant before use. That setting is supported by the heater pack.

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How to Get Your Furnace Ready for Winter: A Guide from Escondido

Wednesday, November 23rd, 2011

Being cold in the winter is normal – as long as you are outside. But you shouldn’t be cold inside your Escondido home. If that happens, the first place to look to is your furnace, which may not be working correctly. Furnaces are like any other piece of mechanical equipment. They need to be maintained and serviced on a regular basis to ensure they are working at peak efficiency and warming your entire home at your desired comfort level.

First of all, check and see when you last had your furnace serviced. If it has been over one year ago, you should schedule a maintenance inspection from your local qualified heating and cooling professional. And when you make that appointment, ask about service agreements and getting on a regular maintenance schedule. Most heating and cooling contractors offer service agreement plans which include furnace and air conditioning check-ups on an annual basis.

Okay, so you know who to call for maintenance but what can you do yourself? First of all, give your furnace a little “help” by checking the vents and returns throughout the house. Ensure that there are no obstructions or blockages such as rugs, clothing, furniture, etc. You need to have unobstructed paths for your heated and return air to flow. The more congested the path, the harder your furnace will have to work. And while you’re at it, make sure your vents are open or closed, depending on how much you use your rooms. For example, if you have an extra bedroom that doesn’t need to be heated, closed off the vent or close the damper in the ductwork. The heated air will be diverted to other parts of your home where it is needed.

You can also help the airflow by vacuuming the vent cover or removing it and vacuuming any of the ductwork that you can easily get to. For a more thorough job consider calling a qualified and professional duct cleaning contractor. Many heating and cooling contractors also offer duct cleaning service, too.

Another maintenance function that you can perform is cleaning or replacing the furnace filter. Depending on the size of your home and its air quality (occupants, pets, etc.), you may want to clean or replace your air filter every one to three months. A dirty filter can restrict airflow and can put contaminants like dirt and dust right back into your air system. If you don’t know how to replace your air filter, consult the furnace owner’s manual or go online to learn more. If your furnace uses an electrostatic air filter, it will need to be removed and cleaned, either by using a hose or with soapy water and a hose. Make sure you let it dry before re-installing it.

You may also want to inspect any electrical wires around your furnace to ensure none are broken or frayed. A visual inspection should be good enough.

Once you have done what you can, let your heating and cooling professional take over from there. They are licensed and trained to inspect your furnace and ensure that it is in peak operating condition.

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Top 10 Mistakes People Make When They Buy HVAC Equipment in East San Diego

Friday, October 14th, 2011

Every year thousands of homeowners buy a new HVAC system for their East San Diego home. Whether for heating, cooling or air quality, they make a huge investment in a new system that will be with them for years to come. Unfortunately, many of those people make big mistakes when buying their next system, so to help you avoid doing so, here are some simple things you should not do.

  1. Ignoring Air Quality – Air quality is about more than comfort. It affects the health of everyone in your home equally. Consider it carefully when installing a new system.
  2. Avoiding Even Heating and Cooling – One room being cooler or warmer than another is not okay. It’s bad for your system and bad for your home’s comfort level. Have insulation and ductwork checked before installation of a new HVAC system.
  3. Not Upgrading Your AFUE or SEER – New systems are highly efficient. Take advantage of that by buying one with a higher AFUE or SEER rating.
  4. Not Vetting Your Contractor – Always spend time checking up on your contractor, reading reviews and asking other customers how their experience was.
  5. Skipping the Service Agreement – Service agreements save money and help your system last longer. Don’t skip them.
  6. Buying the Cheapest Option Available – It may be tempting, but a cheap HVAC system is a bad idea if you want it to last and save you money in heating and cooling. Even a midrange system will save you money in only a few years with higher efficiency ratings.
  7. Picking the Same Model You Already Had – New models are stronger and more efficient. When possible, get an upgrade and your bills will reflect the difference.
  8. Waiting too Long to Buy – The longer you wait, the more you pay in heating and cooling bills for an old, worn down system. If you know you’re going to buy a new system, act fast to save the most possible money.
  9. Not Asking Questions – If you have a question, ask it. There is no such thing as a stupid question when looking for a new HVAC system.
  10. Ignoring Maintenance Recommendations – Maintenance recommendations are optional but almost always to your benefit. Research on your own before committing to anything, but don’t ignore the necessity either.

If you do things just right, your new HVAC system will last for years to come and provide steady, comfortable heating or cooling throughout that time. But, if you rush through things, make a hasty decision and neglect to do any research, you may have issues with your system in far less time than you’d like. Be smart and you’ll be rewarded.

