The first air conditioners and refrigerators employed toxic or flammable gases, such as ammonia, methyl chloride, or propane, that could result in fatal accidents when they leaked. Thomas Midgley, Jr. created the first non-flammable, non-toxic chlorofluorocarbon gas, Freon, in 1928. The name is a trademark name owned by DuPont for any chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), or hydrofluorocarbon (HFC) refrigerant. The refrigerant names include a number indicating the molecular composition (e.g., R-11, R-12, R-22, R-134A). The blend most used in direct-expansion home and building comfort cooling is an HCFC known as chlorodifluoromethane (R-22).
Turn off the gas supply valve, typically located by your gas meter on the gas inlet pipe. Turn off the gas by rotating the valve one quarter turn with an adjustable wrench. When the gas is off,  the valve’s oblong stem points perpendicular to the inlet pipe. Then call your gas utility or the fire department from a remote location. Do not return to your home until you know it is safe.
If you have a heating or cooling emergency, call Vredevoogd Heating & Cooling Grand Rapids MI, Furnace Repair Lansing, Furnace Repair Kalamazoo and more at 616-828-5411. When you call you speak directly with one of our service representatives about the problem you are experiencing and schedule a service appointment. Naturally, we prioritize emergencies so you can count on us when your heating or cooling systems fail. After regular business hours, you can reach our customer service staff who will report your problem to on-call technicians. You can expect to hear back from a certified tech within 15 minutes of your call. Your heating and cooling emergency is important to us. We will visit your home ASAP to provide you with the superior service you’d expect from a Furnace Repair, Air Conditioning, AC Repair & HVAC leader like Vredevoogd Heating & Cooling Grand Rapids, AC Repair Lansing, AC Repair Kalamazoo.
6) Check your ductwork and seal open spaces. Make sure all your doors and windows are properly sealed to help keep your home cool. Perform a visual inspection of your ductwork occasionally to be sure it is sealed correctly. If the ductwork is not properly sealed, cool air will escape before getting into your home. The less cool air that escapes your home, the less your unit will have to work.
All modern air conditioning systems, even small window package units, are equipped with internal air filters. These are generally of a lightweight gauzy material, and must be replaced or washed as conditions warrant. For example, a building in a high dust environment, or a home with furry pets, will need to have the filters changed more often than buildings without these dirt loads. Failure to replace these filters as needed will contribute to a lower heat exchange rate, resulting in wasted energy, shortened equipment life, and higher energy bills; low air flow can result in iced-over evaporator coils, which can completely stop air flow. Additionally, very dirty or plugged filters can cause overheating during a heating cycle, and can result in damage to the system or even fire.
At BGE HOME, our customers trust our courteous and knowledgeable technicians to repair the most sophisticated heating and air conditioning system breakdowns. Every BGE HOME technician is licensed in their trade and adheres to a stringent in-house certification program that guarantees their knowledge, affirms their commitment to the customer, and ensures excellence in completing every heating and air conditioning repair with the highest level of quality.

The main purpose of your furnace filter is to ensure that none of the additional materials your fans pull back into the unit - such as hair and dust - actually damage the furnace or its parts. In the process, it also improves air quality in your home. Some annual inspections will include changing and cleaning this part of the unit. That said, you can also clean or change your furnace filteryourself. Costs for new filters range based on brand, but tend to be around $30.


Summer in Orlando, FL, Volusia, FL is a brutal combination of high temperatures and humidity.  The only possible way to find relief is through a well-functioning cooling system.  Running your air conditioner day in and day out puts a great deal of stress on the equipment and can add up to high utility bills.  You need your cooling system running in peak condition to ensure maximum reliability and efficiency.  When you notice any disruption in performance, don’t wait for complete system failure.  Call the dedicated team from Ferran Services for prompt, economical, and lasting solutions.
Although HVAC is executed in individual buildings or other enclosed spaces (like NORAD's underground headquarters), the equipment involved is in some cases an extension of a larger district heating (DH) or district cooling (DC) network, or a combined DHC network. In such cases, the operating and maintenance aspects are simplified and metering becomes necessary to bill for the energy that is consumed, and in some cases energy that is returned to the larger system. For example, at a given time one building may be utilizing chilled water for air conditioning and the warm water it returns may be used in another building for heating, or for the overall heating-portion of the DHC network (likely with energy added to boost the temperature).[4][5][6]
When natural gas, propane or heating oil are burned in a furnace, the resulting hot combustion gasses by burning natural gas, propane or heating oil circulate through a heat exchanger. The heat exchanger will, in turn, release that heat to be circulated by the furnace’s blower. The flue gas then travels through the flue vent, which carries the gas outside of the home. When a heat exchanger is cracked, it generally will require a complete system replacement. That is one of the reasons why we highly recommend annual preventive maintenance on your home’s furnace – this preventative furnace inspection and maintenance can greatly prolong the life of your home heating system.
To be honest, an HVAC technician’s work goes beyond more than installation, maintenance and repair. Most people are increasingly spending more time inside the home, so indoor air quality, home energy savings and total comfort have become even more important. There are several choices and solutions when it comes to HVAC systems, and our experts will consult with you every step of the way and work with you to achieve your goals.
Your HVAC professional can also help you verify that your system is properly matched by providing you with an AHRI Certificate of Certified Product Performance upon request. The certificate verifies that the outdoor unit (condenser) and the indoor unit (evaporator) combination has been certified as a matched system by the Air Conditioning, Heating and Refrigeration Institute (AHRI). For higher efficiency systems, this certification may help you obtain a rebate from your utility or local municipality if you have to replace your unit in whole or in part. Not all areas offer a rebate, but your technician will likely be able to provide information about the certification process. Fees for performing this certification vary, but generally are relatively inexpensive.

