The Clean Air Act Blog: Archive for the ‘Services’ Category

How Does Geothermal Energy Work?

Wednesday, January 11th, 2012

Geothermal energy is energy extracted from the ground. This energy is in the ground in the first place because the ground absorbs the heat coming from the sun. This heat is always there, even when it is very cold outside. In fact, even when the ground appears to be frozen, you can actually extract plenty of heat to keep your Tualatin home nice and toasty.

While this may at first appear to defy logic, the way that geothermal energy can be used for heating your home is actually quite simple. A geothermal heating system typically consists of an indoor air handler with a fan, a series of air ducts for the heated air to travel through and a closed loop of pipe that extends into the ground below and around your home.

This closed loop of pipe is actually where the geothermal heat is collected. Some type of liquid, usually water or antifreeze, will be continuously run through this pipe loop. As the liquid passes through the area of pipe that is below ground, it will absorb the heat from the surrounding soil. Once the liquid makes it back up to the air handler, the heat is able to disperse, heating the air in the chamber.

This heated air is then circulated throughout your house through the ducts by a fan. After it has released its heat into the air in your home, the liquid will cycle back into the ground to absorb more. This allows a geothermal heating system to provide you with a constant supply of warm air.

Unlike a furnace, which mixes in blasts of very hot air with periods of inactivity to try and keep your Tualatin house at a constant temperature, a geothermal heat pump is able to provide a more consistent flow of air that is just the right temperature to keep your home comfortable. This means that these types of heat pumps are running just about all of the time as opposed to furnaces, but they are designed to work this way and the constant operation does not cause any excessive wear and tear.

Another great benefit of geothermal heat pumps is that they are able to keep your house cool in the summer as well. Just as the ground is warmer than the air in the winter, it is also cooler in the summer. That means that heat removed from your indoor air can be transferred to the ground in the same way that it was transferred in during the winter.

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Will Switching to Geothermal Heating Save Me Money?

Monday, January 9th, 2012

There are simply a ton of different types of heating systems available for your Colton home and they are each more appropriate in different situations. However, some are certainly always going to be cheaper to operate than others, although that alone may not make one or the other right for you.

In the case of geothermal heating systems, the operating costs are definitely quite low. But those are not the only costs you will have to think about when you are considering what type of heating system to put in your home to keep your heating bills down.

Geothermal heating systems do not actually generate heat – they absorb it from the ground. Because of this, they actually use very little energy when they are running. All you are really paying to power is the fan that blows the heated air around your house. Also, because geothermal heating systems are more efficient at extracting heat in below freezing conditions than traditional heat pumps, they can continue to keep you warm on their own in more extreme conditions.

Traditional heat pumps, while they also cost very little to operate, do sometimes need to be supplemented by more conventional forms of indoor heating like a furnace when temperatures outdoors get too low. This is not the case with geothermal heat pumps, so if you live somewhere that has colder winters, a geothermal heat pump may be just what you are looking for. Of course, you can always opt for a furnace instead, but these will definitely cost more to run than either type of heat pump.

When you are trying to assess whether or not switching to a geothermal heating system will save you money, you first have to start with the heating bills you currently have. Then, factor in the cost of the geothermal heat pump installation as opposed to the installation of a more conventional system.

You are then in a position to see whether or not the amount the geothermal system will save you each month is enough to offset the higher cost of installation within a reasonable amount of time. Of course, the savings will always eventually add up over time, but if the length of time it will take you to break even is the same or longer than the expected life of the system, it is probably not worth it to invest in this type of heating.

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Troubleshooting Your Problematic Heat Pump

Friday, January 6th, 2012

If your Gladstone home’s heat pump isn’t working properly, there are a number of things that might be wrong. But, where do you start and how do you solve these problems quickly and inexpensively? Here are some tips for common heat pump problems.

Low Air Flow

Your heat pump is designed to provide steady air flow to the entire house. When it was originally installed, the technician sized it to do so. If it suddenly stops providing enough air flow to your entire house or if the air flow it provides isn’t as comfortable as you’re used to, something is probably wrong.

