Heating and Air Conditioning System

Air Exchange Systems Minneapolis MN

Posted by on Mar 27, 2012 in Air Exchange Systems, Minnesota Furnace and AC Repair Service MN, Minnesota Heating and Air Conditioning Contractor | 0 comments

Healthier Homes Using Air to Air Exchange Systems Can your own home be making you sick? The overall performance and indoor air quality of any home is dependent upon its ability to function properly. Homes of today are uniquely designed with energy efficiency in mind. Hence, the structure becomes much tighter raising serious indoor air quality, comfort and structural concerns. Indoor Air Quality Ventilation and Moisture Control Newer construction methods can improve air tightness conflicting with the ability of your home to function properly. Air flow, ventilation, temperature control, air filtration, dust (mites) problems and more are very serious concerns for the health of your family. Question: Can your own home be making you sick? Answer: Yes. Indoor Air Quality. Any structure must have the ability to breathe by mechanical means and function as a complete system. Any building structure is composed of a wide variety of manmade, natural building materials and components that need to function in harmony during our adverse weather conditions throughout the year. Moisture problems can lead to significant health problems and indoor air quality concerns of its occupants. Structural dry rot or overall weakness can derive from the inability of the structure to prevent or move moisture away from the home. Major respiratory ailments can develop from these unhealthy conditions, especially in the elderly and young infants. Indoor Air Quality concerns include a lack of ventilation which can be a contributing factor from within our homes as a major contributor of Sick Building Syndrome (SBS).  PDF version Inadequate ventilation is very common in many homes which can lead to mold growth and other respiratory ailments causing Indoor Air Quality issues. There are more than 100,000 species of molds. Over 1,000 different molds are found in the United States. Some common molds found are species of Cladosporium, Aspergillus, Penicillium and Alternaria. These molds produce airborne toxins called Mycotoxins which can cause very serious breathing difficulties, memory and hearing loss, dizziness, flu like symptoms and possible bleeding of the lungs possibly related to our indoor air quality. Many other indoor air quality symptoms may include running nose, eye irritation, chronic cough, congestion, severe respiratory problems and aggravation of asthma. Common molds can be toxic and sometimes lethal for individuals with weakened immune systems. A 1996 Mayo Clinic study had linked chronic sinus infections afflicting over 37 million people to molds. Radon, The Invisible Intruder, effecting our indoor air quality can be lethal effecting an estimated 20,000 people per year. Ranked #2, and a known leading cause of Lung Cancer in the United States. There are many causes for alarm that can be related to our indoor air quality and this disease to include much tighter surroundings within our own indoor living environments. As we spend up to 90% of our time indoors, the air we breathe, as much as 200,000 liters per day, can be related to our indoor air quality and contains microbiological and solid airborne submicroscopic particulates that can be dangerous and very harmful to our immune system especially in young infants. Over 90% of these harmful particulates are less in size than .03 microns. One micron is 100 times less than a human hair follicle. Most filters generally capture less than 10% its required rate of filtration and are very restrictive to air flow, which can therefore increase energy costs and reduce heating and cooling performance. Penetration into structures from cracks, non-existent moisture barriers and weakened foundations may increase the risk of radon and affecting our indoor air quality. This poisonous gas is now the leading cause of lung cancer in the United States. Second-Hand smoke can also cause severe respiratory...

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Heat Pump Installation MN | Heat Pump Repair

Posted by on Mar 20, 2012 in Heat Pump Installation & Repair, Minnesota Furnace and AC Repair Service MN, Minnesota Heating and Air Conditioning Contractor | 0 comments

