Category: Blog

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. 

5 Advantages Of Ductless Heating And Cooling Systems

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Most people have heard of ductless heating and cooling systems, and they have probably seen the small, indoor devices installed high on walls in homes, restaurants or office buildings. But what do you really know about these systems?

1. They Offer Highly Flexible Solutions

Whereas traditional heat pumps and central air conditioning systems force cooled and heated air through ducts, ductless heating and cooling systems deliver air directly into different zones. They are comprised of a small outdoor unit and one or more indoor units that require nothing more than mounting capabilities and access to electricity.

Sometimes referred to as split systems, mini split systems, multi-split systems, or split-ductless systems, ductless heating and cooling offers home and business owners a cost-effective way to replace inefficient window air conditioning units, space heaters and electric baseboard heaters. They can be installed in home additions, new construction, condominiums and apartments, or to improve temperature control in specific rooms. Ductless systems can even be fit for buildings that currently use ducted forced-air systems. 

2. They Save You Money

One of the biggest reasons why homeowners switch to ductless heating and cooling is overall cost savings. In recent years, utility costs across the country have skyrocketed. When a home’s temperature depends upon an inefficient system, monthly bills can quickly climb out of control. Ductless heating and air conditioning systems operate on less power – they are smaller than traditional forced-air systems, and because the temperature-controlled air is delivered directly into a room, there is no loss in efficiency. Multi-split systems also allow homeowners to create “zones” in their home, which means they no longer have to cool or heat rooms that aren’t occupied. 

In addition to saving money on utilities, homeowners may also be eligible for tax credits or utility rebates for the year they install a ductless air conditioning and heating system. There are many programs at the federal, state and local level that allow homeowners and businesses to take advantage of these additional savings.

3. They Improve Indoor Air Quality – Happy Breathing!

Often times, the quality of indoor air can actually be lower than the quality of outdoor air. With traditional HVAC systems, air ducts must be professionally cleaned on a regular basis, and even after cleaning, dust and allergens are left behind. Ductless air conditioning and heating systems, on the other hand, offer multi-stage filtration that can drastically reduce dust, bacteria, pollen, allergens and other particulates in the air.

4. They Are Quick and Easy to Install

Installing a traditional, ducted system can take several weeks and disrupts daily activities in the home. Ductless systems are far less invasive to install, and depending upon the number of indoor and outdoor units required, can be up and running in as little as one day.  

Mini-split systems run on small pipes that require a mere three-inch hole. That means homeowners don’t have to worry about rebuilding walls or ceilings around ductwork and there is no loss of precious square footage.

5. Ductless Air Conditioning Lowers Your Carbon Footprint

The small size of a ductless cooling system and its zoning capabilities allows for greater energy efficiency. Ductless heating and air conditioning systems follow ENERGY STAR guidelines, which means they are far more energy efficient than the minimum standards set forth by the U.S. federal government. Improved efficiency saves money, of course, but it also helps reduce your total carbon output. 

Additionally, ductless systems take advantage of advances in chemistry to reduce effects on the environment. Ductless systems use a refrigerant called R410A, which is known for its zero ozone depletion potential. This means the system will have less impact on the environment throughout its lifecycle. 

Ductless air conditioning and heating systems are energy efficient, environmentally friendly and completely customizable. They offer homeowners the ability to cool and heat specific zones of their home to the exact temperature they desire, providing consistent and exceptional year-round comfort. 

A Custom Fit For Your Home’s Cooling And Heating Dilemmas

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Upgrading your cooling and heating solution shouldn’t mean taking a sledgehammer to your walls, drastically changing your home décor, or redoing your entire floor plan. Your home is your inner sanctum and an upgrade in comfort shouldn’t mean a downgrade in appearance.

Luckily, ductless and short-ducted systems come in many shapes and sizes. Whether you’re the proud owner of a historic home or a laneway house with limited space, there is a solution that fits. While many homeowners like the convenience of a standard or deluxe wall-mount, others opt for floor-mounted, ceiling-recessed, and short-ducted indoor units.

In this article, we’ll explore how a ductless system makes your cooling and heating upgrade a breeze.