More specifically, there is likely an issue with the heat pump itself since the device will compensate for most external problems by running longer and harder. A quick inspection will often rule out serious problems, so you should have someone inspect your device as soon as you notice a problem.

Leaky Duct

If there is an external problem, such as leaky ductwork, it tends not to be as noticeable right away. Often, when ducts are leaking, air flow problems will occur only in certain rooms of your home. Even then, the heat pump might be able to maintain the right temperature in those rooms – you’ll just have a higher energy bill because of the energy loss in the ductwork.

The best way to determine what is happening and how best to tackle the problem is to have someone test your ductwork for leaks, a relatively quick process.

High Energy Bill

If your energy bill suddenly increases dramatically, it is usually due to energy loss somewhere in the transfer between the heat pump and the rooms of your home. Leaky ducts can be the culprit, but so too can the air handler or the heat pump itself. If you notice a sudden increase in your energy bill, look for other symptoms like uneven heating or cooling in certain parts of your home or noises coming from the ductwork or your air handler.

No matter what other symptoms accompany the increase, you probably need repairs. Your home may still be comfortable now, but the heat pump can only make up for the problem for so long and in the interim, it is being put under excessive stress that reduces its lifespan.

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How to care for your heat pump filter

Wednesday, January 4th, 2012

On the whole, heat pumps are efficient, durable and effective to have in your Estacada home. They are built to run all year round without needing any more maintenance than your average furnace or air conditioning system and they have an average lifespan comparable to those other types of home comfort systems as well.

That’s not to say that there aren’t things you can do to keep your heat pump in good working order, however. Keeping up with the professional maintenance visits is an important step to take along these lines to be sure, but there are also some other things you can do on your own as well to help ensure the continued efficiency and health of your heat pump system.

Proper filter care is an important part of keeping your heat pump working the way it should. If you don’t have a heat pump yet but are thinking of getting one, make sure you have the installation technician show you where the filter is located and how to replace it.

If your system’s already been in place for some time, you can still find out how to care for the filter from your annual maintenance technician or you can probably even find it on your own by taking a close look at your heat pump. The filters are meant to be removed on a regular basis so they’re typically not hard to get to. However, you should always be sure that all of the power to your heat pump is turned off before you open it up to try and find, replace or clean the filter.

Most heat pump filters are meant to be changed or cleaned about once every 90 days or so. However, the specific requirements for each system can vary considerably, so you should be sure to find out what is recommended for the model of heat pump that you have.

Also, you’ll want to know what type of filter you have so that you can purchase the appropriate replacement. The model number for each filter should be clearly printed on it, so simply slide your current filter out and make note of the number so that you can purchase the correct type as a replacement.

Most heat pumps have replaceable filters, but some still do have permanent filters that are meant to be cleaned and then returned to service. If you have one of these types of filters, be sure to read the instructions for cleaning carefully before proceding.

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Troubleshooting Your Furnace’s Air Flow Problems

Monday, January 2nd, 2012

Whenever you notice furnace air flow problems in your Mulino home, you can usually do a little troubleshooting and solve the issue on your own. Most air flow problems can be fixed easily and quickly. Here are a few guidelines to get you started, but if you need help or notice other problems with your furnace, call a qualifiedThe Clean Air Act Inc. heating technician.

Furnace Filters:
Checking the furnace filter is the first step you should take when there are any issues with your furnace, but especially with air flow problems. If a filter is dirty enough, the furnace will not come on at all. Ultimately, a clogged or dirty filter restricts the air flow, and this is the source of air flow problems ninety percent of the time.

Supply Registars and Cold Air Returns:
Once you’ve replaced or cleaned the filter, check your cold air returns, which are the vents that draw in the cold air in forced air systems. When a cold air return is blocked  by furniture or other obstructions, they cannot draw in enough air to allow the furnace to put out an adequate amount of hot air. Make sure they are open if nothing is blocking them.

Next, check your supply registers, which are the vents that supply the warm air, and make sure they are open as well. Whenever your heat is on, all of your supply registers should be open. Closing some vents will not increase the air flow in other vents in the house. Closing off one or two in areas where heat is not always needed will not hurt your system; however, when you close too many supply registers, it can cause problems with the ductwork and eventually damage the furnace if the air pressure is not correct.