Minnesota Heat Pump Systems Repair & Installation Heat pumps efficiently heat your home in winter and cool your home in summer. During winter, an electric or gas furnace supplements your heat pump by providing the additional heat needed to keep you comfortable when outside temperatures are low. As your heating system ages, it can lose efficiency or stop working altogether. With the cost of home heating fuel constantly on the rise, there’s never been a better time to explore alternative means of controlling temperature in your home. Heat and Cool Your Home Efficiently Heat pumps have been now increasingly used as an efficient, convenient and cost effective alternative to heat and cool indoors from a single unit. In fact, the installation of a heat pump is a long term investment. It is therefore vital to undertake a thorough research, prior to its purchase. These are some important factors that should be taken into account while purchasing a heat pump. First, compare the efficiency ratings such as SEER and HSPF of different heat pumps now available in the market. The higher the SEER and HSPF ratings, the more efficient the functioning of your heat pump will be. The SEER (Seasonal Energy Efficiency Ratio) is used to rate its cooling efficiency while the HSPF (Heating Seasonal Performance Factor) serves as a way to measure the efficiency of heat pump’s compressor. A reliable heat pump will usually have a SEER rating ranging from 14 to 19. When it comes to HSPF, it will be mostly between 8 and 10. Another important factor that should be considered for the right selection of heat pump is to check whether it is environmental friendly. For best results, opt for a heat pump with ozone friendly refrigerant, R410a. Equally important is to review its unique features. It would be a good option to choose a heat pump with features like two stage compressors as well as motors, and scroll compressor that help for its quieter performance. Further, make sure that your chosen heat pump is covered by excellent warranty options. The EPA has mandated that manufacturers stop making R-22 equipment (that is most likely the refrigerant your current system uses).  This means that if you make a major repair to your existing system, you have made an investment in a piece of equipment that is no longer going to be manufactured after 2009. New systems are installed with R-410a, which is the new refrigerant being used by manufacturers.  This refrigerant is more environmentally friendly than R-22, its predecessor. Because these units provide both heating and cooling, it is even more important that you have the proper size. The wrong size unit will steal money from your pocket the whole year long. That can add up in a hurry! A heat pump’s heating and cooling capacity should match your home’s heating and cooling demands to work most efficiently. An undersized system won’t adequately cool your home, while an oversized one won’t dehumidify properly and can make the house feel drafty in the winter. Ask a licensed Minnesota heating and air conditioning contractor for a heating and cooling load system analysis. With any major repair on your furnace and air conditioner that is older than eight years, you investing money into an old system, there are no guarantees that something else won’t fail in the near...

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HVAC Heating & Cooling Systems MN Minneapolis MN

Posted by on Mar 15, 2012 in Heating and Air Conditioning System, Minnesota Furnace and AC Repair Service MN, Minnesota Heating and Air Conditioning Contractor | 0 comments

MN Heating And Cooling Systems Minneapolis MN Indoor air quality is important. We breathe about 5,000 gallons of air daily. Indoor air can be more polluted than outdoor air, even in large industrialized cities. We spend 90% of our time indoors. Especially at risk are infants and the elderly, who spend almost all of their time indoors. Indoor pollution can be as serious as carbon monoxide poisoning, which can be life threatening. Excessive moisture inside the home can also contribute to indoor air contamination. Keep Your Home Healthy Reduce your exposure to indoor pollutants It’s best to focus on changes you can take to reduce your exposure to indoor pollutants. Heat Recovery Ventilation Ventilation can be provided by natural airflow through doors and windows. A heat exchanger (heat or energy recovery ventilator) is an efficient and economical way to have air exchanged and yet reduce heating and cooling costs. Heat exchangers require maintenance to be efficient and effective. Optimum Relative Humidity Moisture levels need to be monitored. Too much moisture can cause damage to a home and affect health. Molds and viruses multiply with too much moisture in the home. At low relative humidity, incidents of respiratory infections and allergic rhinitis increase. Other concerns of low humidity are static electricity, damage to furniture and musical instruments, and dry skin. Controlling Excess Moisture Use exhaust fans when showering Repair plumbing leaks Vent clothes dryer Dry and clean flooded materials People produce 3 pints of water per day just breathing. Other sources of moisture include cooking, cleaning and taking showers. About one pint of moisture comes from a 10-minute shower. Moisture coming from basement walls and floors can be up to 100 pints per day with wet soil. Removing Moisture Ventilate in cold weather Dehumidify or air condition in warm weather Relative humidity is the amount of moisture in the air relative to the amount it can hold. Cold air can hold very little moisture, so even at 90% RH there is little moisture in the air. As the air is warmed, the amount of moisture it can hold increases and the RH decreases. Air at 0°F and 90% RH will have a RH of only 5% when warmed to 70°F. Since outside air is very dry during the winter, ventilating is the best way to remove moisture. Summer ventilation may increase the humidity in a basement. Cooling air increases its relative humidity. Air at 75°F and 65% RH will have a relative humidity of about 90% if cooled to 65°F in a cool basement. A dehumidifier or air conditioner is recommended to reduce basement humidity during the summer. Reduce Condensation Winter — 30-40% humidity Summer –less than 65-70% humidity Even with energy efficient windows, relative humidity in the home or in one room can cause condensation on windows. Prolonged moisture from condensation can damage the window by rotting wood around the window and lead to mold growth. Reduce condensation by keeping the indoor humidity level below 40% in winter. You can reduce window condensation by adding an additional layer, such as plastic, which warms the window surface. This is similar to dressing in layers. Dehumidifiers generally only lower humidity to about 50% so dehumidifiers are not adequate for limiting condensation during the winter. Hygrometer Hygrometers measure relative humidity but are often not accurate. Some can be as much as 20% off. Electronic digital units tend to be more accurate. To calibrate, place the hygrometer in a sealed plastic bag with a mixture of 1/4 cup table salt and 1/2 cup water for 12 hours. The gauge should read 75% humidity....

