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Even with regular heating system maintenance, you may eventually need a boiler repair service or even a boiler replacement in order to maintain indoor comfort in your home. There are certain signs to look out for that indicate it’s time to consider replacing you heating and cooling equipment, or improving the performance of your overall system. If the following indicators are present it may be time to call a professional contractor to help you with your appliance.

• Your heat pump or air conditioner is more than 10 years old. If it is consider replacing it with a unit that has earned the ENERGY STAR label. When installed correctly, these high efficiency units can save up to 20 percent on heating and cooling costs.
• Your furnace or boiler is more than 15 years old. Think about replacing it with an ENERGY STAR qualified furnace, which is 15% more efficient than a conventional furnace. However, if you have a boiler, consider replacing it with an ENERGY STAR qualified boiler that is 5% more efficient than a new, standard model.
• Your equipment requires frequent repairs and your energy bills are going up.
• Your cooling or heating equipment is becoming less efficient.
• Certain rooms in your home are too hot or too cold. This may be the cause of improper equipment operation, duct problems or inadequate insulation.
• Your home has humidity problems. Poor equipment operation, inadequate equipment, and leaky ductwork can cause the air to be too dry in the winter or too humid in the summer.
• Your home has too much dust. This may be happening because the leaky ducts can pull particles and air from attics, crawl spaces and basements and distribute them throughout your house. Sealing your ducts may help minimize the dust around your home.
• Your heating or cooling system is noisy. This may be that you have an undersized duct system or a problem with the indoor coil of your cooling equipment.

Buderus solar is one of the largest and most reputable manufacturers in the world. They have been manufacturing and designing solar water systems for over 25 years, and continue to invest in research and development to bring innovative, high quality, solar products to the market.

A Buderus solar thermal system for hot water consists of a solar collector, a pump station, and an indirect hot water storage tank. The solar collector, which is located on the roof, collects the sun’s energy and transfers the heat to the storage tank via the tanks internal heat exchanger. The storage tank in turn allows the hot water to be stored until it is used. The controller activates the system’s pump when there is enough solar energy to create hot water. Even on a cloudy day, light penetrates the cloud layer and heats up the solar collectors.

An existing Buderus wall hung or floor standing boiler can be combined into the solar system as a back-up for domestic hot water. The solar system can also complement the boiler for space heating by reducing the number of boiler starts, saving on costly fuel.

A typical Buderus residential solar hot water system using 2-4 collectors takes about 1-2 days to install depending on location and roof type. Larger commercial systems take longer because of the scale, equipment, and labor required. The typical life expectancy of a Buderus solar hot water system is 20-30 years. If the system is properly maintained, it can last over 30 years. Every 5 year, the heat transfer fluid should be checked and replaced. The pipe insulation and controller settings should also be checked as part of the annual system check-up.

A residential solar water heater will offset greenhouse gas emissions by about 1,600 pounds of carbon dioxide (CO2) per year. That’s equal to the amount of CO2 released by an average vehicle every 1,700 miles!

Keeping your home’s humidity levels consistent can significantly improve the health and comfort of your home. In general, when it comes to feeling comfortable in your home nothing affects a body’s perception of comfort more than the humidity level.

Industry experts report that keeping your home’s humidity between 30-60% can reduce the effects of many unwanted conditions. Too much humidity or too little humidity can not only lead to an unhealthy home, but also cause permanent damage to your home and belongings.

When There is Too Little Humidity the Following Occurs:

• You begin to experience chronic physical symptoms such as sore throats, dry/itchy skin, nose bleeds, or sinus irritation.
• Your home’s wood floors begin to shrink and crack, and the joints in the wood furniture become loose or fail.
• The wallpaper peels, while your paint or plaster starts to crack.
• Annoying and painful static shocks begin to occur.
• You still feel cold even though your thermostat is cranked up, and so is your energy bill.
• Your piano and other musical instruments begin to fall out of tune.

When There is Too Much Humidity…

• Your skin feels clammy, sweaty, or sticky.
• Musty smelling odors begin to invade your living space.
• Wood floors, trim, or wood furniture warps or rots; and paint peels.
• Condensation, frost, or ice form on the inside surface of your windows; and water pipes sweat.
• Damp spots, mold, and mildew form on ceilings or walls.
• Your allergies or asthma get worse due to the mold, mildew, and dust mites.
• Your house becomes a breeding ground for termites, cockroaches, and other pests.

What You Can Do:

• Use ventilation fans in kitchens and bathrooms. Make sure that your fans are venting directly outside.
• Cover dirt floor crawlspaces under your house with plastic. This acts as a vapor barrier.
• Also make sure your dryer is vented to the outside. Don’t dry wet clothes on drying racks in the house. If possible air dry them outdoors.
• Ensure air conditioning drip pans are clean, and drain lines are unobstructed.
• Fix any water leaks in pipes, toilets, showers, etc.

