By minisplitwarehouse | Link
March 3, 2013 //
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Fujitsu Mini Split System – Caulking.

Caulk is a flexible material used to seal air leaks through cracks, gaps, or joints less than 1-quarter-inch wide between stationary building components and materials. For components that move — doors and operable windows, for example — weatherstripping is the appropriate material.
 
Before caulking air leaks in an existing home, you will need to detect the leaks and assess your ventilation needs to ensure adequate indoor air quality. In addition to sealing air leaks, caulking can also prevent water damage inside and outside of the home when applied around faucets, ceiling fixtures, water pipes, drains, bathtubs, and other plumbing fixtures.

Best Mini Split System – SELECTING CAULK.

Most caulking compounds come in disposable cartridges that fit in half-barrel caulking guns (if possible, purchase one with an automatic release). Some pressurized cartridges do not require caulking guns.
 
When deciding how much caulking to purchase, consider that you'll probably need a half-cartridge per window or door and four cartridges for the foundation sill of an average home. Caulking compounds can also be found in aerosol cans, squeeze tubes, and ropes for small jobs or special applications. Caulking compounds vary in strength, properties, and prices. Water-based caulk can be cleaned with water, while solvent-based compounds require a solvent for cleanup. 

Fujitsu Mini Split – APPLYING CAULK.

Although not a high-tech operation, caulking can be tricky. Read and follow the instructions on the compound cartridge, and remember these tips:
 
For good adhesion, clean all areas to be caulked. Remove any old caulk and paint, using a putty knife, large screwdriver, stiff brush, or special solvent. Make sure the area is dry so you don't seal in moisture.
Apply caulk to all joints in a window frame and the joint between the frame and the wall. Hold the gun at a consistent angle. Forty-five degrees is best for getting deep into the crack. You know you've got the right angle when the caulk is immediately forced into the crack as it comes out of the tube.

Mitsubishi Mini Split Systems – The Best time to Apply Caulk.

Caulk in one straight continuous stream, if possible. Avoid stops and starts. Send caulk to the bottom of an opening to avoid bubbles. Make sure the caulk sticks to both sides of a crack or seam. Release the trigger before pulling the gun away to avoid applying too much caulking compound. A caulking gun with an automatic release makes this much easier. If caulk oozes out of a crack, use a putty knife to push it back in. Don't skimp. If the caulk shrinks, reapply it to form a smooth bead that will seal the crack completely. The best time to apply caulk is during dry weather when the outdoor temperature is above 45°F (7.2°C). Low humidity is important during application to prevent cracks from swelling with moisture. Warm temperatures are also necessary so the caulk will set properly and adhere to the surfaces.
 
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By minisplitwarehouse | Link
March 2, 2013 //
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Ramsond Mini Split Reviews – Infiltration, Natural Ventilation, and Mechanical Ventilation.

Outdoor air enters and leaves a house by: infiltration, natural ventilation, and mechanical ventilation. In a process known as infiltration, outdoor air flows into the house through openings, joints, and cracks in walls, floors, and ceilings, and around windows and doors (air may also move out of the house in this manner — this is called exfiltration). In natural ventilation, air moves through opened windows and doors.
 
Air movement associated with infiltration and natural ventilation is caused by air temperature differences between indoors and outdoors and by wind. Finally, there are a number of mechanical ventilation devices, from exhaust (vented outdoors) fans that intermittently remove air from a single room, such as bathrooms and the kitchen, to air handling systems that use fans and duct work to continuously remove indoor air and distribute filtered and conditioned outdoor air to strategic points throughout the house. The rate at which outdoor air replaces indoor air is described as the air exchange rate. When there is little infiltration, natural ventilation, or mechanical ventilation, the air exchange rate is low and pollutant levels can increase.

Ramsond Mini Split – Constructed to Minimize the Amount of Outdoor Air .

