Saddleback Plumbing Heating & Air Blog: Archive for February, 2012

How to Calculate Duct Size for an AC System in a Los Alamitos Home

Wednesday, February 22nd, 2012

Duct sizing in Los Alamitos is a complex process using one of three methodologies. The goal of duct sizing is to provide the perfect space through which heated and cooled air can travel around your home. Ducts should provide ample air flow to keep you comfortable without overworking your HVAC system or costing you an arm and a leg on your energy bill.

Methods Used for Sizing

There are three methods used for most modern duct sizing. The first is the Velocity Method. The velocity method takes into account the speed at which air flows through the ducts based on their general size. A series of equations is used to determine this, including duct cross sectional area, air flow rate and air speed. A much more detailed breakdown is available on the EngineeringToolbox.com for those interested in the math behind the process.

In general though, the velocity method allows contractors to determine the appropriate size and layout of ducts based on their application (residential, commercial, industrial or high speed) and their position (main or branch ducts).

Contractors may also use the Constant Pressure Loss and Static Pressure Recovery methods to design ductwork for your air conditioning installation. The constant pressure loss method tends to result in more components but provides a more accurate reading of the actual pressure loss in the system based on the materials used and the layout of your ductwork.

Static pressure recovery focuses on ensuring the same pressure level is achieved at all vents and inlets for the system. It is probably the most complicated sizing method, however, so it is rarely used for air condition system installations.

Simplifying the Process

Were we to break down the process into its core components, this is what a contractor would do when sizing your duct work:

  • Determine CFM for Each Room – using the Manual J for load calculations, they would determine the CFM. This is based on the (Room Load/House Load) x Equipment CFM. The entire house must be measured and load calculations completed before this can be done.
  • Friction Loss Rate – Friction loss rate is the (Available Static Pressure x100 / Effective Length).
  • Duct Sizing – Finally, the contractor will use a chart or software to select ductwork based on the friction loss and CFM calculated in the first two steps.

The goal of all of this math is to ensure that the HVAC system installation is exactly as large as is necessary to distribute heated or cooled air to the entire house. Incorrect measurements result in improper delivery of that air and a system that doesn’t quite get the job done.  If you have any questions about this process please contact Saddleback Plumbing.

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The Room by Room Benefits of Ductless Splits AC

Friday, February 17th, 2012

Ductless splits air conditioners are designed to eliminate the need for ductwork in a San Juan Capistrano home where space is at a premium. Usually homeowners with older homes – those built before the 1970s – have very little space to work with when it comes to installing the ductwork a traditional central air conditioning system requires. These homes are often heated with radiant boiler systems and have window units to provide cooling in warmer weather. As a result, cooling costs can be extremely high each summer and the house usually isn’t comfortable during these months.

Ductless air conditioning offers a solution to most of these problems. Not only does the technology not require ductwork to be installed; it allows for multiple in-room units on a single compressor and it costs significantly less to operate compared to window AC units.

Ductless System Specifications

Ductless air conditioning systems consist of two major components: a compressor which is placed outside and indoor evaporators. With the use of inverter technology, these systems can support multiple evaporators – usually as many as four to a single condenser. This means you can have a single outdoor unit supporting cooling four separate rooms of your home at the same time.

Each of those indoor evaporators acts as a heat pump, allowing you to both heat and cool the room year round. And because the only connection needed between evaporator and condenser is a single refrigerant line, the cost of installation is significantly lower than it would be for a ductwork based central AC system.

Room by Room Benefits

While the primary benefit of a ductless system is the fact that it allows you to install air conditioning in multiple rooms of your house without the need for ductwork, there are other benefits. Not only do you get a much higher energy efficiency rating than you would with traditional window units (many ductless systems are rated at 16 SEER or higher while window units are frequently as low as 10 or 11), but you can control each unit individually. So if a room upstairs doesn’t need to be cooled during the afternoon hours, simply turn off the thermostat in that part of the house and save money.

There are some factors to consider when installing a ductless system. How many rooms do you need cooled? How warm does it get in the summer? Will the system be used for heating in the winter? These are all things you may want to discuss in greater detail with your contractor when you call for an estimate.  To Answer these questions please call Saddleback Plumbing ASAP.