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MN Heat Pump Installation & Repair Minneapolis MN

Posted by on Mar 13, 2012 in Furnace or AC System, Heat Pump Installation & Repair, Minnesota Heating and Air Conditioning Contractor | 0 comments

Heat Pump Installation MN | Heat Pump Repair Heating your home accounts for the biggest portion of a typical utility bill. In fact, heating and cooling costs the average homeowner more than $1,000 a year. If you want to make a big dent in rising heating costs this winter, bring them back to earth with a high efficiency heat pump. Cut Your Home Heating and Cooling Costs With A Heat Pump A heat pump is designed to move heat from one place to another, transferring heat inside during the winter and outside during the summer. You win two ways. By drastically cutting your heating AND your cooling costs. If you know how air conditioners work, you already know a little about how heat pumps work. A heat pump works like a normal central air conditioning system. The main difference is that instead of taking the colder months off, the unit must work all year long. When your thermostat senses a need for cooling, the fan in the furnace or air handler comes to life. This fan blows air over a coil containing refrigerant. The outdoor unit contains a pump which is called a compressor. This compressor pumps the refrigerant to the air handler where heat from the air is transferred to the refrigerant. Then the refrigerant is returned to the outdoor unit. Here another fan pulls air over another coil and the heat is transferred to the outdoor air. This process is repeated over and over until the home is cool. To provide heat to the home a few components are added to the basic air conditioner. A reversing valve is added to change the direction of refrigerant flow. In the heating mode, this makes the refrigerant temperature higher than the indoor temperature. Therefore, when the refrigerant flows to the indoor unit, heat is transferred to the homes’ air. There are both air conditioners and heat pumps that meet the ENERGY STAR guidelines for energy efficiency. The ENERGY STAR web site explains that “Though these products can be more expensive to purchase up front, the cost difference will be paid back over time through lower energy bills.” Purchasing efficient appliances is the most effective way to control energy costs. Products with the ENERGY STAR® symbol use less energy, save you money and help protect the environment. Discover The Benefits Of A Heat Pump System Low heating costs Low cooling costs Dependability Comfort Low maintenance Easy operation Environmentally friendly and safe Heat and Cool Your Home Efficiently Heat pumps efficiently heat your home in winter and cool your home in summer. During winter, an electric or gas furnace supplements your heat pump by providing the additional heat needed to keep you comfortable when outside temperatures are low. If your furnace and air conditioner are 15 years or older, you can save even more with a heat pump system. A typical 1,500-square-foot, ranch-style home could have the following annual heating and cooling costs: 60% AFUE* gas furnace and 6 SEER air conditioner $1,307 80% AFUE* gas furnace and 13 SEER heat pump $455 Annual Heating & Cooling Savings $852 or 65% Actual costs depend on the number of people in your household, your lifestyle, the size of your home, the efficiency of your duct system, heating and cooling equipment and the insulation levels in your home. How heat pumps achieve energy savings and CO2 emissions reduction Heat pumps offer the most energy-efficient way to provide heating and cooling in many applications, as they can use renewable heat sources in our surroundings. Read about how Heat Pumps can save energy and reduce...

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Minnesota Heat Pump Installation & Repair MN

Posted by on Mar 8, 2012 in Furnace or AC System, Heat Pump Installation & Repair, Heating and Air Conditioning System, Minnesota Heating and Air Conditioning Contractor | 0 comments