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How to Handle an Overloaded AC in Clairemont Mesa

Wednesday, October 5th, 2011

The last thing you need on a hot summer day in Clairemont Mesa is for your air conditioner to suddenly cut out. Without the cooling power it provides, your house will get uncomfortable quickly. Fortunately, once you know why this happens, there are several things you can do about it.

Why Air Conditioners Cut Out

The most common reason for air conditioner failure is an overabundance of pressure in the unit. This happens because the coil gets too hot, causing the pressure to rise in the entire device. As the pressure rises past a certain point, an automatic safety shutoff system is engaged. If you can stop the coil from heating up to this point, you can keep your air conditioner running.

How to Keep Them Running

Of course, this is easier said than done. Since your condenser unit with the coil inside is located outside in the heat, it’s only natural for it to get hot during the day – especially an extra hot day when you’re using your air conditioner a lot. You also need to be careful not to put anything over or up against your outdoor condenser unit.

While this may block the sunlight, it will also keep heat in the system and prevent the air conditioner from removing exhaust naturally. So in order to keep your air conditioner as cool as possible, make sure there is nothing up against the vents or impeding air flow in any way. Once you’ve done this, try and find a way to provide shade for you air conditioner without placing objects near the device. Blocking out direct sunlight is the best way to keep your air conditioner cool as long as you can do it without interfering with the system’s natural air flow.

Getting it Back On

If your unit does cut out on you, don’t despair. The best thing to do is to wait about a half hour to give your unit a chance to cool off on its own. Then, spray the coil and other overheated areas with a fine mist of cool water. This should lower the temperature enough that the system can come back on without any further complications.

If the problem persists despite the work you’ve done to keep it cool, you may want to call in a professional to take a look and make sure nothing is broken or worn inside to cause the overloads. Most of the time a little maintenance will take care of the problem, but if not, you’ll want to get repairs done quickly to avoid a full breakdown.

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Will My Air Conditioning Work Better with Dehumidification? A Question From Carmel Valley

Friday, September 30th, 2011

There are a number of common misconceptions about humidity and air conditioning and how one affects the other in your Carmel Valley home. In truth, humidity is a major part of the discomfort we feel when the mercury rises. It can be 78 degrees outside but feel miserable simply because the humidity is high. So, many people wonder whether a dehumidifier is a good solution to moderate heat and how it will work in tandem with an air conditioner.

Humidity and Your Air Conditioner

First, remember that air conditioning naturally lowers humidity because it cycles air through its condenser and evaporator coil. Conditioned air is naturally lower in humidity, regardless of what’s going on outside. So, if it is hot outside and humid, an air conditioner alone is very effective. On the other hand, a dehumidifier is useful is when the temperature isn’t that high but the humidity is.

Dehumidification not only lowers the relative humidity in your home, it reduces the need for cooling because you will feel more comfortable. Not only that, but a dehumidifier costs significantly less to run. So, when the temperature outside isn’t that high, there is no need to use thousands of watts per day of electricity just to stay comfortable.

This also reduces the overall wear on your air conditioner. Since it doesn’t need to run 24 hours a day to reduce humidity, wear and tear on the device is reduced and you save a tremendous amount of money on repairs and eventual replacement costs.

When to Use a Dehumidifier Alone

Generally, the Department of Energy recommends setting your air conditioner to 78 degrees and using a combination of a dehumidifier and fans to stay cool while it is off. If the temperature rises above that level, the air conditioner will turn on and supplement your dehumidifier. Consider too that a dehumidifier will reduce the burden placed on your air conditioner to pull humidity from the air. Humid air takes more energy to cool than dry air. Despite the fact that dehumidifiers will often raise the air temperature by 1-2 degrees, they save energy and make you more comfortable.

So, if you’re looking for a way to reduce your energy bill and enhance the longevity of your air conditioner, look no further than a quality dehumidifier.

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Air Conditioners and Energy Use by Percentage: A Guide From Fallbrook

Monday, September 19th, 2011

It’s no secret that air conditioners use up a lot of electricity and can add substantially to your energy bills during those warm summer months in Fallbrook. But did you know that they actually account for an estimated 11% of the total energy used in all buildings in the US each year? This is a staggering figure and makes it easy to see why it’s best to invest in the most energy efficient system possible.

Keeping Your Consumption Down

There are plenty of reasons to try and keep your energy consumption down. You want to save on your energy bills, and the less energy you use, the better it is for the environment. The best and most straightforward way to go about this is to purchase only highly energy efficient appliances and equipment, and that includes air conditioners.

