IERNA's Heating & Cooling Blog : Archive for September, 2014

How an Ultraviolet Light Works in Your Home

Monday, September 29th, 2014

If you have concerns about biological contaminants in your indoor air, one of the best tools to fight these types of particles is ultraviolet (UV) lighting. Also known as UV germicidal lights, these lights act as air purifiers by destroying biological contaminants. UV germicidal lights in Lutz are over 99.9% effective, and are safe for home use. The NATE and EPA certified indoor air quality specialists at Ierna’s Heating & Cooling can ensure professional installation of UV lights, so call us today.

How Does Ultraviolet (UV) Light Work?

UV lights emit radiation in the form of UV-C rays. These types of rays have the ability to destroy the DNA in biological contaminants and the life-sustaining proteins that help keep cells alive. This dual action not only kills the cell, it keeps it from replicating. As such, UV germicidal lighting doesn’t just get rid of biological contaminants: it eradicates them.

What Are the Benefits of UV Germicidal Lights?

There are several benefits to using UV light in your HVAC system:

  • Improved indoor air quality – by removing biological pollutants, you can increase the quality of your indoor air.
  • Stops mold and bacteria growth – the anti-microbial effect on contaminants helps stop biological growth.
  • Eliminates odors – UV lights kill the contaminants that can create unpleasant odors.
  • Generates negative hydroxyl ions – negative hydroxyl ions are natural compounds that remove pollutants from the air.
  • Flexible placement – UV lights can fit virtually anywhere, but the most common placement for them is in vents and over the evaporator coils.

Two items to note about UV lights are that they do not capture anything like a mechanical or electronic air cleaner will, and they do not draw particles to them. For biological contaminants to be destroyed, the contaminants have to pass within the area of radiation.

If you are looking to remove the biological contaminants in your home, UV germicidal lights in Lutz may be just what you need.

For professional installation of UV germicidal lights, call Ierna’s Heating & Cooling and schedule an appointment with one of our indoor air quality experts.

Continue Reading

How Duct Cleaning Improves AC Efficiency

Monday, September 22nd, 2014

Just because you cannot see the ductwork in the walls of your home doesn’t mean you shouldn’t think about them. The ventilation system of your house is what allows the proper distribution of cooled air from your air conditioner throughout the rooms. When the ducts become dirty (and they will become dirty over time, no matter how clean your home is) they will interfere with your AC’s efficiency, leading to higher bills. Regular cleaning is necessary to make sure that your air conditioning system doesn’t face too much resistance while doing its job.

If you have noticed an increase in your utility bills during times when the AC runs regularly, you may have clogged ducts. Open up one of the vent covers and reach inside with a digital camera and take a snapshot; if the image shows heavy dust, dirt, and lint along the inside of the ducts, you need to schedule professional duct cleaning right away. Call Ierna’s Heating & Cooling and speak to our Wesley Chapel, FL duct cleaning specialists to arrange for the work.

Why clean ducts equals a more efficient AC

All air conditioners are forced-air systems that blow out conditioned air into the rooms. Unless you have a ductless mini split air conditioner, your AC must send the air through a network of ducts. As with any kind of airflow, the air from an AC needs to meet as little resistance as possible. Only a small layer of dust will start to add friction against the movement of air, and this means the air conditioner must drain additional electricity to overcome the resistance. If the dust layer continues to develop, the friction will increase. It will also start to clog up the air filter of the AC, which will choke off the airflow into the cabinet and severely affect system efficiency.

There isn’t much you can do to prevent ductwork from becoming dirty. You can slow down the process by changing or cleaning the air filter monthly. However, dust will naturally enter the ductwork through the return air vents and begin to accrue inside the ventilation system. Usually it takes about two years for the buildup to begin to affect an air conditioner’s performance. If more than two years has passed since your last air duct cleaning, consider scheduling the service soon to protect AC efficiency and reliability.

Ierna’s Heating & Cooling provides duct cleaning in Wesley Chapel, FL and the surrounding areas. We use the comprehensive Rotobrush technology to make sure your ductwork receives a thorough cleaning without sustaining any damage.

Call Ierna’s Heating & Cooling today to schedule your regular duct cleaning so you can enjoy energy-saving performance from your air conditioner.

Continue Reading

How a Faulty Thermostat Can Damage Your AC

Monday, September 15th, 2014

The thermostat is one of the most vital parts of an air conditioning system, one that people interact with on an almost daily basis, and one of the few parts of an AC that sits in plain sight—yet few homeowners ever give it much thought. If the thermostat malfunctions, your home’s cooling and the system that takes care of it could be in for trouble.

When a malfunctioning thermostat causes problems, you need to call for expert air conditioning repair in Tampa Bay, FL from a company with NATE-certified technicians and the training to handle any necessary work. You need to call Ierna’s Heating & Cooling. We have same day emergency service, so don’t hesitate to call when you need that air conditioner repair done now.

Some AC problems due to a malfunctioning thermostat

When a thermostat develops repair problems, it will often lose its connection to the air conditioner. In such cases, although you will need repair technicians to fix the thermostat, you shouldn’t have damage to the AC itself that will need work.

However, there are ways that a thermostat can go wrong that will cause serious problems for the air conditioner. One of them is when a miscalibration in the thermostat leads to a short-cycling AC. “Short-cycling” is when an air conditioner’s cooling cycle turns off before it can finish: the compressor begins its work, and then abruptly shuts off because the thermostat has incorrectly determined that it has reached its target temperature. But soon after the compressor turns off, it will turn back on again, starting the process anew.

