Category: Blog

7 No-Cost Ways to Improve Air Conditioning Efficiency

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7 No-Cost Ways to Improve Air Conditioning Efficiency

Who says keeping cool always means larger expense? A/C units are undeniably among the energy hogs at home, but with the help of some easy tips from our professionals at Iceberg Mechanical, you can make it work for your budget and not against it! Check out these pointers below!

  • Clean Around Outdoor Condenser Units

They may be located outside, but mind you, condenser units are as important as your A/C’s indoor components. Always take the time to clean and check if it is obstructed with debris. Sometimes, overgrown bushes are hindering it from getting enough supply of air. For more thorough cleaning, seek professional help.

  • Keep Vents Unblocked

Blocked vents can cause hot and cold spots and may affect the performance of your air conditioning unit. Keep appliances and furniture away from it to allow for the free flow of air to the different parts of your home.

  • Few Degrees Raise in Thermostat Setting

Adjusting the thermostat 5-8 degrees higher in the summer can help you save energy big time. If you are still using a manually operated thermostat, now’s the time to make an upgrade to programmable ones for greater savings. With this, you can automatically adjust the settings anywhere, anytime via your smartphones.

  • Keep Heat-Emitting Appliances Away from the Thermostat

Lamps and other heat-emitting appliances will give your thermostat sensor the wrong idea that your home needs cooling. As a result, the thermostat will command your system to work longer and harder than it may need to.

  • Close Curtains and Blinds

Be sure to keep your blinds and curtains closed when the summer heat as at its peak and the sunlight hits the windows directly. This will prevent some of the heat from entering and warming your abode.

  • Limit the Use of Dryers and Ovens

Dryers draw warm air into your home while ovens add additional heat to it. You don’t want any of these to ruin the cool comfort inside, right? Aside from compromising your comfort, it will also cause your air conditioning unit to work harder.

  • Insulate your Exposed Ductwork

Duct leaks are causing your energy bill to rise. You can fix visual leaks with specialized duct sealing tapes but be sure to let a professional technician do the entire ductwork repair and sealing for best results.

There are maintenance checks that you can do yourself, but for complete and reliable service, we recommend you leave the job to the experts. If you are in New York City and needs professional service, you can always give us a call at Iceberg Mechanical. We offer high-quality services worthy of your trust. Call us!

Noises Your AC Makes and What They Might Mean

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Noises Your AC Makes and What They Might Mean

Are you among the many homeowners in New York City with a loud-operating air conditioning unit at home? Properly performing A/C units produce soft sounds but if yours is becoming mysteriously noisy, you should doubt its condition and send it straight for a professional check.

Here are the most common A/C noises and what they most likely mean:

  • Banging

Banging is the most reported A/C noise in residential areas in New York City. It is the most common sign of a loose or broken part inside the compressor- the crankshaft, the piston pin or the connecting rod. It may also mean that your compressor is out of balanced or needs immediate replacement.

  • Clanking

Just like banging noises, clanking can also be caused by an out-of-balance part. If the compressor or any parts inside it become loose, or the indoor or outdoor fan and blades are hitting each other, that’s when clanking happens. If not given an immediate solution, this may result in bigger issues in the unit.

  • Clicking

The start-up and shutdown of the electrical components produce normal clicking sounds, but continuous clicking is no longer typical. It could be a sign of a failing thermostat and potential electrical issues. A/C units are composed of complex electrical devices so be sure to pay attention to these clicking sounds to secure your safety in your home.

  • Buzzing

Bussing noises can mean a lot of things including but not limited to having loose parts, debris, failing outdoor fan and fan blades or dirty filters. Dirty condenser coils, copper lines rubbing against something and out-of-balance blower can also cause the buzzing noises.

  • Humming

If the compressor hums and refuses to start, you might be dealing with loose parts and refrigerant piping. Although humming noise is not as serious as the other sounds, it still pays off to check on your unit and get a professional maintenance service.