Minnesota Heat Pump Systems Minneapolis MN A heat pump is an air conditioning system that both heats and cools. It uses electric energy to move the heat that already exists. During the winter, the heat pump extracts the heat present in cold winter air and pumps the heat into your home. (Even in the coldest weather there’s heat in the air.) In the summertime, it functions as a conventional air conditioner, pulling the heat out of your home and releasing it outside. A heat pump also filters and dehumidifies. When the heat pump circulates air, it also filters it. And since the heat pump is an air conditioner, it extracts excess moisture from the home, to help control humidity in hot summer months. With the cost of home heating fuel constantly on the rise, there’s never been a better time to explore alternative means of controlling temperature in your home. Heat Pump Sizing Sizing Decisions regarding the sizing of a heat-pump-based system require an accurate evaluation of heating requirements: overestimation, with an oversized heat pump, entails an increase in system costs and consequently a reduction in the economic benefits which derive from its use. It is wise, therefore, to have a qualified Minnesota Heating and Air Conditioning Contractor evaluate the appropriate dimensions. Maintenance A heat pump is not a household appliance. It’s a self-contained system that requires professional maintenance and repair. That’s why attempts at “do-it-yourself” repairs on an in-warranty unit may void the remainder of your warranty. Other than performing the simple maintenance recommended in this manual, you should not attempt to make any adjustments to your heat pump system. Your dealer will be able to take care of any questions or problems you may have.   Heat Pump A heat pump system should be inspected regularly by a properly trained HVAC technician. The inspection (preferably twice each year, but at least once a year) should include the following: Routine inspection of air filter(s). Replacement or cleaning as required. Inspection and cleaning of the blower wheel, housing, and motor as required. Inspection and, if required, cleaning of indoor and outdoor coils. Inspection of the indoor coil drain pan, plus the primary and secondary drain lines. If supplied, the auxiliary drain pan and line should be inspected at this time. Service should include cleaning, if required. How Heat Pumps and Air Conditioning Work It is important to know just how air conditioners and heat pumps operate, before making any final decisions. Howstuffworks.com provides a concise walkthrough for the basics of air conditioner and heat pump operation. By following these links, you’ll find that both products have inherent benefits, but the obvious difference is that you gain additional warming options by installing a heat...

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Air Exchanger Systems MN, Energy Recovery Ventilators and Indoor Air Quality

Posted by on Mar 6, 2012 in Air Exchange Systems, Heating and Air Conditioning System, Minnesota Heating and Air Conditioning Contractor | 0 comments

Indoor Air Quality and Radon Radon, The Invisible Intruder, effecting our indoor air quality can be lethal effecting an estimated 20,000 people per year. Ranked #2, and a known leading cause of Lung Cancer in the United States. There are many causes for alarm that can be related to our indoor air quality and this disease to include much tighter surroundings within our own indoor living environments. As we spend up to 90% of our time indoors, the air we breathe, as much as 200,000 liters per day, can be related to our indoor air quality and contains microbiological and solid airborne submicroscopic particulates that can be dangerous and very harmful to our immune system especially in young infants. How Radon Enter A House Over 90% of these harmful particulates are less in size than .03 microns. One micron is 100 times less than a human hair follicle. Most filters generally capture less than 10% its required rate of filtration and are very restrictive to air flow, which can therefore increase energy costs and reduce heating and cooling performance. Penetration into structures from cracks, non-existent moisture barriers and weakened foundations may increase the risk of radon and affecting our indoor air quality. This poisonous gas is now the leading cause of lung cancer in the United States. Second-Hand smoke can also cause severe respiratory problems and kills over 50,000 people every year. There are over 2,000 known chemicals and 200 toxins including carbon monoxide. Heat Recovery Ventilators and Energy Recovery Ventilators are complete whole house ventilation systems that incorporate a supply motor and an exhaust motor in one unit. The supply motor draws fresh air in from the outside and the exhaust motor pushes stale contaminated air out. The two air steams are separated by a heat/ energy recovery core which tempers the air making it the most comfortable solution for a healthy indoor environment. How Radon Enter A House Radon Reduction A heat recovery ventilator, or HRV, also called an air-to-air heat exchanger, can be installed to increase ventilation which will help reduce the radon levels in your home. An HRV will increase ventilation by introducing outdoor air while using the heated or cooled air being exhausted to warm or cool the incoming air. HRVs can be designed to ventilate all or part of your home, although they are more effective in reducing radon levels when used to ventilate only the basement. If properly balanced and maintained, they ensure a constant degree of ventilation throughout the year. HRVs also can improve air quality in homes that have other indoor pollutants. There could be significant increase in the heating and cooling costs with an HRV, but not as great as ventilation without heat recovery. The filter in an HRV requires periodic cleaning and should be changed twice a year. Replacement filters for an HRV are easily changed and are priced between $10 and $25. Ask your contractor where filters can be purchased. Also, the vent that brings fresh air in from the outside needs to be inspected for leaves and debris. The ventilator should be checked annually by a Minnesota heating, ventilating, and air conditioning professional to make sure the air flow remains properly balanced. HRVs used for radon control should run all the time. The MDH recommends that all Minnesota homeowners test their homes for radon. The results of a properly performed radon test will help homeowners determine for themselves if they need to take further action to protect their family from the health risks of radon in the home. Are Radon Levels Regulated? In Minnesota, radon levels in new...

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