The reason this will turn into a significant AC repair problem is because it places severe stress on the compressor, the most valuable part of an air conditioner and the most expensive component to replace should it fail. The start-stop action of short-cycling is one of the worst things that a compressor can undergo. The stress isn’t limited to the compressor either: it will also affect the motors and cause them to burn out.

The wires in the thermostat that connect to the AC can fail in a way that will cause the air conditioner’s fan to run without stop, and this is also potentially very damaging for the AC as it places heavy strain on the fan motor.

Issues with the thermostat often initially appear as problems in other parts of the AC (for example, short cycling can occur because of a loss of refrigerant), so you may not know that the thermostat is the cause at the beginning. However, your repair technician can track the source of the malfunction, so whenever you detect anything amiss with your cooling system, get on the phone and call a reputable repair contractor.

You can also call us for upgrades to your current thermostat to a more efficient model.

Our team at Ierna’s Heating & Cooling is standing by now to help you with air conditioning repair in Tampa, FL. Call us today. 

Continue Reading

Why Indoor Air Quality Matters

Monday, September 8th, 2014

Being comfortable in your home isn’t just about temperature – it’s about the quality of your indoor air. Poor indoor air can contribute to allergy problems, health issues and problems with your air conditioner. There are a number of products on the market that can help you achieve good indoor air quality in Land O’Lakes, and Ierna’s can provide the professional installation you need for all upgrades to your air conditioning system.

Common Air Contaminants

There are a number of common air contaminants that can affect your indoor air quality:

  • VOCs (volatile organic compounds) – VOCs are carbon-based chemicals that emit gases from certain types of solids and/or liquids, many of them household items. Effects can be short- or long-term. Typical substances that emit VOCs are paint, paint strippers, cleaning supplies, pesticides, glues and adhesives.

 

  • Carbon monoxide/dioxide and nitrogen dioxide – these types of fumes typically enter the air in your living spaces from large appliances like furnaces and hot water heaters, which use combustible fuels such as oil and gas. Wood-burning stoves and kerosene heaters can also contribute to this kind of indoor air pollution.

 

  • Respirable particulates (RSPs) – RSPs are small particles from aerosols, tobacco products, unvented kerosene and gas heaters and wood combustion that can penetrate and linger in the deeper part of your lungs (the non-ciliated portions). This can cause serious problems for those with chronic respiratory disorders like asthma and COPD, and can also cause ongoing irritation for others, including coughing and wheezing.

 

  • Biological contaminants – mold, mildew, fungus, algae, dust mites, allergens, bacteria and viruses are all biological contaminants that can reside, develop and grow within your air conditioning system and become a part of your indoor air.

 

Health Problems That Can Ensue from Poor Indoor Air Quality

  • Allergic reactions
  • Respiratory attacks (with disorders like asthma)
  • Respiratory issues (coughing, wheezing)
  • Headaches
  • Nose bleeds
  • Nasal congestion
  • Sore throat
  • Lethargy
  • Fatigue
  • Muscle pain

As you can see, there can be a lot going on with your indoor air, and it may make you unhealthy.

If you are concerned about the quality of your indoor air, call Ierna’s Heating & Cooling today and schedule an appointment with one of our experts.

Continue Reading

What’s the Difference between Electronic and Mechanical Air Cleaners?

Monday, September 1st, 2014

Protecting your home’s indoor air quality often requires special effort if you want both healthy air and an efficient heating and cooling system. One of the best methods to have both is to install an air cleaner for your HVAC system. These cleaners remove contaminating particles from the air that circulates through the HVAC system while providing minimal resistance to airflow. With the right air cleaner installed with the assistance of a professional, you can have close to 100% of the unwanted pollutants in your air removed.

It’s vital that you have an indoor air quality specialists help you with finding and installing an air cleaner. The wrong size and type of air cleaner can end up impairing your HVAC system or failing to adequately eliminate the particles you need filtered.

At Ierna’s Heating & Cooling, we are proud of the service we provide in improving indoor air quality in New Port Richey, FL with air cleaners. There are different types of air cleaners that we install, but most fall into two broad groups: mechanical or electrical.

Mechanical air cleaners

A mechanical air cleaner uses a mesh of material, usually fiberglass fibers, to trap particles passing through them. They both impede the particles and attract them to the surface of the fibers, where they become lodged. The most common type of mechanical air cleaner is the HEPA (high energy particulate air) filter. However, these are uncommon in homes because they can create too much blockage against airflow. Professionals will find a mechanical filter that will trap particles without creating too much air resistance.

Electronic air cleaners

Unlike mechanical air cleaners, electronic cleaners are not filters at all. They instead create an electric field that ionizes particles that pass through it. When the particles are ionized, they are drawn down to a pair of plates on the cleaner and trapped there. Electronic air cleaners require an external power source to run, but they are often necessary because they can remove contamination that is too small for a mechanical filter to catch.

Find the right air cleaner for you

Mechanical air filters and electronic air cleaners are not the only option you have for cleansing the air that flows through your HVAC system: you can also have UV lights installed or other filtration systems. There are also HVAC systems designed specifically to handle HEPA filters. There’s also no reason you can’t have more than one type of cleaner or filter installed.

Call Ierna’s Heating & Cooling to talk to our specialists in indoor air quality, and they will help you sort through the options available and find the air cleaners in New Richey, FL.

Continue Reading