Master Bedroom

A larger bedroom—particularly the master bedroom—is a great setting for a wall-mount. Understated and stylish, a wall-mounted unit usually has the best features for comfort-minded individuals.

With a built-in air filter, allergens such as pollen, mold, and pet dander are easily removed from circulation. No more sneezing or itchy, runny noses at bedtime. The advanced i-see Sensor™ also provides the most even cooling and heating experience available. By sensing each and every section of your room—people included—hot and cold pockets are reduced to unpleasant memories. A better night’s sleep, at last.


Between kitchen ranges, cupboards, appliances and dishwashers, it can get pretty cramped in the kitchen. Where wall space is scarce, a horizontal-ducted unit is a good fit.

Featuring a short duct, which helps it fit into awkward places, this unit can be installed at either the floor or ceiling level. The end result is a small, nearly invisible vent. Equipped with an optional, MERV8-certified filter, this unit may be useful the next time you burn your toast. A ceiling-recessed unit, a good option in tight spaces, could also be a good fit.


If your office is a smaller room, say with angled walls, a wall-mounted unit may not fit into the scheme of things. In this case, a ceiling-recessed unit—which resembles a simple vent—could do the trick.

Providing an even distribution of air, without getting in the way, this unit does the job where wall or floor space is limited. It’s also great when you want to keep your system hidden from sight. A horizontal-ducted unit would also be a good fit in this situation.

Living Room

When it comes to your living room, a feature-rich indoor unit, like a wall-mount, is an ideal choice. When equipped with an i-see Sensor, the natural temperature differences in a larger, more open room is more easily tamed.

If you’re lacking in wall space, a floor-mounted unit could be just what the doctor ordered. At about the size of a small radiator, the floor-mount easily blends into your living space. Like its wall-loving counterpart, the floor-mount also has a built-in allergen filtration system and remote control.


With endless possibilities to mix and match indoor units, a ductless system is well-suited to character homes and those with difficult or space-limited layouts. Whether it’s a wall-mounted, floor-mounted, ceiling-recessed, or short-ducted unit, there is a solution that can keep your comfort—and design scheme—intact.

Four Reasons Wireless Comfort Control Makes Life Better

By admin,

Wireless technology has certainly made life more convenient. From watching our favorite movies and shows on demand to monitoring our health, we have taken control. So, why aren’t you bringing the same control to your home’s comfort?

Mitsubishi Electric has made it our mission to help make your home a more comfortable place. Our wireless comfort control options make it easier than ever to keep everyone comfortable.

1. Control at Your Fingertips

If you’ve just gotten the family to the table or settled in to watch a movie, you don’t want to get up to adjust the thermostat. With kumo cloud™ or RedLINK™ Wireless controls connected to your Mitsubishi Electric cooling and heating system, you don’t have to anymore. You can wirelessly control temperature from easy-to-use apps on just about any smartphone or tablet.

2. Personal Comfort for Everyone

Because both kumo cloud and RedLINK Wireless work with zoned comfort solutions from Mitsubishi Electric, you can easily and independently manage different areas of your home. Whether your zoned comfort solution is configured on a room-by-room or floor-by-floor plan, you can manage the temperature of any zone from your smartphone or tablet.

3. Maximum Efficiency

Whether you’re gone for the day or on vacation, you can control any connected zone, no matter where you are. If you forgot to set back your thermostat before you left for vacation, simply log in to the app and set to your desired temperature. You can even schedule the system to return to normal conditions on your arrival home.

If you have a vacation home or rental property, you can control that too. Get peace of mind that the temperature there is safe and cost-effective. Check in anytime, see and adjust the temperature and avoid frozen pipes or hefty heating bills.

4. Programming Made Simple

Setting schedules for your cooling and heating all the zones in your home is easy with kumo cloud and RedLINK Wireless. Identify zones, set temperatures, or troubleshoot system problems all from the convenience of your smartphone or tablet. On some systems, you can even check filter status, eliminating the need to do so manually.

The comfort of your home should always be under your control. Whether you’re out for the day or the month, whether you want to check in, cool down or warm up, you should know what’s going on in your home and have the ability to adjust it – without any hassle. And that’s exactly the power Mitsubishi Electric places right in your hands.