  • Rattling

A rattling noise is prevalent to old air conditioning units since this is an obvious sign of component deterioration and loosening. But aside from that, rattling can also be caused by twigs and leaves clogging the system, electrical contractors, and loose fan.

  • Screaming

If it is a high-pitched whistling or screaming that’s bothering you in your home, we recommend you shut down the A/C completely and schedule a professional A/C repair in New York City. Refrigerant leak and high pressure are the most likely causes and are dangerous to your family’s health.

Do these noises sound familiar when you turn your unit on? What you need is an expert check and repair! Give us a call at Iceberg Mechanical for professional A/C services worthy of your trust!

8 Energy & Money Saving Tips for Spring

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8 Energy & Money Saving Tips for Spring

Even if you deny it, we know that among your major concerns in the summer is high energy bill. Good thing, we have a bag full of tips to share to you about energy and money saving. You need to get these things done as early as the spring season to secure your goal when the heat wave arrives.

  • Get your unit serviced.

A small expense on annual maintenance can go a long way in attaining your money-saving objective. Have your air conditioner system serviced and inspected in the spring to ensure that every component is in tip-top shape. If they’re not, more energy will be consumed in their operation and you might be faced with expensive repairs in the future, too.

  • Set the thermostat higher

You don’t really have to fully depend on your cooling system for comfort. To save some cash, raise the setting by few degrees and do some major adjustments in your lifestyle. You may also take advantage of the benefits of a smart thermostat in both comfort and energy-saving.

  • Let the sunlight in

Don’t deprive your home of the natural light from the sun after the long winter months. While you’re at it, turn off the lights, adjust the thermostat setting and let the natural light and heat be distributed in your space.

  • Use ceiling fans

If you are looking for an economical way to cool your home, look no further than the ceiling fan. Raise your thermostat as much as 4 degrees and turn the ceiling fans on. You’ll be impressed with the comfortable atmosphere that you’ll still feel, but with lower energy usage from your air conditioner.

  • Cover your windows

Severe summer weather can increase your energy bill big time. But, you can reduce your expenses by covering your windows using efficient treatments such as shades and blinds. These helpful kits reduce heat gain, thus reducing your energy cost.

  • Seal the ducts

The ducts are crucial components of your HVAC system. If they are filled with holes and cracks, the cool air that your unit produces does not fully reach your home which means energy wastage. Prevent these wasteful leaks by sealing your ducts this spring season.

  • Allow fresh air in

When the weather permits, renew your indoor air by opening your windows. This will create a cross-breeze that lowers the temperature in your home even when the A/C is turned off.

  • Improve your insulation

Insulations in your windows and doors might have worn out already after the long cold months. During your spring maintenance check, be sure to improve or repair your insulation to keep conditioned air inside your home.

Do you need more tips for your home energy and money-saving goal? Visit our blog page at Iceberg Mechanical Corporation or talk directly to our professionals. Give us a call today!

Is Duct Sealing Important?

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Is Duct Sealing Important?

Do you know that the duct is a crucial component of your heating and cooling system? Unfortunately, it is most often overlooked during home improvement and maintenance service. With this, they become prone to leaks and connection gaps that allow air to escape. Do you have these issues in your duct system? See how duct sealing and maintenance helps!

How Does Duct Sealing and Maintenance Works?

Duct maintenance includes cleaning and checking the entire duct system. When it identifies the presence of leaks, you need to provide an immediate sealing solution. Duct leaks take place due to improper installation or years of normal use of the ducts. According to the US Department of Energy, duct leaks can cause up to 30% loss in the total output of your comfort systems.

Painting mastic into the leaks is the most common duct sealing solution in residential homes. Mastic is a stiff but flexible epoxy that can seal the hole while moving without cracking. For complex leaks, mastic needs to be supplemented with metallic regulation tape to seal the holes fully. Duct sealing is recommended at least twice a year to cope with the new-formed leaks.