Clean Your Vents:
You should have a qualified Mulino HVAC technician professionally clean your ducts and vents at least once a year, which is another reason it’s important to schedule annual maintenance visits. A professional cleaning is typically part of the yearly heating system inspection. You can help by vacuuming your vents regularly, particularly during the months the heating system is not in use, or at least before you turn it on in the fall. Simply cleaning your vents can help air flow and extend the life of your entire heating system.

If you continue to experience air flow problems, call a certified heating technician at The Clean Air Act Inc.. There could be a more serious issue, or if you have a newer furnace, your original ductwork could be the wrong size for that furnace model.

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Happy New Year’s Eve from Your HVAC Contractor!

Saturday, December 31st, 2011

Happy New Year’s Eve! Have a great time welcoming the New Year tonight! We hope that you are able to achieve all of your resolutions for this upcoming year. Fun fact: the ancient Babylonians were the first to establish the tradition of New Year’s resolutions. That means that people have used this time of year to set goals for themselves for thousands of years!  If one of your resolutions is to be more environmentally friendly, remember that an upgrade to your HVAC system can make a big difference in your house’s energy efficiency!

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Furnace Air Temperature

Wednesday, December 28th, 2011

When your furnace turns on every day and warms your Gladstone home, just how hot is the air being blown through your vents? It’s a common question and while it varies depending on the type of furnace you have and the length of your ductwork, normally, the air is about the same temperature in most homes.

The Heating Process

When you turn on your furnace, it ignites fuel (gas or oil) or heats elements (electricity). A blower fan blows air through the heat exchanger and then into ductwork that distributes the heated air to vents around your home. When the combustion occurs and air is first heated, the temperature is between 140 degrees F and 170 degrees F.

This is extremely warm and could be dangerous to anyone if they got too close to it or it was blown directly into your home. However, as the heated air is distributed into your home it starts to cool. In some cases, it loses a significant amount of its energy in the ductwork.

This is intended, of course, because the temperature would be much too high if it was distributed directly to your rooms. That’s why high velocity ductwork often requires regulation to avoid overheating of the air. Cooling like this is normal and results in a better, more evenly distributed airflow.

When Something’s Wrong

To know something is wrong with your heating system, you must first understand what temperature air normally is when distributed through the vents. This will vary depending on which room you are in and how big your home (and furnace) are. However, if you notice a sharp drop off in comfort level in your home, it takes longer to heat rooms when cold or if that heating is suddenly uneven, it may be time for someone to inspect your furnace and check for potential problems.

A technician will then check to see if the air is being heated to the target 140-170 degrees F or if heat is being lost in the air handler or ductwork. There are a number of issues that can contribute to lost heat in your heating system – the easiest way to be sure the problem is solved properly is to call a professional when you notice the problem.

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High Efficiency Furnaces and Chimney Concerns

Monday, December 26th, 2011

When upgrading to a high efficiency gas furnace in Portland, you may need to make some upgrades to your chimney. Older chimneys built for standard furnaces with normal exhaust needs are not built to the specifications needed by today’s high efficiency models. Not only is it unsafe to leave it as is, but the cost of repairs if you don’t have it upgraded can be substantial.

Down-Sizing

A common concern when upgrading to a high efficiency gas furnace is the issue of condensation and draft. Because the amount of exhaust being vented is reduced by a high efficiency furnace, your current setup is not sufficient for the new model. So, it needs to be reduced in size by a professional to avoid backup of exhaust. Proper chimney sizing is a complex process that requires professional guidelines and careful measurements of all appliances in your home.

Because the chimney often isn’t used at all for a high efficiency furnace (often PVC pipe used instead), the extra airflow in the chimney can become a major issue.

Chimney Condensation

The biggest concern for the chimney when changing the furnace efficiency is condensation. Specifically, acidic condensation droplets can build up in the chimney if not properly stopped. A new chimney liner must be placed in the chimney to avoid excessive corrosion due to the acid droplets. Keep in mind that the efficiency of your new furnace will determine whether you will use the traditional chimney for exhaust or if a new line will be installed to vent your furnace.