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Happy Valentine’s Day from Your Orange County Plumbing Experts

Tuesday, February 14th, 2012

Everyone at Saddleback Plumbing wishes you a Happy Valentine’s Day! Valentine’s Day is all about showing your appreciation for your loved ones. Whether it is your significant other, your family, or your friends, today is a great day to let them know how special they are to you. A handmade card, a bouquet of flowers, or even a simple phone call can make someone’s whole day.

If you are thinking about a big gift for your family, an upgrade to your kitchen plumbing might not be the most romantic gift, but it is a gift that keeps on giving! A new garbage disposal will make doing the dishes much easier, or new faucets could give your whole kitchen a bright new look. Give your kitchen an upgraded feel that your whole family will appreciate!

Call Saddleback Plumbing to learn more about how some plumbing upgrades could improve the comfort level in your home. And to make your Valentine’s Day a little sweeter, here is a recipe for Chocolate Covered Strawberries

INGREDIENTS:

16 ounces milk chocolate chips

2 tablespoons shortening

1 pound fresh strawberries with leaves

DIRECTIONS:

  1. Insert toothpicks into the tops of the strawberries.
  2. In a double boiler, melt the chocolate and shortening, stirring occasionally until smooth. Holding them by the toothpicks, dip the strawberries into the chocolate mixture.
  3. Turn the strawberries upside down and insert the toothpick into styrofoam for the chocolate to cool.

For more details, visit allrecipes.com.

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DIY Plumbing Tip 1: How to Install a Toilet

Monday, February 13th, 2012

A toilet is a relatively basic piece of bathroom plumbing equipment for a Corona Del Mar resident to install, but that does not mean that installing it is easy. This is certainly a plumbing maintenance that many people can do on their own, but you should be prepared to devoting the majority of your day to the project. While the installation itself is not terribly complicated, it is quite important that you get it right, so make sure you have all of the necessary materials, equipment and tools before you begin.

The first thing to remember is that you need to install your toilet in an appropriate place relative to the rest of your bathroom plumbing. Especially if you are installing your toilet along a branch drain, make sure that the sink, shower and any other plumbing fixtures are upstream of the spot where you will be installing the toilet.

You will also need to make sure that you install the toilet an appropriate distance from the wall. You need to be able to get around the toilet, and you also want to leave space so that work can be performed on the unit later. Putting your toilet too close to the wall can cause all kinds of complications in the way the unit functions and there is also a possibility of condensation build-up. For all of these reasons, it is important to make sure you are allowing an adequate amount of space on all sides.

The procedure you will have to follow when installing a toilet will be slightly different depending on whether you are installing it in a new spot or simply replacing an existing unit. When replacing an old toilet, you need to remove everything involved in the previous installation. That means taking the old bolts out of the floor and scraping away any residue to ensure that you have a clean and even surface to begin your installation on.

You should also make sure that you are aware of all applicable local codes before you begin your work. Even if you technically install your toilet correctly, you could run into trouble later on if your installation is not actually up to code. It is also important to remember to level all of your fixtures before you complete the installation process and to make sure you use a dielectric or brass fitting when attaching galvanized steel and copper to each other.  If you have any questions about this process please call Saddleback Plumbers

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Types of Humidifiers for Orange County Homes

Friday, February 10th, 2012

Even when you know you need a humidifier for your Orange County home, it’s hard to pick out just the right model. Humidifiers aren’t terribly complicated pieces of equipment, but they do have subtle differences that make one type more appropriate for your home than another. That’s why it’s a good idea to learn a bit about your humidification options before you go out and buy a humidifier. It’s also helpful to talk to an HVAC professional about your options so you know better how to select the right humidifier for your home.

One of the first decisions you’ll make when shopping for humidifiers is whether you want one that produces warm or cool mist. Both types of humidifier are appropriate under certain circumstances, so you’ll have to take the particulars of your home and situation into account when making your decision.

Warm Mist Humidifiers

Warm mist humidifiers are an excellent choice if you regularly battle dry air in the winter months. Because a warm mist humidifier needs to heat the water, it generally uses more energy than a cool mist unit.