Benefits of Duct Sealing

A well-designed and properly sealed duct offers a lot of benefits:

Comfort. Duct sealing fixes hot and cold spots in rooms. It provides even, comfortable temperature in the house.

Indoor Air Quality. The leaks in the ducts can serve as a passageway for fumes, chemicals, and dust to enter your space, compromising your indoor air quality. No matter how vigilant you are in replacing the filters, still, you won’t get a healthy IAQ with leaks in your ductworks.


Combustion gases are released by gas appliances during their normal operation, and these should be vented out properly. With leaks, however, “backdrafting” occurs which allow these gases to enter and circulate in your home. Sealing the leaks will minimize this risk.

 Save Money

The efficiency of your unit can reduce by up to 30% with leaky ducts. Sealing them will boost your unit’s efficiency and save money on your heating and cooling costs.

Professional Duct Sealing Service in Brooklyn, NY

Duct maintenance, sealing, and repair are complex tasks. Without proper skills and training, you might just end up making things worse. If you are in Brooklyn, NY or nearby towns, we recommend you only let the experts work with your duct issues. Don’t worry; you do not have to search far. Iceberg Mechanical is just a call away! Talk to our professionals today!

Humidity and Heating Systems

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Humidity and Heating Systems

Do you know how humidity issues affect the performance of your heating systems? Let’s discuss some basic humidity principles, how it affects home heating operations and what you can do about them.

Humidity Basics

Relative humidity (RH) describes the amount of moisture in the air as a percentage. The ideal winter humidity ranges from 40%- 60%. Outside of these levels means your home is at risk of IAQ issues. Low humidity is common in the cold months since the cold air is not able to hold as much moisture as warm air.

Problems encountered with low humidity include dry skin and nasal passages, aggravated sinuses, irritated eyes and even damage to flooring. The temperature inside also becomes cooler than the thermostat reading. Your heating units may be working too hard but still can’t provide the comfort you deserve.

What Causes Humidity to Drop?

The most common causes are leaks and poor insulation since these allow cold air to enter your home. Even with a humidifier, it will be hard to overcome this influence with the continuous cold air movement in your home. Since cold air holds less moisture, it becomes a dehumidifier and causes indoor humidity to drop.

Aside from your health, your heating systems are also at risk of overheating due to low indoor humidity. Even at optimum performance, it will be hard for them to keep a comfortable indoor temperature when moisture is too low. This is the reason why you still feel cold even when the thermostat is set too high.

Strategies for Humidification

Adding an appropriate amount of moisture is the best remedy for low humidity issues. But before this, you need to identify first the pathways where air and moisture are traveling through and seal them. Most of the time, poor insulation and duct leakage are the culprits behind this issue.

When the root has been identified and given a solution, you can now start managing the indoor humidity level. There are a lot of ways to keep an ideal home humidity in the winter:

  • Use a portable room humidifier.
  • Add live houseplants.
  • Place water basins near your heating units.
  • Add a whole house humidifier.

Important Benefits of Humidifiers

Here are the important benefits of humidifiers in the long cold months:

  • Reduces the risk of infections and increases healing time
  • Improves breathing
  • Softer glowing skin
  • Snoring relief
  • Alleviates sore throat
  • Improves sleep
  • Reduces the possibility of electric shock
  • Prevents wood furnishing from cracking
  • Helps your heating system in warming your home fast

Keeping the right humidity level is important for a comfortable winter season. If you are having issues with your indoor moisture, do not hesitate to give us a call at Iceberg Mechanical. We are always ready to help you with your comfort needs.