Because air conditioner usage accounts for such a substantial part of the total energy used in this country, putting more energy efficiency models into use is the best way to cut that usage down.

Supplementary Cooling

However, there are other ways to reduce the workload of your air conditioner. For instance, you can use a ceiling fan to maintain good air circulation and keep your home cool. Using a ceiling fan with an air conditioner, even on the hottest days of the year, allows you to turn up your thermostat a bit to conserve energy while still enjoying a comfortable indoor environment. And because ceiling fans use so little energy to operate, you’ll come out ahead on your energy bill.

Passive Cooling

There are also several passive cooling methods you can employ to keep the temperature in your home down. Blocking out sunlight is the most important of these, so keep your blinds closed on any windows that receive direct sunlight, particularly in the early afternoon. Alternately, you can have awnings put up, which allow you to block the direct sun while still keeping the blinds open.

Shade is another effective passive cooling device. Planting trees around your home to block out the sun at the hottest times of day is a totally energy-free way of keeping your home cool and reducing the workload on your air conditioning system. The less your air conditioner has to work, the less energy it consumes and the lower your energy bills will be.

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What is Ductwork and How Do You Maintain It? A Guide From Lemon Grove

Friday, September 16th, 2011

Most first time homeowners in Lemon Grove are aware of the importance of their heating and cooling systems. They keep you comfortable throughout the year, pumping heated and cooled air into every nook and cranny of your home. However, there is another system in your home that actually makes it possible for those other two systems to work. And while they are incredibly simple, your ducts must be carefully maintained year after year to avoid heat and cooling loss.

How Ducting Works

Ducts are installed throughout your home to deliver conditioned air from your air handler. The air is pumped into the ducts and directed by your thermostat system to where it is currently needed. Vents are opened or closed to release that heat or cooling and the house is properly tempered. Ductwork is usually made of sheet metal, though some flexible ducting is made with a combination of plastic, thinner metals and fiberglass.

Ideally, ductwork is crafted in such a way that it is air tight and able to deliver large volumes of air to any room of your home for decades to come. However, whether because of improper installation or extreme conditions, sometimes those ducts can come loose or gaps will form. When this happens, maintenance and repair are needed.

How to Maintain Your Ducts

To maintain ductwork, you must first have it cleaned once a year. Sometimes, this may be necessary more frequently depending on how often you use your home comfort system and how big your home is. Effective duct cleaning will remove any excess debris and dust and kill mold that has started to grow. High humidity can be controlled with a dehumidifier in your air handler and is highly recommended for all ductwork systems.

Additionally, you should have your ducts checked for leaks and gaps periodically. This will reduce the chance that your ductwork starts to leak anything out of the house or between rooms. Such leaks cost you money and put undue stress on your HVAC system. Overall, a good ductwork system is one that you never have to think about. Regular maintenance makes that possible.

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Ductless vs. Duct Air Conditioning Systems in Pacific Beach

Friday, August 12th, 2011

When it comes time to pick out a new air conditioning system for your Pacific Beach home, you will have to make the choice between ductless and duct models. While both of these types of systems have their advantages, the specifics of your situation will go a long way to determining which one is right for you.

Ductless air conditioning systems are becoming more and more popular these days for a number of reasons. For one, they are generally considered more energy efficient than their ducted counterparts. Also, ductless systems are often cheaper and simpler to install, particularly in a house that does not already contain ductwork.

These types of air conditioners use refrigerant lines to connect the indoor unit or units to the outdoor compressor. The refrigerant lines take up much less space than ducts do and they also are much easier to install. Refrigerant lines can also reach into areas of your house that ducts may not be able to, making it possible for you to bring the benefits of air conditioning to places that did not have access to it before.

The indoor unit of a ductless air conditioning system can generally handle the cooling load of one or two rooms, but if you want to cool a larger space, it will be necessary to install multiple indoor units throughout the house. All of these units can connect to the same outdoor compressor and they can also be controlled individually. That means that you can set different temperatures in different parts of your house and you do not have to pay to cool the entire space if no one is occupying certain parts at the moment.

A duct air conditioning system also involves indoor and outdoor components. However, these elements are connected to each other by a system of ducts rather than by refrigerant lines. In a duct system, cooled air is brought inside from the compressor and then circulated through various ducts by the air handler.

The latest duct systems are quite energy efficient as well, and they can also be coupled with zone control systems to create different climate zones within your house. Particularly if you already have some ducts in place, a duct air conditioning system can be a great option for you.

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