Archive for the ‘Indoor Air Quality’ Category

Why Choose a Programmable Thermostat?

Monday, May 23rd, 2011

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There are many types of thermostats available for your home, but which is the best for your particular needs? It depends largely on how often you are home, how many rooms you have and how people in your house use each of those rooms.

A programmable thermostat in particular is a great option because it allows home owners to control when and how much heat or cooling is introduced to their indoor air. Normal thermostats lack this level of control, largely because they are built as simple switches that flip on whenever your temperature gets too low or too high.

Situations for a Programmable Thermostat

When you leave your home every day, you have two options. Either set the heat and AC so you’ll be comfortable when you return, or turn them off completely and suffer through the first half hour or so when you get home that night.

If you choose the former, you’ll pay a lot more in energy bills to heat or cool an empty house. And if your humidity levels need controlling as well, this may be your only option. Those in the second camp are forced to endure uncomfortable temperatures right when they get home and want nothing more than to relax. Not much better.

That’s why so many homeowners are opting for programmable thermostats to overcome this issue. With a programmable model, you can actually tell your home’s comfort system when to turn on and off each day, depending on when people will be there. Imagine going on vacation for three or four days and coming home to a nice and toasty living room and a smaller heating bill to go with it. That’s the kind of control a programmable model offers.

Zone Control and Beyond

Some programmable thermostats even allow you to section your home off into zones and choose specific temperatures for different areas of the house. This allows a great deal more control over when and how your system will operate each day, depending on the individual comfort needs of your family.

If you’re making dinner and don’t want the heat blasting you while you’re standing over the stove, just set the kitchen temperature lower. And with a programmable thermostat, you can tell it to come back on an hour after you leave the kitchen so that it’s comfortable later when you need a glass of water.

How Bad Is the Air in Your Home?

Friday, May 20th, 2011

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Every day you hear about another awful contaminant that can get into your home’s air supply. Radon gas. Carbon Monoxide. Nitrogen Dioxide. Smoke. Mold. The list gets longer with each passing year and many homeowners are understandably worried. However, before you run out and by the newest lineup of filters, purifiers, and UV lights, stop and think about just how bad your indoor air actually is.

When Was Your Home Built?

Homes built in the last 10-15 years tend to be well ventilated and may even have air quality systems already in place. It’s those built in the late 1970s and early 1980s that tend to have the worst ventilation (assuming they have not been updated since then).

This kind of poor ventilation can be dangerous, but usually only in that you have less fresh air and more indoor allergens and contaminants. Specifically, you’re most likely to suffer from things like pet dander, dust, pollen, and dirt in the air. On their own, these are not dangerous, but without fresh air to circulate them outside and ensure you get a steady, clean supply of air to breathe, they can make you ill.

How Bad Can It Get?

While it’s rare, some homes suffer from more advanced contaminations. The most common is mold. Mold grows primarily in dark, damp spaces. If your humidity levels get too high in the summer, the ductwork in your house is perfect for mold and it will blow the spores directly into your air, putting everyone at risk.

You should also be wary of exhaust fumes from your appliances that may not get properly removed from the house. Both of these problems can be fixed with regular duct and exhaust cleaning.

Outdoor contaminants can also make it into your indoor air. Things like exhaust and smoke, gas, radon, or other outdoor pollutants should be tested for when you setup a new indoor air quality system. There are filters and purifiers that will remove almost all of these contaminants, but they are not always required, so you should check before making a decision.

Ultimately, the odds are that your home suffers only from some stale, dusty air. But, it is very important to keep everything clean and test it regularly to make sure nothing worse develops. Poor air quality is about more than just comfort – it’s an honest health issue.

Moisture Barrier for Basement Floor

Friday, April 8th, 2011

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One of the most frustrating aspects of a basement, even when it’s finished properly, is the sheer volume of moisture that builds up throughout the year. Because of the natural properties of changing temperatures, the shift in indoor and outdoor environments will cause condensation in your basement which can be damaging not only to your home but to the items you store there.

A moisture barrier is designed to block and redirect moisture away from the things you care about. By keeping moisture outside of your basement, a moisture barrier blocks the buildup of condensation on your basement floor.

Signs You Need a Moisture Barrier

Not everyone needs a moisture barrier. Some basements are better insulated than others. However, if you notice that your basement undergoes a severe shift in humidity and condensation as the weather changes, you should act quickly before it causes damage.

Specifically, look for symptoms that your basement has too much moisture. Rust on your appliances is a big sign of excess moisture, especially above the ground where standing water might occur. Another symptom is mold growing on the wood frames of windows or underneath stairs. If you notice damp spots on foundation walls or peeling paint these are also signs of excess moisture in your basement.

Installing a Moisture Barrier

You now know if you have a moisture problem, but how do you fix it? A moisture or vapor barrier can get the job done. While no moisture barrier is 100% impermeable, they will generally stop most of the moisture that passes from outside to inside when temperatures vary significantly. The type of material used will vary depending on the level of moisture problem you have. Aluminum, plastic, asphalt and metallized film all work well for this.