When your central heating and cooling system is in its best condition, it provides a great mix of efficiency and comfort. On the other hand, if it is left without proper maintenance, that efficiency crashes and so does your wallet.

Most maintenance for central heating and cooling systems should be left to the professionals, but some general upkeep can be performed by homeowners of any skill level. Here’s a list of suggested maintenance for central heating and cooling systems to ensure you keep the cost of comfort at its lowest.

Central Cooling

Air filters:

Air filters on central heating and cooling systems block dust, pollen, and other small particles from entering your home. Eventually, these air filters become clogged by these particles, causing a reduction in energy efficiency from 5 to 15 percent. Ignoring air filter maintenance is like throwing away the money you spent on a better unit. The U.S. Department of Energy recommends that filters be replaced every one to two months during the season. Some central air conditioner filters are reusable while others are disposable. Before you replace your air filter, check to see which kind you have.

Clogged drains:

Central air conditioners feature drains used to remove condensation and humidity. These can become clogged over time. Unclogging the drains is simple. Just push a wire through the drain channels to knock out the gunk.

Expert Level Central Cooling Maintenance

Other maintenance should only be done by professionals or homeowners with advanced knowledge. These include:

Cleaning coils:

The evaporator and condenser coils collect dirt overtime, limiting air flow and the amount of heat removed by the air conditioner. These should be cleaned, at most, every year.

Coil fins:

Fins on the evaporator and condenser bend over time, which blocks air flow. When this occurs, the fins should be straightened.

Blower adjustment:

The blower may wear down over time and need an adjustment to boost air flow.

Adjust refrigerant:

If your air conditioner has too much or too little refrigerant, an essential chemical component that creates cool air, your system will operate inefficiently.

Central Heating

Air filters:

A furnace relies on a filter to block out dust, mold, and other particles, which collects dirt over time, leading to falling energy efficiency. Your filter should be changed regularly, as much as once a month during seasons when it’s in constant use. A filter change takes just a few minutes.

Pilot light:

If you have natural gas, check whether the pilot light is on and that it’s blue. If you’re trying to heat your home but getting nothing except cold air blowing in, a pilot light that’s gone out is the likely problem. If the pilot light is yellow or orange, there may be a mechanical issue with the system.

Expert Level Central Heating Maintenance

Other maintenance should only be done by professionals or homeowners with advanced knowledge. These include:

Belt adjustment and lubrication:

Belts inside your central heating dry out and become worn over time, this reduces efficiency. These should be adjusted and lubricated, at the most, annually.

Interior cleaning:

Dirt will inevitably end up in your central heating, requiring a professional cleaning. Nearly all elements of the furnace must be wiped down and cleaned out. A dirty furnace can significantly reduce efficiency. Get a contractor to clean your furnace every few years.

Indoor air quality is becoming an increasing health concern, which is why quality air purifiers have never been more important for good health. Those tight seals that allow your home to feel comfortable and energy-efficient also make the indoor air in your home polluted. Pollutant levels of airborne particles, gases, chemicals, and volatile organic compounds are higher in the home than they are outside. Did you know that the air inside your home is five to ten times dirtier than the air outside, given that Americans spend about ninety percent of the time indoors?

The most common indoor air pollutant is air mold. It exists wherever moisture and oxygen are present. Inside your home, molds can likely be found in damp basements, closets, bathrooms, air conditioning systems, humidifiers, or any humid place. Poor indoor air quality affects people in different degrees. It all depends on an individual’s age and relative health, but there are different ways of protecting yourself and your loved ones against indoor air pollutants. Some ways to improve indoor air quality include:

• Attempt to control the source of the pollutant. If the pollutant is coming from indoor air mold, smoke, or some type of chemical, you can remove it by having a thorough cleansing of your home. Keeping in mind that some indoor air pollutants such as dust or pollen are not so easily eliminated.
• Improve the ventilation in your home. You can accomplish this by allowing fresh air into your home through windows. However, opening a window on a high pollen-count day or in a smoggy city will probably worsen the air situation in your home.
• Purchase an air purifier. There are numerous types of air purifiers on the market so be sure to buy one that is well suited for the dimension of your home.

Air purifiers are designed to clean and purify the air people breathe, by reducing odors and airborne pollutants that contribute to poor air quality, and filter common allergens such as pollen, mold and dust. Tips on choosing an air purifier include:

• Area Coverage – Make sure the square footage recommended for the air purifier is close to or slightly greater than the square footage of the room where you intend to use it.
• Air Changes Per Hour (ACH) – This number informs us how frequently the air purifier can exchange all the air in a given room in an hour.
• Filter Replacements – Filters have to be replaced on many types of air purifiers. Be sure to find out the cost of the filters and how often they must be changed.
• Noise Level – Some air purifiers are very quiet, while others can be quite loud. Make sure to have a trial demonstration of the unit before purchasing it.
• Energy Usage – Because air purifiers operate on energy and run continuously, the amount of energy they consume will be reflected on your energy bill.