The Clean Air Act Blog: Posts Tagged ‘Gresham’

Most Commonly Asked Questions About Heat Pumps

Monday, November 28th, 2011

If you’re thinking about buying a new heat pump for your Gresham home, chances are you have some questions about these types of products and how they work. In fact, because these types of home comfort systems are relatively new to a lot of people, there are a quite a few misconceptions out there about how effective and efficient they can be.

Recently we’ve gotten some good questions from our readers, so we thought we’d like to pass along the answers so that others can benefit from the information as well.

If I Buy a Heat Pump, Do I Have to Buy an Air Conditioner Too?

That heat pumps are only able to heat your home is probably one of the biggest misconceptions about this type of equipment. Heat pumps work by extracting heat from the air in one place and transferring it to another. That means that in the winter, your heat pump is able to heat your home by taking heat from the outdoor air and moving it inside.

However, in the summer, the heat pump is able to do the same thing only in reverse. When you switch on your heat pump’s cooling function, it will be able to take the heat out of your indoor air and transfer it outside. In this way, the same heat pump system can keep your home warm in the winter and cool in the summer without you needing to purchase an air conditioner or other supplemental comfort systems.

If I Choose a Heat Pump System, Will I Also Need to Install Supplemental Heat?

That depends on what the climate is like where you live and how warm you like to keep your home. In general, heat pumps can keep any home comfortable as long as the outdoor temperature is above 32°F or so. If the temperature outside drops below that, you may want to have some type of supplemental heating system just in case. However, a heat pump will still be able to provide some warmth at these lower temperatures and you may be able to keep yourself comfortable with a simple space heater or two.

Also, remember that these colder temperatures are most common at night when you would probably have turned your heat down anyway. As long as you live in a relatively moderate climate, heat pumps can do a great job of keeping your home comfortable all year long.

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Is Geothermal Energy Renewable?

Friday, November 18th, 2011

Geothermal heating systems take heat from the ground and transfer it to your Gresham home. But how does this heat get into the ground in the first place? Conventional heating systems like furnaces use energy sources like oil or natural gas to generate heat. These energy sources are not renewable, and neither is electricity which is typically generated by burning coal or another non-renewable resource.

The renewable resources we usually think of first are solar and wind power. The sun, of course, will continue to shine and provide heat year in and year out whether we make use of it or not. Similarly, we cannot use up the wind. It will continue to blow no matter how many times it has blown before.

But what category does geothermal energy fit into exactly? Well, it is actually a renewable resource just like solar or wind energy. In fact, geothermal energy is a direct result of the sun’s heat relentlessly pounding the ground. The ground actually absorbs a considerable amount of the heat from the sun that reaches the earth every day, and that is the heat that your geothermal heating system is using to heat your home.

Of course, a geothermal heating system cannot run on geothermal energy alone. The indoor components of this heating system that keep the air flowing throughout your house must be powered by electricity. But the amount of energy needed to do this is much less than what you would need to use to run a furnace or other type of more conventional home heating system.

Over all, geothermal energy is an excellent and renewable source of energy. And once you have the heating system in place, you will need to spend very little to keep it up and running. It is an excellent option for many people, and can help to keep your home cool in the summer as well.

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4 Ways to Improve IAQ and Reduce Air Pollution

Friday, September 23rd, 2011

Your Gresham home could be  a haven for pollutants that can cause irritation to the upper respiratory system of anyone who comes inside. These allergens and pollutants are easy to remove however by taking some simple steps such as the four listed below:

  1. HEPA Filtration – Step one is to use HEPA filtration to remove as much of what is on the floor as possible through vacuuming. HEPA vacuum cleaners can remove years of cleaners, solvents, dander, mineral build ups and other toxins that tend to accumulate in spaces that normal vacuums cannot reach. It may be a bit of an investment, but a high powered vacuum cleaner can have a tremendously positive impact on your lifestyle and reduce pollutants.
  2. Stop Outside Stuff from Coming In – Some of the worst pollutants your home will face are from outside. So, make sure you have doormats at every door and that your family and friends remove their shoes before coming inside. You can have a second mat inside as a friendly reminder that cleaning the shoes is not an option but a strict necessity.
  3. Humidity Helps – Humidity levels between 30% and 50% reduce the presence of dust mites, molds, bacteria and many other indoor pollutants. Air conditioning in the summer is helpful to reduce humidity, though a dehumidifier is recommended for those days when the temperature doesn’t justify full blown air conditioning. Additionally, look for sources of excess humidity like leaky pipes, standing water, or clothes drying.
  4. Cut the Chemicals – There are a number of high quality household cleaners that don’t contain chemicals. Avoid ammonia, bleach and other chemical laden cleaners that can inflame allergies and pollute the water supply. Your home will be just as clean and you won’t feel uncomfortable afterwards.