Unless they are built with means of mechanical ventilation, homes that are designed and constructed to minimize the amount of outdoor air that can "leak" into and out of the home may have higher pollutant levels than other homes. However, because some weather conditions can drastically reduce the amount of outdoor air that enters a home, pollutants can build up even in homes that are normally considered "leaky."

Ramsond Mini Split Heat Pump -Increase the Outdoor Air Ventilation Rate.

Most home heating and cooling systems, including forced air heating systems, do not mechanically bring fresh air into the house. Opening windows and doors, operating window or attic fans, when the weather permits, or running a window air-conditioner with the vent control open increases the ventilation rate. Local bathroom or kitchen fans that exhaust outdoors remove contaminants, including moisture, directly from the room where the fan is located and also increase the outdoor air ventilation rate.

 Ramsond Corporation -Control Energy Loss.

Ideally, new homes will be built to minimize leakage to control energy loss, improve comfort, and minimize the transport of moisture and pollutants through the building shell. These homes should then also have mechanical ventilation to remove pollutants generated in the home and provide outdoor air in a controlled manner. Whether a mechanical ventilation system makes sense in your existing homes depends on the house, your existing heating, ventilation, and air-conditioning (HVAC) system, and the changes you have planned. You should discuss this with your HVAC contractor. A local Weatherization office, or building performance contractor, might also be able to help you with this decision or point you to local experts.
 

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By minisplitwarehouse | Link
March 2, 2013 //
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Mitsubishi Air Conditioning Prices.  Indoor Pollution Sources. 

In the last several years, a growing body of scientific evidence has indicated that the pollutant levels within homes can sometimes be higher than in outdoor air, even in large, industrialized cities. Other research indicates that people spend approximately 90 percent of their time indoors. The potential health effects from indoor air pollution vary greatly and range from allergies and asthma, to cancer and even death.
 
Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems in homes. Inadequate ventilation can increase indoor pollutant levels by not bringing in enough outdoor air to dilute emissions from indoor sources and by not carrying indoor air pollutants out of the home. High temperature and humidity levels can also increase concentrations of some pollutants.

Mitsubishi Ductless Air Conditioning. Potential Sources of Indoor Air Pollution in Any Home.

There are many potential sources of indoor air pollution in any home. These include combustion sources such as oil, gas, kerosene, coal, wood, and tobacco products; building materials and furnishings such as insulation, carpet, and cabinetry or furniture made of certain pressed wood products; products for household cleaning and maintenance, personal care, or hobbies; central heating and cooling systems and humidification devices; and outdoor sources such as radon, pesticides, and outdoor air pollution. The importance of any source depends on how much of a given pollutant it emits and how hazardous those emissions are, as well as the sensitivity of the population.

Mitsubishi Mini Split Air Conditioning.Effective Ventilation.

One component of maintaining good indoor air quality is the elimination, reduction, or management of the pollutant sources. Another important component is effective ventilation. If too little outdoor air enters a home, pollutants can accumulate to levels that can pose health and comfort problems. In the past, homes had a significant amount of "natural" ventilation from leaks in the building. However, because some weather conditions can drastically reduce the amount of outdoor air that enters a home, pollutants can build up even in homes that are normally considered "leaky." 
 
Moreover, uncontrolled leaks can introduce moisture and humidity, pollens, and dust inside framing systems and interior spaces. This can lead to future air quality and durability problems. Beyond indoor air quality problems, leaky homes can be very expensive to heat and cool.

Ductless Air Conditioning Cost. Mechanical Ventilation.

Building leaky homes isn't the answer. Tight energy-efficient homes save energy and money. And with proper mechanical ventilation, they can have better indoor air quality than a leaky home. The reason is control. In a leaky home, outdoor air enters the house — through cracks, unsealed joints, and penetrations, for example — intermittently, depending largely on the weather. Some times there will be too much leakage, resulting in a drafty, uncomfortable house. Other times there won't be enough, resulting in a stuffy house. Mechanical ventilation in a well-insulated, well-sealed house, however, can exhaust pollutants and bring in outdoor air in a planned way. This makes a house both comfortable and energy efficient.
 