Some warm mist and steam humidifiers can also cause burns because the water vapor is very hot when it comes out of the unit, so it’s important to keep kids and pets away from these types of units. Larger humidifiers can be installed in out of the way places such as your basement to reduce risks, but it’s still a good idea to discuss your options with a professional before installing a warm mist model.

Cool Mist Humidifiers

Cool mist humidifiers, on the other hand, use very little energy because they don’t actually heat the water they introduce to the air. There are several methods that cool mist humidifiers use to turn water into water vapor including a wick, an impeller and an ultrasonic system. If you have small children or if you need to humidify a large area in your home, a cool mist humidifier might be just what you’re looking for.

These units are usually cheaper to run than their warm mist counterparts, but they are also noisier and their air filters need to be changed regularly. That isn’t as much of a problem with a warm mist humidifier, however. Because you heat the water before it is spread throughout your home, most contaminants are removed or killed and filtration isn’t as important.

Whichever type of humidifier you choose, rest assured that your family will be more comfortable and healthier all winter.  If you need any more help with making this decision please contact Saddleback Plumbing and Heating.

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What Dana Point Residents Can Do When a Heat Pump Isn’t Operating Properly

Wednesday, February 8th, 2012

A heat pump in Dana Point is designed to provide steady, reliable heat in your home throughout the year. So, what do you do when your heat pump suddenly stops producing enough heat? The first step is to figure out why exactly your heat pump has stopped working properly. From there, you can take action to get it back on track.

Reasons Your Heat Pump Isn’t Producing Heat

There are a number of reasons a heat pump might stop producing enough heat. Here are some of the most common ones you’ll encounter:

  • Too Cold Outside – A heat pump can only handle temperatures so low. Most heat pumps are rated for outside temperatures as low as 40 degrees F (though they work best at 50 degrees F and up). If the outside temperature gets below the 37 degree F mark, it’s likely the system won’t be able to produce enough heat. Remember, however, that you should have an emergency heat source. If it isn’t on but the outside temperature is below 37 degrees F, you may have a problem with the outdoor thermostat or emergency switch.
  • Fans – The fans on your heat pump may not be working properly. Simply check this by increasing the thermostat setting on your heat pump. If the fan never comes on, there could be an electrical or mechanical problem in your fan.
  • Thermostat Readings – A simple problem that can stall your heat pump is thermostat failure or calibration problems. Check the thermostat to see if it is working properly and if not, call a professional.
  • Refrigerant – If the refrigerant gets low in your heat pump, you may need to have it recharged. This is a quick and relatively inexpensive process so call for professional assistance as soon as you notice the problem.

If your heat pump isn’t working properly, don’t wait for it to break completely or for the temperature outside to become unbearable. Contact Saddleback HVAC experts for help immediately and get your heat pump fixed before it’s too late. Even a seemingly simple problem can quickly turn into a major issue if it isn’t dealt with immediately.

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Quick Tips to Save Money on Air Conditioning

Monday, February 6th, 2012

In Orange County you’ve probably heard once or twice that the cost of running your air conditioner is more than that of any other single electrical device in your house. That means you’re spending hundreds and possibly even thousands of dollars each and every year to stay cool. It’s well worth the investment as the risk of not having air conditioning is much too high, but there must be ways to cut the costs, right? Read these quick air conditioning maintenance tips below, there are some things you can do to slash those costs. Here are a few of the easiest:

  • SEER Matters – What is this magical acronym you hear so much? SEER refers to how many BTUs your air conditioner can produce with a single watt of electricity. A low SEER device therefore uses a LOT more electricity to produce the same volume of cooling as a high SEER device. Since current devices offer SEER of 13 or higher (some are up to 20+), just about any upgrade will save you money relatively quickly if your current air conditioner has a rating of 8 or lower.
  • Program Your AC – If you have a single point analog thermostat, you’re wasting a LOT of electricity. You’re either paying to cool your house while it’s empty or you’re coming home to a roasting hot living space. Purchase a programmable unit and set the system to 85 degrees when you’re not home. With timers in most digital units, you can tell it when you’ll be home so that you walk into a cool, comfortable space without having to keep it cool all day long.
  • Use the Landscape to Your Advantage – Instead of relying solely on your air conditioner to keep the house cool in the summer, plant some trees and shrubs around the house to block the sunlight. Simply adding some shade to your property can directly reduce how much heat your home absorbs throughout the day and reduce how much your AC unit needs to work to keep you cool.
  • Ventilate Your Roof – A good third of the heat in your home is absorbed directly through the roof. To keep this heat from affecting the rest of your home, install a roof fan that ventilates the excess energy and keeps the attic at a steady temperature. Less heat up top means less cooling needed down low.