Common Causes of Heating and Cooling System Fires

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Common Causes of Heating and Cooling System Fires

Do you know that the second leading cause of house fires involves heating equipment? Since you will be using them more this season, it’s just right to be extra cautious of the potential problems related to your units that can lead to a fire. Check out these important things that you must consider:

Lack of Maintenance

Is your heating and cooling system regularly maintained? If you neglected your fall-maintenance schedule, it’s not too late to have your unit checked today. Clogged air filters, dust accumulation in the motors and faulty parts are the most common causes of system overheating that can lead to fire. These cases can be prevented with the regular HVAC maintenance schedule.

Flammable Materials Nearby

The danger of fire is too great with all the combustible materials near your heating and cooling systems. You should always put at least 3 feet distance between your HVAC systems and products like gasoline, leaves, pillows, clothing and other flammable things.

Space Heater Carelessness

Space heaters are great heating support but equally dangerous when misused. If you are using space heaters, you should familiarize yourself with the safety guidelines. This includes removing flammable objects around the device, not using extension cords, and turning the space heater off when you are going to sleep or leaving home.

Chimney Creosote

For wood-burning stove or fireplaces, you should pay extra attention to the combustible substance that builds up over time in the chimney. This is called the creosote. To prevent the risk of fire, be sure to schedule a professional cleaning service at least once a year, preferably before the advent of the cold seasons.

Furnace Flame Rollouts

When there is an insufficient amount of oxygen in the furnace, flames can roll out of a closed combustion area and cause trouble. Ventilation insufficiency often results in poor ventilation. A clogged filter and nest or yard debris outside the vents also contribute to dust build up in the flue which limits the oxygen supply. If you notice discoloration in the furnace cover, call a professional technician right away.

It is always better to be prepared for any case of fire. Make sure that smoke alarms and extinguishers are functioning properly and always ready to be used. But most of all, it’s a good idea to keep your units properly maintained by certified HVAC professionals. It may sound like another set of expense, but you will surely benefit from it in the long run, especially when it comes to the safety of your family and properties.

Need HVAC maintenance service right away? Call us at Iceberg Mechanical Corporation today!

Give Your Family Personalized Comfort Year Round With Heat Pump Technology

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Conventional heat pump systems are known for poor efficiency and performance in cold temperatures. Today, thanks to the integration of INVERTER-driven variable speed compressor technology, highly-efficient, modern heat pump systems offer homes optimized comfort conditioning no matter the season or temperature.


When utilizing a zoned HVAC configuration, each heat pump system consists of one or multiple ducted or ductless air handlers and an outdoor condensing unit. One outdoor unit can control up to eight indoor units, providing personalized temperature control, in each individual space, depending on the occupant’s preference. Refrigerant lines connect the indoor unit to the outdoor unit. During summer, the system produces air conditioning when refrigerant absorbs heat energy from inside your home and expels it outdoors. During winter, the heat transfer process reverses as refrigerant extracts heat energy from the outside air and transfers the heat inside to warm your home. With the outdoor unit operating with INVERTER-driven compressor technology, the system speeds up or slows down to match the precise cooling and heating requirements of the space, keeping efficiencies high and costs down.


Summer and winter both bring extreme temperature conditions. While conventional heat pumps were mostly used in mild climates, today’s technology is so advanced that heat pumps are a sought-after solution for many regions, including those with extreme weather conditions. With hyper-heat technology, the compressors of modern heat pumps can extract heat from outside air to warm homes even in negative outdoor temperatures.


Having clean, healthy air free of pollutants is of the utmost importance for all walks of life, particularly in the home. Unlike traditional HVAC systems that filter indoor air in one central location, the indoor units of zoned heat pump technology filter air within the individual spaces being conditioned. Many air handlers today even offer advanced air filtration, further improving the quality of your family’s indoor air.

With both ductless and ducted air handler options, heat pump systems offer families customizable comfort and reliability that fit any aesthetic. Don’t wait. Choose this whole-home solution to achieve healthy, energy-efficient conditioning.