Beyond a moisture barrier, you can take other actions to stop condensation in your basement. If you keep the air moving, it will reduce a lot of the moisture build up. Moving air with fans in your basement keeps moisture from settling and creating problems. You can also improve your insulation so that temperature is better regulated inside your home.

Moisture barriers are a great tool for stopping damage in your basement. This is only for condensation, however. Make sure, if you have a more severe water problem in your basement that you look into the installation of a French drain, sump pump, or drain tile system.

What is a Whole House Fan?

Wednesday, April 6th, 2011

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Cooling your home is a big deal. Especially if the temperature in your home is generally very high in the summer, the cost of air conditioning is tremendous. A central air conditioner can cost between $2,000 and $4,000 to run for an average 2,800 square foot home over the course of six months. That’s a lot of electricity just to stay cool.

That’s why a whole house fan is a great option for those that want to forego the use of direct air conditioning for at least part of the year.

What It Does

A whole house fan is different from a standard air conditioner because it doesn’t use a heat exchanger to remove heat from air before it enters your home. That heat exchanger is the culprit for a large percentage of an air conditioner’s energy consumption. A whole house fan can be used when the temperature outside is lower than inside, a common occurrence on moderate days in the summer.

The whole house fan draws air and then cycles it through your air vents without cooling it. The act of moving air through your home, however, is often enough to cool the space to a comfortable level. The size of your whole house fan depends on quite a few things. First, how big is your home? Large homes that require even cooling need a larger fan to draw in air. However, small homes can often get away with models that use as little as 120 Watts of electricity. That’s less than your computer uses.

Choosing a Fan for Your Home

Keep in mind that a whole house fan only works when the temperature outside is lower than inside. If the air outside is excessively humid or if it is very warm in the hottest months of summer, you will still need an air conditioning unit. But, even if you run your air conditioner for two months out of the year, you’ll save a tremendous amount of money in the other four months by operating a whole house fan.

Whole house fans should be used in conjunction with an effective air purification system to ensure all outdoor contaminants are effectively removed before they are cycled through your house. They also require the same level of maintenance and cleaning as a normal AC system. However, with the right care, they work wonders to cut down on your energy bill.

Allergens: Regular Duct Cleaning Will Reduce Them

Monday, April 4th, 2011

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One of the biggest problems many families face with indoor air quality is the ever persistent presence of allergens. Especially if you have pets or plants, allergens will be in your home from the day you move in. But, that doesn’t mean there aren’t many ways to reduce them – especially in the case of duct work.

Allergens in Your Duct Work

How do so many allergens get into your ductwork? It starts with how the ductwork circulates air in your home. Because air only flows one way and because the ducts are not being used continuously, the air circulated by your air conditioner or furnace leaves behind all sorts of unwanted residue.

In both cases, the air drawn into your comfort system is usually the same air from inside your home. That means it is full of things like dust, pollen, dander and more. Even if the air is drawn from outside, often the case with an air conditioner unit, there are plenty of allergens outside.

How do you stop all of these allergens from working their way into your home and then your lungs? It starts with regular cleaning. You can’t ever truly stop allergens from coming inside or circulating in your air ducts, but you can take big steps in removing many of the contaminants that linger in your ducts.

Annual cleaning of the ducts by a professional will remove excess build up in places you cannot normally reach. Between those cleaning visits, you should supplement the cleaning by dusting and vacuuming vents and the areas of your ducts you can reach.

Going Beyond Cleaning

Cleaning your ducts is a great way to reduce allergens in the house. That alone, along with quality ventilation will take care of the most common allergens. However, if people in your home suffer from asthma or more severe seasonal allergies you may want to upgrade your preventative measures with an air filtration and purification system.

An air filter alone, equipped with a HEPA filter, is capable of removing particles and allergens as small as 0.3 microns – far smaller than dander, pollen or dust. For those with more advanced allergies or too many outdoor contaminants, a purifier works wonders by removing excess gas, smoke, or mold from the air with ionization.

Whatever your concerns, it is possible to live comfortably in your home despite allergies. Stay on top of cleaning and get your air tested to see if filtration will help. From there, you can remove almost anything.

How to Improve Your Indoor Air Quality

Friday, April 1st, 2011

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When we think of air pollution we often think of outdoor “smog”, but the air in your home or office may also be polluted, even if it looks clean. Sources of indoor pollution include

  • Mold
  • Pollen
  • Cigarette smoke
  • Household cleaners
  • Household décor and furnishings (like rugs and paint)
  • Household pesticides (like rodent or ant-killers, or plant sprays)
  • Radon
  • Carbon monoxide
  • Building materials (like asbestos and lead)

Indoor air quality is of particular concern in newer, better-insulated homes, or in older homes that have been recently weatherized. The “tightness” of modern houses means that any pollutants that get into the home stay there – and perhaps even increase in concentration over time if the source of the pollution is inside the house.