When to Take Action

If you have your furnace replaced, your technician will likely discuss the chimney situation in your home with you. Keep in mind that this might be necessary and that there might be an added cost involved because of it. Modern furnaces are not designed to accommodate aging chimneys and your safety and the integrity of your house are at risk if you don’t retrofit the chimney if necessary.

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Merry Christmas Eve & Happy Holidays from Your HVAC Contractor!

Saturday, December 24th, 2011

Merry Christmas everybody! Santa is delivering presents tonight and we hope you get everything you want under the Christmas tree. The holidays are all about spending time with your friends and family, we hope you have a great day full of love and laughter. To help make your Christmas as happy as it can be, here is a recipe for Whole Wheat Ginger Snaps:

Whole Wheat Ginger Snaps

“Spicy and chewy Ginger Snaps made with all whole wheat flour. Yummy!!”

INGREDIENTS:

1 cup butter or margarine

1 1/2 cups white sugar

2 eggs, beaten

1 cup molasses

4 cups whole wheat flour

1 tablespoon baking soda

2 teaspoons baking powder

1 tablespoon ground ginger

1 1/2 teaspoons ground nutmeg

1 1/2 teaspoons ground cinnamon

1 1/2 teaspoons ground cloves

1 1/2 teaspoons ground allspice

1 cup white sugar for decoration

DIRECTIONS:

  1. Preheat the oven to 350 degrees F (175 degrees C). Grease cookie sheets.
  2. In a large bowl, cream together the butter and 1 1/2 cups of sugar until smooth. Mix in the eggs, and then the molasses. Combine the whole wheat flour, baking soda, baking powder, ginger, nutmeg, cinnamon, cloves, and allspice, heaping the measures if you like a lot of spice. Stir the dry ingredients into the molasses mixture just until blended.
  3. Roll the dough into small balls, and dip the top of each ball into the remaining white sugar. Place the cookies about 2 inches apart on the cookie sheets.
  4. Bake for 10 to 15 minutes in the preheated oven, until the tops are cracked. Bake longer for crispy cookies, less time for chewy cookies. Cool on wire racks.

For more details, visit allrecipes.com.

And if you haven’t done so yet, remember schedule the annual maintenance of your heating system. Maintenance will cut down on future repairs and keep your system working as efficiently as possible, saving you a lot of money in the long run. Don’t be left out in the cold this winter!

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Heating Guide: Heat Pump Load Calculation

Wednesday, December 21st, 2011

When purchasing a heat pump, the first thing you should do is determine what type of heat pump you want and how big it needs to be to provide ample heating and cooling to your Hillsboro home. If you’re unsure what you need, here are some tips to size a heat pump for your home’s particular needs.

The Importance of Sizing

Before buying anything, consider the cost of an oversized heat pump. A lot of homeowners opt for the biggest device on the market, but they don’t realize that they’re paying more than necessary for their device. An oversized device cycles on and off more often than is necessary and wears down much faster, resulting in an increased electric bill and faster wear on the device. It’s not good for your heat pump or your wallet.

How to Size

To correctly size a heat pump, the first step is to perform a load calculation. This is done by measuring the total volume of the rooms being heated (in cubic meters) and then determining the heating factor based on the type of insulation used.

There are different measurements depending on the type and R-rating of your insulation. For example, a single external wall without any additional insulation has a heating factor of 15. The number of external walls, the insulation in those walls and/or the ceiling and the rating of the insulation will determine the total heating factor for the room.

You will then divide the room volume by the heating factor to determine the number of KW (converted to BTUs) needed to heat that particular room.

Professional Sizing

The reason it is so important to call a professional is that certain things, like poorly insulated windows, cracks in the foundation, leaks in the ducts and other issues can have an impact on the overall heating factor measurement. Additionally, the type of heat pump you choose must be effective when connected to an air handler for your entire home. A professional can make these measurements and ensure the right sized device is selected.

If you’re unsure about anything related to sizing and selecting a new heat pump for your home, call a professional in. They will perform a full load calculation and present your options for a new heat pump based on those calculations.

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