While it may be difficult or prohibitively expensive to make some of the improvements described below with an existing home, building these features into an addition can be easy and inexpensive. You might even save money! And construction practices that promote good indoor air quality also help protect the house itself. For example, controlling moisture will reduce mildew odors, premature paint failure, rot, and structural damage.
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By minisplitwarehouse | Link
March 2, 2013 //
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Comfort Aire Mini Split Error Codes. Ventilation.

Good ventilation protects both your health and your home. Ventilation is especially important in bathrooms to remove unwanted moisture. This helps prevent the growth of mold and mildew, which can cause allergic reactions and aggravate lung diseases such as asthma. During renovation, be sure to check that your bathroom fan is functioning properly. This means not only that the motor makes noise or that the fan is running; it needs to be exhausting a sufficient amount of air*. And the air should be exhausted directly to the outside, and not just into an attic or some other space in the house.
 
If you do not have a bathroom exhaust fan or if your current fan is not working, you should install one.  In cold climates, bathroom exhaust fans can be used as part of a strategy to provide ventilation for the whole house. 

Comfort Aire Mini Split Reviews. Sufficient amounts of Air and Air-sealing Opportunities.

It should be obvious that all efforts should be made to avoid problems with water in the bathroom. Leaks should be fixed. Condensation problems should be addressed. Wet walls should be constructed to effectively keep water from penetrating cavities in the walls and floor.
 
Despite good ventilation, moisture-laden air from the bathroom can still make it's way into wall and ceiling cavities. A bathroom remodeling project may present opportunity to improve air-sealing. Electrical, plumbing, and ventilation penetrations should be sealed where they are accessible or in any walls that are opened. Depending on how they were constructed, soffits can be troublesome to air-seal, but if you are replacing bath fixtures or cabinets, you may be able to access space that would otherwise be difficult to reach.

Comfort Aire Mini Split. Flooring.

Flooring must not only have a good degree of protection from harm by water, but should also prevent water which does get on the floor from penetrating to the subfloor and space below.
 
Do not install carpet near water sources or areas where there is a perpetual moisture problem such as around sinks, tubs, showers, and toilets. To reduce the potential for microbial growth in the joints of hard surfaces or porous flooring installed near water sources, be sure to seal the entire surface.

Comfort Aire Mini Split Parts. Windows.

Bathroom remodeling may present a good opportunity to replace old windows with new ENERGY STAR® windows. While costs do not always justify the change from purely an energy savings perspective, there may be other benefits of new windows. More efficient windows may be less prone to condensation and related mold growth. Painted window sashes and frames in homes built before 1978 may contain lead-based paint; this is a special concern because the friction of opening and closing windows can release lead dust into the home.
 

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By minisplitwarehouse | Link
March 2, 2013 //
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Split Systems HVAC. Radon.

Test your homes for radon. Radon is the second leading cause of lung cancer in the U.S. You can't see or smell radon, but it's not hard to measure the level of radon in your home. Testing is easy and should only take a little of your time. 
 
EPA recommends fixing your home if a test shows radon levels in your home exceed the action level of 4 picocuries per liter of air (pCi/L). If you are building an addition (or a new home!) there are radon-resistant new construction techniques you can use to help prevent high radon levels.

Comfort Star Mini Split. Lead.

Old lead-based paint is the most significant source of lead exposure in the U.S. today. The dust and chips from lead-based paint are dangerous when swallowed or inhaled; children and pregnant women are especially at risk. Harmful exposures to lead can occur when lead-based paint is improperly removed from surfaces by dry scraping, sanding, or open-flame burning, or by demolition. A home built before 1978 is likely to have surfaces painted with lead-based paint.

Comfort Air Mini Split.  Moisture Control.