Proper cleaning and careful selection of compounds and what goes into your air will help you avoid creating new air quality problems in the house. Done right, this process will make everyone in your home feel more comfortable.

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Air Conditioners and Energy Use by Percentage

Wednesday, August 31st, 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 West Linn. But did you know that all air conditioners 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 Features Should I Look for When Buying an Air Conditioner?

Friday, August 12th, 2011

There are so many different types and styles of air conditioners on the market these days in Gresham, it can be difficult to figure out what features are worth paying attention to when it comes time to buy one for yourself.

Of course, the most important thing to do is make sure you get an air conditioner that’s appropriately sized for the space you’re trying to cool. But what should you look for beyond that? Here are a few features you might like to have on the unit you purchase:

  • Energy Efficiency – The more energy efficient your air conditioner is, the less your cooling costs will be. It’s as simple as that. So when you’re evaluating devices, remember that it’s worth paying a little bit more up front for a more energy efficient unit. It will save you money in the long run and you’ll be doing your part to help the environment.
  • Dehumidification – Just about every air conditioner controls humidity to a certain extent in addition to cooling. But some do this better than others. There are also air conditioners with separate dehumidification settings for those days that are more humid than hot. Even when you need both cooling and dehumidification, it’s nice to have control of each of these independently.
  • Timer – Being able to program your air conditioner to switch on and off at different times of day is more than just convenient; it will save you money. You don’t want to leave your air conditioner running all day when you’re not home, but it sure is nice to come home to the comfort of an air conditioned space. If your air conditioner has a timer, you can have both. Just set the unit to come on a half hour or so before you get home and you’ll enjoy cool, refreshing indoor comfort right when you get home without paying through the nose to keep your home cool when no one is there.
  • Easy-to-Use Controls – As simple as this one seems, you might be surprised at how inconvenient the controls on some air conditioners can be. So when you’re evaluating your options, make sure you research how easy each unit is to operate. This can definitely save you from plenty of frustration in the long run.

Air conditioners come in many different shapes and sizes. To make sure your decision works best in your home, do your research well in advance. When the summer heat kicks in, you’ll be glad you did.

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Heat Recovery Ventilator – What Is It and When Do You Need It?

Friday, June 17th, 2011

While the design of modern homes is to retain as much energy as possible while minimizing the cost of heating and cooling, that very design can have a negative impact on your indoor air quality. Because air cannot pass freely between indoor and outdoor environments, you are stuck breathing the same air day after day.

Luckily, there are t options that will exchange the heat in your indoor air to the outdoor air as it enters your home. In effect, you can retain all of the heat your home produces each day before it leaves the house. It works equally well in the summer to retain the cooled air your air conditioning units produce.

How Heat Recovery Works

Heat recovery ventilators come in many forms, including simple ventilation, heat exchange, or air exchanging. There are even some indoor heat pumps that will carefully draw heat from the air as it’s removed from your home and recirculate it through your air ducts.

The idea is the same no matter how the system is installed. As air leaves your home through a ventilator, a counter-flow heat exchanger transfers energy between the air leaving and entering your home. So, instead of warm air leaving and cold air entering, the air coming into your home takes the heat from the air leaving your home. Air comes and goes, but heat stays inside.

In the summer, the same system works in reverse to remove heat from the air coming into your home and keep it outside. The one thing to keep in mind with a heat recovery ventilator is that it doesn’t retain the humidity in your home as an energy recovery ventilator would. If you live in an area with very high or very low humidity during summer or winter, an ERV may be a better solution for your needs.

Air Quality Benefits

The goal of a good heat recovery ventilator is not just to retain the heated or cooled air in your home. It is also to ensure you have clean, fresh air to breathe each day. Most people don’t realize, but when you don’t circulate your air and your home is sealed up with enhanced weather-stripping and high quality insulation, unwanted contaminants begin to build up. A heat recovery ventilator makes sure you not only get fresh air, but that it’s properly filtered and the heat or cooling your comfort system produces is retained. No money is lost, energy is saved, and your family stays comfortable and healthy – everyone wins.

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