Indoor air quality problems can cause discomfort and even serious disease, especially in children. The good news, though, is that there are many effective ways to improve indoor air quality.

There are three basic strategies for improving indoor air quality:

  • Air purification. Air cleaners range from small tabletop models to full-house models that are part of the central heating and cooling system. Small air purifiers are typically not very useful, but central air filters can be very effective at removing airborne contaminants. If your heating and cooling system does not include central air filtration, you should consider an upgrade to a new system.

    It is important to note that air purification will not remove gases like carbon monoxide or radon from your home. Gas pollution must be remedied by professionals.

  • Ventilation. Many forced-air heating and cooling systems do not bring outdoor air into the home. Kitchen and bathroom exhaust fans and attic ventilation fans (when weather permits) can be very important in promoting the circulation of air. Also, opening windows is very important, especially when doing short-term activities such as painting that increase the number of pollutants in the air.

    You should also consider upgrading to one of the newer central heating and cooling systems that bring outdoor air into the home.

  • Source control. This is the most important indoor air quality strategy, and in many cases, the simplest one. Source control is definitely the most cost-effective strategy for improving indoor air quality, because purification and ventilation both require a constant use of energy.

    Switch to all-natural household cleaners, buy household furnishings made of natural fibers (instead of synthetic fibers that can “off-gas” volatile organic compounds). When painting, use VOC-free paint. Quit smoking, if you haven’t already.

    In some cases, source control must be done by a certified contractor. Asbestos should be sealed or enclosed (asbestos is not a hazard unless it is disturbed, at which point it can release a dangerous dust). Radon gas should be mitigated whenever possible by sealing cracks in the foundation where the gas enters, or by filtering the water supply if water is the source. Gas stoves can be adjusted to decrease the amount of emissions. Lead paint can be scraped off or covered with modern, lead-free paint (this is not a DIY job and requires EPA training).

    And, don’t forget to install a carbon monoxide detector in your home, ideally next to the sleeping areas.

Geothermal Heat Pump Installation in Bucks County PA

Tuesday, May 25th, 2010

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Last week, Carney Plumbing, Heating and Cooling completed a geothermal heat pump installation for another Bucks County customer who was concerned with escalating energy costs.  The homeowners, who just moved into the home last year decided to replace their practically brand new propane furnaces and central air conditioning systems with two energy saving geothermal heat pump systems.  The installation of the geothermal systems took place over a four day period and included a zoning system on one of the geothermal systems to provide independent control of temperature in designated rooms and a desuperheater on the other system to drastically reduce the cost to provide hot water for the home – in fact, hot water is provided absolutely free when the geothermal systems are operating in air conditioning mode!

In addition to the geothermal heat pump systems, Consumer Reports’ top rated whole house air purification systems were installed with each system in order to provide ultra clean air to alleviate dust build up and remove allergens from the home.

Because of the extremely high levels of energy efficiency provided by these geothermal heat pumps, this homeowner was eligible for thousands of dollars in utility based rebates as well as a 30% Federal Tax Credit to help pay for the installation.

Geothermal heat pump systems provide optimal comfort and drastically reduce energy consumption.

Geothermal heat pump systems provide optimal comfort and drastically reduce energy consumption.

These homeowners will see reductions in their heating, air conditioning and water heating costs up to 70%! These savings, combined with the utility rebates and tax credit combine to make this investment one that will produce high, guaranteed returns for many years to come in addition to the premium comfort provided by geothermal heat pump systems.

If you live in Bucks or Montgomery County, PA and would like to explore the possibility of installing a geothermal heat pump system in your home, call Carney Plumbing, Heating & Cooling today for a free consultation.

Allergy Season Hits Pennsylvania

Thursday, April 22nd, 2010

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In Pennsylvania, spring has arrived – unfortunately so has allergy season.  Most allergy symptoms in Bucks and Montgomery County are caused by pollen or mold spores, but other causes also play a part. In fact, up to 72 trillion allergens find their way into your home every day.

During the months of April and May, Carney Plumbing, Heating & Cooling technicians perform air conditioning maintenance for thousands of central air conditioning systems throughout the Lansdale, Doylestown, Ambler, Perkasie, North Wales and Chalfont area.  A common theme among homeowners this year has been a heightened sense of awareness of indoor air quality issues that affect health and comfort.  Many homeowners are electing to install whole house solutions that provide hospital quality air cleanliness 24/7.

Trane CleanEffects removes up to 99.98 percent and particles and allergens from the filtered air. Installing Trane CleanEffects can be an important part of your overall allergy and asthma management plan.

Whole house air filtration can nearly eliminate allergens in the home.

Whole house air filtration can nearly eliminate allergens inside the home.

For more on solutions to ailments caused by polluted indoor air, see our Indoor Air Quality page.