Too much moisture in a home can lead to mold, mildew, and other biological growth. This in turn can lead to a variety of health effects ranging from more common allergic reactions, asthma attacks, and hypersensitivity pneumonitis, to death. Excess moisture can be in the form of high relative humidity, leaks in the roof, walls, or plumbing, air moving from the inside or the outside into the walls, or from the basement or crawlspace. Methods to control moisture include fixing any water leaks; providing ventilation in the home; air-sealing; properly using vapor barriers in wall construction, roofs; and preventing soil moisture from entering the home through basements and crawlspaces. Read more about moisture control.

Comfort Aire Ductless Mini Split.  Ventilation.

Good ventilation is important because it protects both your health and your home. Good ventilation protects you and your family from unpleasant odors, irritating pollutants, and potentially dangerous gases. Well-planned ventilation also helps prevent the growth of mold and mildew, which can cause allergic reactions and aggravate lung diseases such as asthma. Ventilation is important both during renovation and also as long as you occupy the home. Remodeling may present an opportunity to ensure your home has adequate ventilation. 
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By minisplitwarehouse | Link
March 2, 2013 //
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Wall Mounted Air Conditioning Unit. In New Construction, adding insulation on the exterior of the basement walls will:

Minimize thermal bridging and reduce heat loss through the foundation. Protect the damp-proof coating from damage during backfilling. Provide some protection against moisture intrusion. Protect the foundation from the effects of the freeze-thaw cycle in extreme climates. Reduce the potential for condensation on surfaces in the basement. Conserve room area, relative to installing insulation on the interior. In an existing home, adding insulation to the exterior of the basement walls is impractical. Interior basement wall insulation has the following advantages:
 
It is much less expensive to install than exterior insulation for existing buildings. Almost any insulation type can be used. It eliminates the threat of insect infestation. It isolates the living space from the cooler earth more effectively than when exterior insulation methods. Here are a few things to consider when installing interior basement wall insulation.

Cassette Air Conditioning. Many insulation types require a fire-rated covering because they release toxic gases when ignited.

Interior insulation reduces usable interior space by a few inches. It doesn't protect the damp-proof coating like exterior insulation does. If perimeter drainage is poor, the insulation may become saturated by moisture weeping through foundation walls. Superior air-sealing details and vapor diffusion retarders are important for adequate performance. To determine appropriate R-values for basement walls in your area, use these R-value recommendations. Then choose the type of insulation:
 
Blanket (batt and roll) insulation. Insulating concrete blocks (new construction) Foam board insulation. Insulating concrete forms (new construction). Loose-fill insulation (good choice for finished basements). Sprayed foam insulation (good choice for finished basements). Moisture control is particularly important for basements, because they are notorious for problems with water intrusion, humidity, and mold.

Sanyo Air Conditioning Units. CRAWLSPACE INSULATION.

How you insulate a crawlspace depends on whether it's ventilated or unventilated. Most building codes require vents to aid in removing moisture from the crawlspace. However, many building professionals now recognize that building an unventilated crawlspace (or closing vents after the crawlspace dries out following construction) is the best option in homes using proper moisture control and exterior drainage techniques.
 
If you have or will have an unventilated crawlspace, the best approach is to seal and insulate the foundation walls rather than the floor between the crawlspace and the house. This strategy has the advantage of keeping piping and ductwork within the conditioned volume of the house so these building components don't require insulation for energy efficiency or protection against freezing. The downside of this strategy is that rodents, pests, or water can damage the insulation and the crawlspace must be built airtight and the air barrier maintained. It’s best to locate the access door to the crawlspace inside the home through the subfloor unless you build and maintain an airtight, insulated access door in the perimeter wall.

Air Water Heat Pump Price. SLAB-ON-GRADE INSULATION.

Insulating a slab in an existing home can be expensive and disruptive, but If the slab in your home is cold it is possible to dig around the perimeter of the house and install insulation, usually foam board. In most parts of the United States, insulating the exterior edge of a slab can reduce heating bills by 10% to 20%.
 