Keep Warm This Winter: Inverter Technology For Any Climate

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When ductless cooling and heating units first became popular, they had one very serious limitation – they were not recommended for homeowners in extremely cold climates. Many manufacturers would recommend that homeowners who live in northern regions adopt a supplemental heating source for extremely cold days, which cancelled out the energy efficiency of the unit. Many ductless systems were actually designed to shut down at -10º F in order to protect the technology from failure. This left homeowners using expensive heat pumps, space heaters and even dangerous propane tanks to heat their homes.

Technology has finally evolved and homeowners can now achieve exceptional, year-round comfort with a single split-ductless unit. These new units are able to heat at maximum efficiency no matter how cold the climate – even to -13º F.

How Does it Work?

Traditional split systems lose heat energy in the outdoor coil. Thanks to recent advances, Hyper-Heating INVERTER technology (H2i®) is able to collect that energy, helping the system to continue to operate at capacity in extreme temperatures.

In cold climates, heat pumps typically experience a decrease in pressure, refrigerant flow rate and operational capacity. INVERTER technology actually allows for higher heating speeds at a lower temperature, without putting extra strain on the unit or potentially causing long-term damage to the compressor.

Some of the differences between traditional technology and H2i technology that make it attainable for those who live in cold climates include:

  • Consistent Room Temperature – No Ups and Downs, Ons and Offs: Conventional heat pumps experience uncomfortable and extreme temperature fluctuations while INVERTER-driven pumps are able to self-adjust, providing consistent room temperature, even when the outdoor temperature dips below zero.
  • Consume Only The Energy You Need: INVERTERzoning systems deliver only the amount of hot air needed to achieve the desired temperature – no more, no less.
  • Heats Up Quickly: It takes traditional systems a very long time to reach the desired temperature, while the high rotation speeds of INVERTER systems allow for quick and efficient cooling and heating.
  • Energy Use is Even and Steady: Every time the compressor turns on in a traditional unit, energy consumption surges. On startup, INVERTER systems use less current, avoiding spikes in energy usage.

Homeowners who live in extreme climates have been traditionally left out in the cold when it comes to the ductless cooling and heating revolution. For decades, they have remained tethered to baseboards, propane heaters and traditional, inefficient ducted systems. INVERTER technology has finally set Northerners free, giving them the ability to achieve energy-efficient and consistent home comfort, no matter how high or how low the mercury may go. 

Take On Winter: Keep Your Home Warm With Hyper-Heating™ Technology

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Why Hyper-Heating Should Matter to You

When winter plunges you into sub-zero territory, your primary heating source is not always enough to keep your house and family comfortable. Supplementing your existing oil, gas, propane or wood system is a must, especially when temperatures drop to -5º F, -10º, and beyond. Hyper-Heating technology is designed to provide you with year-round comfort even in the dead of winter. Especially in the dead of winter.

Hyper-Heating vs. Conventional Heat Pumps

Split-ductless heat pumps solved a big problem for people in temperate regions of the country. These systems, which feature an indoor and outdoor unit, allowed them to cool and heat their homes without the hassle, expense and inefficiency associated with furnaces, stoves, and other traditional air conditioning methods.

How do they work? Heat pumps use refrigerant to transfer heat. In the winter, they absorb warmth from the outside air and transfer it inside. In the summer, they extract warmth from the home and transfer it outside.

Until now, these heat pumps left you out in the cold. Designed for moderate climates, traditional models can’t handle extreme temperatures. As sub-zero weather sets in, the refrigerant doesn’t work as efficiently. The pumps can’t bring in enough heat. Patented Hyper-Heating technology, though, erases the 20°+ separating you from year-round comfort, energy savings and increased efficiency.

Year-Round Comfort and Control

Hyper-Heating INVERTER® (H2i®) technology uses an enhanced compressor system to deliver heat down to -13° F. When the weather outside is frightful, you’ll be snug and warm. Supplementing your existing climate control system with Hyper-Heating offers a number of other benefits:

  • Efficiency. H2i systems qualify for the ENERGY STAR Tier 2 level. This means that these ductless mini-splits go above and beyond ENERGY STAR’s minimum requirements for efficiency. The INVERTER-driven compressor uses only the energy it needs to cool or heat an area. It automatically senses and responds to changes without constantly turning on and off. This saves energy – and money.