Any concern with your cooling system, however minor, is worth checking out.  NATE-certified technicians can quickly identify the problem and prevent more extensive and costly damage.  Catching defects quickly is the key to cost-effective repairs.  Elevated operational noise such as grinding, screeching, or wheezing is more than aggravating.  Think of those sounds as warning bells.  They’re an indication of component failure.  Listen to what they’re telling you and call for professional assistance.  Worn or misaligned belts are easily repaired.  Strange smells from contaminants such as mold or mildew are best handled before allergens enter breathing air, diminish airflow, and block the coil.  Temperature swings, unstable humidity, or extended run times are all signs of bigger problems on the way.  Call Ferran Services at 407-422-3551 (Orlando) or 386-322-6168 (Volusia), and our licensed technicians will perform a complete system check, ensuring safe, efficient and reliable operation.
It’s important to keep your furnace receives regular maintenance to ensure that it’s working properly and efficiently. Routine maintenance can also extend the life of your heating system by several years. Ask about our annual maintenance agreements that cover your plumbing, heating, and cooling systems and save you money. A furnace that has been neglected may be working too hard, which can result in inconsistent air temperatures in your Minneapolis area home. Learn more about the importance of routine maintenance on your HVAC system.

In the United States, HVAC engineers generally are members of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), EPA Universal CFC certified (for installation and service of CFC HVAC devices), or locally engineer certified such as a Special to Chief Boilers License issued by the state or, in some jurisdictions, the city. ASHRAE is an international technical society for all individuals and organizations interested in HVAC. The Society, organized into regions, chapters, and student branches, allows exchange of HVAC knowledge and experiences for the benefit of the field's practitioners and the public. ASHRAE provides many opportunities to participate in the development of new knowledge via, for example, research and its many technical committees. These committees typically meet twice per year at the ASHRAE Annual and Winter Meetings. A popular product show, the AHR Expo, is held in conjunction with each winter meeting. The Society has approximately 50,000 members and has headquarters in Atlanta, Georgia.


No one wants to be stuck in the dead of summer with a broken air conditioner, or in the cold of winter with a broken furnace or boiler. That’s why we’re available any time of day to make your emergency heating and air conditioning repair and get your system up and running as quickly as possible. We’ll show up on time, in uniform and ready to make your HVAC repair right the first time. 

Nobody wants to deal with a broken furnace in winter. Lucky for you, our Denver furnace repair specialists are available 7 days a week. Don’t face cold winter nights without a well functioning furnace. Contact us, your Denver furnace repair company so that we can diagnose the problem and set you up with a preventative maintenance package so we can catch problems before they occur. Click HERE to learn more about our furnace related services.
The heat-exchanger cools the air that is being forced through it by the furnace blower. As the warm air comes in contact with this cool surface the water in the air condenses. By pulling the water molecules from the air. According to the psychometric chart[42] as relative humidity decreases in order to feel cool you will have to lower the temperature even more. A common way to counteract this effect is by installing a whole-home humidifier.[43] Similarly, installing a high efficient system this need to turn the temperature down wont have such and influence on your energy costs.
If you need fast and reliable furnace repairs in Denver, then contact Brothers Plumbing, Heating and Electric. If your house feels colder than you think it should, it could be because your heating system is malfunctioning. When you give us a call, a Denver furnace repair expert will be able to help right away and give you a complete diagnosis of any problems. We will always attempt to fix your furnace before considering a replacement. If your furnace cannot be repaired, though our Denver furnace replacement experts are happy to discuss your options with you including modern energy efficient models.
HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, vehicles such as cars, trains, airplanes, ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.

The performance of vapor compression refrigeration cycles[27] is limited by thermodynamics. These air conditioning and heat pump devices move heat rather than convert it from one form to another, so thermal efficiencies do not appropriately describe the performance of these devices. The Coefficient-of-Performance (COP) measures performance, but this dimensionless measure has not been adopted. Instead, the Energy Efficiency Ratio (EER) has traditionally been used to characterize the performance of many HVAC systems. EER is the Energy Efficiency Ratio based on a 35 °C (95 °F) outdoor temperature. To more accurately describe the performance of air conditioning equipment over a typical cooling season a modified version of the EER, the Seasonal Energy Efficiency Ratio (SEER), or in Europe the ESEER, is used. SEER ratings are based on seasonal temperature averages instead of a constant 35 °C (95 °F) outdoor temperature. The current industry minimum SEER rating is 14 SEER.[28]


If a heat exchanger cracks or contains holes, leaks can release carbon monoxide into your home. Carbon monoxide is nearly impossible for humans to detect on their own due to its characteristics of being colorless and odorless. Because of this, it is referred to as “The Silent Killer”. Some symptoms of carbon monoxide poisoning include headache, dizziness, fatigue, nausea and vomiting. It is extremely important to have a HVAC technician perform a furnace inspection annually to prevent problems such as carbon monoxide poisoning. UGI Heating, Cooling & Plumbing offers yearly maintenance packages and service agreements that include yearly maintenance and furnace inspections.

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