Installing slab insulation during the construction process is more straightforward. Slab insulation, typically foam board, is installed either directly against the exterior of the slab and footing before backfilling or under the slab and along the inside of the stem wall of the foundation. Construction details vary widely, so it’s best to consult a building professional in your area. Building America’s climate-specific publications also have useful construction details for different climate zones.
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By minisplitwarehouse | Link
March 1, 2013 //
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Mitsubishi Air Conditioner Heater. INADEQUATE MAINTENANCE.

If you allow filters and air conditioning coils to become dirty, the air conditioner will not work properly, and the compressor or fans are likely to fail prematurely.

Mitsubishi Cooling and Heating Prices. ELECTRIC CONTROL FAILURE.

The compressor and fan controls can wear out, especially when the air conditioner turns on and off frequently, as is common when a system is oversized. Because corrosion of wire and terminals is also a problem in many systems, electrical connections and contacts should be checked during a professional service call.

Mitsubishi Mini Split Heat Pumps. SENSOR PROBLEMS.

Room air conditioners feature a thermostat sensor, located behind the control panel, which measures the temperature of air coming into the evaporative coil. If the sensor is knocked out of position, the air conditioner could cycle constantly or behave erratically. The sensor should be near the coil but not touching it; adjust its position by carefully bending the wire that holds it in place.

Mitsubishi Mr. Slim Ductless Air Conditioner. DRAINAGE PROBLEMS.

When it's humid outside, check the condensate drain to make sure it isn't clogged and is draining properly. Room air conditioners may not drain properly if not mounted level.
 

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By minisplitwarehouse | Link
March 1, 2013 //
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Lg Mini Split Reviews.CONDENSATE DRAINS.

Occasionally pass a stiff wire through the unit's drain channels. Clogged drain channels prevent a unit from reducing humidity, and the resulting excess moisture may discolor walls or carpet. WINDOW SEALS FOR ROOM AIR CONDITIONERS. At the start of each cooling season, inspect the seal between the air conditioner and the window frame to ensure it makes contact with the unit's metal case. Moisture can damage this seal, allowing cool air to escape from your house.

Mini Split AC System. PREPARING FOR WINTER.

In the winter, either cover your room air conditioner or remove and store it. Covering the outdoor unit of a central air conditioner will protect the unit from winter weather and debris.

Lg Mini Split System. HIRING A PROFESSIONAL.

When your air conditioner needs more than regular maintenance, hire a professional service technician. A well-trained technician will find and fix problems in your air conditioning system.The technician should: Check for correct amount of refrigerant. Test for refrigerant leaks using a leak detector. Capture any refrigerant that must be evacuated from the system, instead of illegally releasing it to the atmosphere. 

Lg Ductless Mini Split. Seal Duct Leakage.

Check for and seal duct leakage in central systems. Measure airflow through the evaporator coil. Verify the correct electric control sequence and make sure that the heating system and cooling system cannot operate simultaneously. Inspect electric terminals, clean and tighten connections, and apply a non-conductive coating if necessary. Oil motors and check belts for tightness and wear. Check the accuracy of the thermostat.

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By minisplitwarehouse | Link
March 1, 2013 //
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Ductless AC Installation. Consider Climate, Home Design.

Consider factors such as your climate, home design, and budget when selecting insulation for your home. Use higher R-value insulation, such as spray foam, on exterior walls and in cathedral ceilings to get more insulation with less thickness. Install attic air barriers such as wind baffles along the entire attic eave to help ensure proper airflow from the soffit to the attic. Ventilation helps with moisture control and reducing summer cooling bills, but don't ventilate your attic if you have insulation on the underside of the roof. Ask a qualified contractor for recommendations.
 
Be careful how close you place insulation next to a recessed light fixture—unless it is insulation contact (IC) rated—to avoid a fire hazard. See the Lighting section for more information about recessed lights. Follow the manufacturer's installation instructions, and wear the proper protective gear when installing insulation.