A good air conditioning system is effective no matter what the temperature does, so it’s easy to forget how big your bill will soon be. To avoid an overblown bill, keep an eye on your cooling and follow these simple tips to cut back on use.

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When Should You Check Your AC Filters non a Regular Basis

Friday, February 3rd, 2012

In Orange County the filters on your air conditioning unit are vital for keeping out the dust and debris that make things like illness, allergies and air quality worse. And it’s important that you take personal responsibility for checking those filters. Sure, you have a professional visit your home once a year to check the air conditioning, but you should also check the indoor air quality yourself on a semi-regular basis for possible filter degradation.

Monthly Checks

So, how often should you check? Think of it this way. There is no such thing as checking too much, but you can easily not check often enough. So, we recommend checking your filter at least once every 4 weeks. It may not always need to be changed during that four week checkup (sometimes it can last 6 weeks or longer), but it’s good to take a peek.

Why is this so important? Because filters that haven’t been checked and changed as needed have a habit of building up excess sediment and debris. Not a problem when it comes to actually working, but a huge problem when it comes to your energy bill. The harder a system has to work to keep you house cool, the more energy it draws and the more you pay to have cool air in your home. And it will break down much faster as a result of overwork and dirty filters.

Changing an AC Filter

If your filter is ready for a swap, here are some quick tips to get the job done:

  • Find Your Filters – If you don’t know where your filters are, ask your contractor on the next visit or look near the return grills by the thermostat.
  • Remove the Filters – Open the latches and pull the old filter out to check it. You should be able to see clearly through a permanent filter and a disposable one should still be white. If this isn’t the case, it’s time for a cleaning/replacement.
  • Clean the Area – Clear the grill and area of any debris and sediment that might make the filter worse after replacement.

Proper filter maintenance only takes five minutes and it will save you money every month you run your AC – not a bad deal for a few minutes’ work.

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What to do Before Turning on AC for First Time in Orange County

Wednesday, February 1st, 2012

The weather is starting to heat up in Orange County and you are eager to flip the switch on your air conditioning system for the first time. It’s been sitting there, waiting to be used, but now you wonder if there are any tasks that should be completed before its first use. Depending on the type of system you had installed there are a few things you should keep in mind before you cool down your house. They include:

  • Outdoor Cleaning – First, make sure the outdoor unit (if you have a central AC system) is cleaned up nicely. Clear away any leaves, remove the cover and check the system for any growth or debris that might have gotten under the cover. Check the air supply registers to make sure they are open and either replace or clean your filters depending on whether they are permanent or disposable.
  • Check Your Thermostat – The thermostat should be checked before you start using the system. To do this, set the system to Auto-cool and then lower the thermostat setting to one degree lower than the actual temperature in the room. If the system turns on, the thermostat is working properly. Let it run for a few hours to make sure this stays consistent.
  • Clear Away Winter and Spring Dust – Now that your system is running, make sure you check the filters for any buildup of dust that was in the ductwork. Over the off season, your ducts might develop a layer of dust and debris, especially if your heating system doesn’t make use of them. The filters might clog quickly as a result.
  • Check for Water Leaks – Your condensate overflow drain should work properly as well – check for any potential leaks during the first 48 hours of operation. Even a small leak should be checked immediately to avoid potential problems as summer cooling season kicks in.

If you notice any problems other than those listed above, you should call a service professional immediately. Ideally you will have your system inspected in early-mid spring to ensure it is ready for the summer, but even so problems can develop between inspection and first running. Electrical issues especially should be checked immediately.

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