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Everything you wanted to know about heating and air conditioning but did not know whom to ask.
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We have compiled some of the most frequently asked questions (FAQs) to assist you in your heating and air conditioning decisions. If you do not find the answer to your question or would like to follow up with us in person please contact us by email or phone (973-423-5855).
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Installing and Maintaining the System :
Proper installation and maintenance of your space heating equipment can optimize its energy efficiency. This would depend on many factors which include fuel type, climate, local building code requirements, and safety issues. Therefore, it's best to get a qualified plumbing and heating contractor install it. Be sure to do the following when selecting a contractor:
- Request cost estimates in writing
- Ask for references
- Check the company's profile with your local Better Business Bureau
- See if the company can obtain a local permit if necessary and understands local building codes, etc.
Periodic maintenance of your system can significantly extend the life of your equipment and minimize loss of efficiency. Consult your installer and read your owner's manual for specific maintenance recommendations.
Improving Energy Efficiency : After your combination system is properly installed and maintained, try some additional energy-saving strategies for your space heating and cooling to help lower your utility bills.
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Q: How do I select the right heating/cooling system? A: First, make sure the unit is properly sized. Jim Alfano Co. will assist with choosing the right products for all your heating and cooling needs. ................................................................................................................................. | |
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Q: Why should I replace my existing heating or air conditioning system? A: You may wish to consider replacing your air conditioning or heating system if it is old, inefficient or in need of repair. Systems not properly maintained, and wear and tear on a system, can reduce the actual or realized efficiency of the system. Jim Alfano CO. has state of the art high efficiency systems that will help reduce energy cost by ???%. Today's systems are as much as 60% more efficient than those systems manufactured as little as ten years ago. If you are concerned about utility bills or are faced with an expensive repair, you may want to consider replacing your system rather than enduring another costly season or paying to replace an expensive component. | |
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Q: What is involved in replacing an old system? A: Aside from the placement of the new equipment, we will inspect several items and make a recommendation on whether or not these items need to be supplied or replaced. The items include: ductwork, insulation, refrigerant piping, electrical service, wiring, thermostat, condensate piping, flue piping, flue terminations, chimney liner, slabs, filter, driers, registers, grills, drain pans and evaporator coil. | |
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Q: What are some preventative maintenance things I should be aware of? A: With the proper attention, heating and cooling systems can keep you comfortable year-round. Heat pumps and oil-fired furnaces and boilers need a yearly professional tune-up. Gas-fired equipment, on the other hand, burns cleaner and can be serviced every other year. A close inspection will uncover leaks, soot, rust, rot, corroded electrical contacts and frayed wires. In furnace (forced-air) and boiler (hot-water) systems, the inspection should also cover the chimney, ductwork or pipes, dampers or valves, blower or pump, registers or radiators, the fuel line and the gas meter or oil tank-as well as every part of the furnace or boiler itself. Next, the system should be run through a full heating cycle to ensure that it has plenty of combustion air and chimney draft. Finally, cleaning the burner and heat exchanger to remove soot and other gunk will prevent such buildup from impeding smooth operation. For the burner, efficiency hinges on adjusting the flame to the right size and color, adjusting the flow of gas or changing the fuel filter in an oil-fired system. A check of the heat pump should include an inspection of the compressor, fan, indoor and outdoor coils and refrigerant lines. Indoor and outdoor coils should be cleaned, and the refrigerant pressure should be checked.
Blower Tuning up the distribution side of a forced-air system starts with the blower. The axle should be lubricated; blades cleaned and lower motor checked to insure the unit isn't being overloaded. The fan belt should be adjusted so it deflects no more than an inch when pressed. Every accessible joint in the ductwork should be sealed with mastic or UL-approved duct tapes. Any ducts that run outside the heated space should be insulated. On a hot-water system, the expansion tank should be drained, the circulating pump cleaned and lubricated and air bled out of the radiators.
Thermostat While thermostats rarely fail outright, they can degrade over time as mechanical parts stick or lose their calibration. Older units will send faulty signals if they've been knocked out of level or have dirty switches. To recalibrate an older unit, use a wrench to adjust the nut on the back of the mercury switch until it turns the system on and, using a room thermometer, set it to the correct temperature. Modern electronic thermostats, sealed at the factory to keep out dust and grime, rarely need adjusting. However, whether your thermostat is old or young, the hole where the thermostat wire comes through the wall needs to be caulked or a draft could trick it into thinking the room is warmer or colder than it really is.
Humidifier A neglected in-duct humidifier can breed mildew and bacteria, not to mention add too much moisture to a house. A common mistake with humidifiers is leaving them on after the heating season ends. Don't forget to pull the plug, shut the water valve and drain the unit. A unit with a water reservoir should be drained and cleaned with white vinegar, a mix of one part chlorine bleach to eight parts water or muriatic acid. Mist-type humidifiers also require regular cleaning to remove mineral deposits.
Filters Most houses with forced-air furnaces have a standard furnace filter made from loosely woven spun-glass fibers designed to keep it and its ductwork clean. Unfortunately, they don't improve indoor air quality. That takes a media filter, which sits in between the main return duct and the blower cabinet. Made of a deeply pleated, paper-like material, media filters are at least seven times better than a standard filter at removing dust and other particles. An upgrade to a pleated media filter will cleanse the air of everything from insecticide dust to flu viruses. Compressed, media filters are usually no wider than six inches, but the pleated material can cover up to 75 square feet when stretched out. This increased area of filtration accounts for the filter's long life, which can exceed two years. The only drawback to a media filter is its tight weave, which can restrict a furnace's ability to blow air through the house. To insure a steady, strong airflow through the house, choose a filter that matches your blower's capacity.
Duct Cleaning Inside the walls and floors of 80 percent of American homes run a maze of heating and air conditioning ducts that connect each room to the furnace. As the supply ducts blow air into the rooms, return ducts inhale airborne dust and suck it back into the blower. Add moisture to this mixture and you've got a breeding ground for allergy-inducing molds, mites and bacteria. Many filters commonly used today can't keep dust and debris from streaming into the air and over time sizable accumulations can form-think dust bunnies, but bigger. To find out if your ducts need cleaning, pull off some supply and return registers and take a look. If a new furnace is being installed, you should probably invest in a duct cleaning at the same time, because chances are the new blower will be more powerful than the old one and will stir up a lot of dust. Professional duct cleaners tout such benefits as cleaner indoor air, longer equipment life and lower energy costs. Clean HVAC systems can also perform more efficiently, which may decrease energy costs, and last longer, reducing the need for costly replacement or repairs. Cleaning has little effect on air quality, primarily because most indoor dust drifts in from the outdoors. But it does get rid of the stuff that mold and bacteria grow on, and that means less of it gets airborne, a boon to allergy sufferers. | |
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