  • Cost savings. Oil, propane, and gas bills can give you sticker shock, especially during cold (or hot) snaps. By using a Hyper-Heating solution as a supplement, you can dramatically cut your costs. Some users see a 50 percent reduction in energy use. You may also qualify for tax incentives, rebates and other programs.

  • Room-by-room Comfort. Do you spend most of your time in the living room with your family or working in your home office? Why heat unused rooms? Ductless units offer precise control so you keep the rooms you use most at your ideal temperature. They also allow you to heat rooms that your existing system doesn’t reach efficiently or effectively. Whether you want to work comfortably in your garage or turn your three-season porch into a four-season addition, Hyper-Heating puts the control into your hands. Guess what? This saves money too.
  • Convenience. An H2i system can usually be installed in about a day. No messy ductwork. No huge remodelling bill. No damage to your home’s architectural integrity. These ductless heat pumps work seamlessly with your existing climate control system.

They can adapt to meet the changing needs of your home so you enjoy year-round comfort in extreme temperatures. Don’t let the term “Hyper-Heating” fool you. They cool as effectively as they heat. You don’t need a separate unit, or another expense, to condition your home in the summer.

Supplementing your oil, gas, propane or wood heating systems is a reality for those of us in the coldest regions of the country. Thanks to Hyper-Heating technology, efficient, effective ductless heat pumps are also a reality.

Tackle Single Room Challenges With A Ductless Mini Split System

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Every home, condominium and townhouse has one. It’s impossible to control. The only thing that is predicable about it is its unpredictability. It feels like it costs more than it’s worth. Most homeowners ban their family members from going near it six months out of the year. What is it? The single room that, no matter how hard you wish, hope and try, is always 10 degrees hotter or 10 degrees colder than the rest of the home. Consider a ductless mini-split system, perfect for heating and cooling that one problem area of your home.

Are You Able to Use Every Single Room in Your Home?

These “hot spots” and “cold spots” can be extremely frustrating for homeowners. Window air conditioners and space heaters can help, but they also cost a lot of money to operate. As a result, most homeowners shut up those rooms in the heat of summer and cold of winter. Closing off access to a den, rec room or even a bedroom is impractical. It reduces living space and can cause frustration among family members.

Thankfully, homeowners need not suffer any longer. Ductless mini split systems can be used to control the temperature of a single room, improving comfort and reducing energy costs. These ductless split systems have two main components: an indoor unit that is mounted either on a wall or ceiling and an outdoor unit that houses the condenser. The two components are connected by a small conduit rather than ductwork, and offer cooling and heating in one system, which makes these units easier to install and far more efficient than window ACs or space heaters.

Ductless mini split systems are effective for homes that have:

  • Livable attics or basements
  • Sun rooms that homeowners would like to use as livable space in winter
  • Garages that have been converted to livable space
  • Hot spots and cold spots – rooms that just never feel as comfortable as the rest of the house
  • Guest rooms, rec rooms or other rooms that are only rarely occupied

Turn Your Entire House Into Livable Space

Split-ductless systems are ideal for cooling or heating single rooms that get used, but not all the time. Rather than cranking the thermostat up or down to reach a single room, ductless mini split systems can be used to achieve comfort in those spaces only when they are occupied. If no one is in the room, there is no need to pay to cool or heat that area.

If you own a home, you should be able to use each room in that home whenever you want. Shutting off a single room in the winter and summer made sense several decades ago when there was simply no other option. Thanks to home zoning, there is no longer a need to board up livable rooms. Ductless split systems provide families with almost unlimited, customizable options that allow them to keep their houses open year-round, without throwing money out the window.