Cleaning Air Conditioner. LONG-TERM SAVINGS TIPS.

One of the most cost-effective ways to make your home more comfortable year-round is to add insulation to your attic, including the attic trap or access door, which is relatively easy.
 
To find out if you have enough attic insulation, measure the thickness of the insulation. If it is less than R-30 (11 inches of fiberglass or rock wool or 8 inches of cellulose), you could probably benefit by adding more.
 
If your attic has enough insulation and proper air sealing, and your home still feels drafty and cold in the winter or too warm in the summer, chances are you need to add insulation to the exterior walls. This is more expensive and usually requires a contractor, but it may be worth the cost—especially if you live in a very cold climate. If you replace the exterior siding on your home, consider adding insulation at the same time.
 
You may also need to add insulation to your crawlspace or basement. Check with a professional contractor for recommendations.

How to Install Mini Split Air Conditioner? NEW CONSTRUCTION AND ADDITIONS.

 

In most climates, you will save money and energy when you build a new home or addition if you install a combination of cavity insulation and insulative sheathing. Reduce exterior wall leaks by taping the joints of exterior sheathing and caulking and sealing exterior walls. Cavity insulation can be installed at levels up to R-15 in a 2 inch x 4 inch wall and up to R-21 in a 2 inch x 6 inch wall. These help to reduce the energy that would otherwise be lost through the wood frame. The table below shows the recommended combinations. For more customized recommendations, see the ZIP Code Insulation Calculator.
 
Consider products that provide both insulation and structural support, such as structural insulated panels (SIPs), and masonry products like insulating concrete forms. You should consider attic or roof radiant barriers (in hot climates), reflective insulation, and foundation insulation for new home construction. Check with your contractor for more information about these options.

How to Install Central Air Conditioner Unit? There are four types of systems.

Exhaust ventilation systems work by depressurizing the building and are relatively simple and inexpensive to install.
 
Supply ventilation systems work by pressurizing the building, and are also relatively simple and inexpensive to install.
 
Balanced ventilation systems and  Energy recovery ventilation systems. If properly designed and installed, neither pressurize nor depressurize a house. Rather, they introduce and exhaust approximately equal quantities of fresh outside air and polluted inside air.
 
Provide controlled ventilation while minimizing energy loss. They reduce the costs of heating ventilated air in the winter by transferring heat from the warm inside air being exhausted to the fresh (but cold) supply air. In the summer, the inside air cools the warmer supply air to reduce ventilation cooling costs.
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By minisplitwarehouse | Link
February 28, 2013 //
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HVAC Line Sets. Liquid foam insulation.

Combined with a foaming agent — can be applied using small spray containers or in larger quantities as a pressure-sprayed (foamed-in-place) product. Both types expand and harden as the mixture cures. They also conform to the shape of the cavity, filling and sealing it thoroughly.

AC Line Sets. Slow-curing liquid foams are also available. 

 
These foams are designed to flow over obstructions before expanding and curing, and they are often used for empty wall cavities in existing buildings. There are also liquid foam materials that can be poured from a container.

Mini Split Line Set. Experienced Installers.

Installation of most types of liquid foam insulation requires special equipment and certification and should be done by experienced installers. Following installation, an approved thermal barrier equal in fire resistance to half-inch gypsum board must cover all foam materials. Also, some building codes don't recognize sprayed foam insulation as a vapor barrier, so installation might require an additional vapor retarder.

50' Line Set. COSTS.

Liquid foam insulation products and installation usually cost more than traditional batt insulation. However, liquid foam insulation has higher R-values and forms an air barrier, which can eliminate some of the other costs and tasks associated with weatherizing a home, such as caulking, applying housewrap and vapor barrier, and taping joints. When building a new home, this type of insulation can also help reduce construction time and the number of specialized contractors, which saves money.
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