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Posts Tagged ‘Mesa’

Why Consider a Ductless Heating System?

Friday, December 5th, 2014

Ductless heating systems may seem like an odd choice for heating your entire home. They take up wall space, can only heat one room at a time, and are less efficient than traditional heating systems in extremely cold climates. However, ductless heating systems have quite a few unique advantages over other systems when used to heat an entire home. Read on for some of the reasons why you should consider a ductless heating system for your home.

What is a Ductless System?

Ductless heating systems utilize heat pump technology move heat from one area to another. This is in contrast to traditional combustion systems, which burn fuel to generate heat. The ductless unit is split into two parts, an interior and exterior. The interior unit is installed in a room of the house, usually on the wall or ceiling, while the exterior unit is located on an outside wall. When the unit is turned on, the exterior unit uses an evaporator coil to siphon thermal energy from the surrounding air. That energy is then sent, via the refrigerant line, to the interior unit. The interior unit then uses that energy to heat and circulate the air in the room.

Why Should I Consider One?

As the name implies, ductless systems eschew ductwork completely. This limits each unit to heating just one room, which is why it has to be installed in that room. It may seem as though this is a disadvantage to using a ductless system. However, there are a couple of things to consider. First, each ductless system is installed with its own thermostat. This allows different rooms in the house to be set at different temperatures, conserving energy and letting each occupant choose a temperature that is comfortable for him or her.

The second thing to consider is energy efficiency. Centralized forced air systems lose as much as 30% of their heat on average to leaks in the ductwork. Ductless systems completely avoid this issue, delivering all of their heat to the target destination and saving money in the process.

If you’d like to know more about ductless systems, call Johns Refrigeration. We offer heating repair services throughout the Mesa area.

3 Signs That You Need to Schedule Repairs for Your Heating System

Friday, November 28th, 2014

When is the last time you called a technician to look at your heating system? If it’s been a year or more, your unit is unfortunately at risk for developing problems that could result in a total system failure. Many homeowners don’t notice the signs of heating repair, or they are not aware that the behavior their heater exhibits is unusual or hazardous. We’ve put together a few of the most common signs that your heating system is in trouble, so you know what to look for in the future.

  • Short Cycling: Short cycling may be indicative of a couple of issues, but in any case it’s bad news for your entire unit. If your system turns on frequently only to shut off immediately afterwards, it could be due to an improperly sized system (which may need premature replacement) or a broken motor or faulty electrical component. In any case, it causes your system to become run down and requires immediate attention.
  • Low Airflow: If you’re not feeling enough airflow in your home, it could be because of a problem with the components of your heater or a dirty filter. Even after you change the filter, you should call a trained technician as well who can make sure it’s not actually a larger problem or an issue in the ductwork. Leaky ducts are a leading cause of low airflow and can lead to efficiency issues and a worn down HVAC system.
  • Strange Noises: If you hear strange noises from your home heater, you should always be suspicious. Any heating system makes a little bit of noise, but a loud banging or clanking noise, a hissing, or any sound that doesn’t seem quite right is nothing to brush off.

We recommend scheduling annual maintenance as well, so that you can keep such problems from reoccurring in the future. Maintenance involves a thorough inspection, cleaning, and a few adjustments of your heater before the heating season begins or toward the beginning of the season. Call Johns Refrigeration to learn more about maintenance or for quick repairs when you notice the signs that you’re in need of heating repair. Schedule repairs for your heater in Mesa with us today!

How Does a Heat Pump Provide Heat?

Friday, November 14th, 2014

Your current heating system is finally on the fritz. It may have served you well over the years, but if it’s frequently breaking down, does not perform as it once did, and/or costs a lot of money to run, a new system may actually be of benefit to you. New heating systems are built to be far more efficient than they were a decade or two ago, as the U.S. government repeatedly sets new standards for HVAC efficiency. And if you think you may need a new air conditioning system as well, then you may be in luck. One of the most efficient heating systems available on the market today is also extremely effective for cooling.

The term “heat pump” is deceptive as it may sound like this is primarily a heating system. However, this is untrue; “heat pump” simply refers to a type of system that moves heat from one area to another. An air-source heat pump, the most common type of heat pump used in homes today, is actually more closely linked to an air conditioner, as it contains nearly all of the components therein. So how does a heat pump also help with heating?

First, let’s take a look at how a heat pump works for cooling. It contains the same components as an air conditioning system. Most notably, there is an outdoor and an indoor fan, the outside compressor, a condenser coil, and an evaporator coil. Refrigerant runs through the inside and outside portions of the heat pump, starting at the compressor, where it’s pressurized and heated so that it can release heat during condensation at the outside coil. Refrigerant then moves inside, where it evaporates and absorbs heat from the air, only to release this heat outside and continue the cycle.

The one component that differentiates a heat pump from a standard air conditioner is the reversing valve. This allows refrigerant to flow in the opposite direction. Now, refrigerant absorbs heat as it evaporates outside and heat dissipates into your house at the inside coil as refrigerant condenses. So what makes this unit so efficient for heating? Simply put, it takes a lot more energy to create heat, as most heating systems do, than to move it from place to place. Therefore, a heat pump can save you a whole lot of money in the heating season.

Call Johns Refrigeration to learn about more of your options for heating in Mesa, AZ.

Furnace or Heat Pump – Which Is Better?

Friday, November 7th, 2014

Homeowners have a number of choices when it comes to selecting a new heating system for their home. Not only are there choices in the type of system you can have, there are choices when it comes to fuel types and how air is delivered to your living spaces. There is also the question of choosing a more traditional system like a furnace, or selecting something with newer technology, like a heat pump. We’re going to take a look at both of these heating systems today, but one of the best ways to ensure that you choose a heating system, that fits both you and your home is to work with a professional from start to finish. John’s Refrigeration has the trained and certified professionals who can help you decide which system will work best in your home, so call us today.

Furnaces

Furnaces can use oil, gas, propane or electricity as fuel. Combustion furnaces heat by warming the heat exchanger inside the unit and blowing the warmed air into your home. Electric furnaces use tightly-wound coils that are heated by electricity to warm air, with ductwork distributing the heated air throughout your home. Some of the benefits of furnaces are:

  • Fast heat – furnaces can heat living areas quickly.
  • Widely available – furnaces are one of the most commonly-used heating systems around; as such, parts are widely available as are replacement units.
  • Can be used with air conditioning – because furnaces need ductwork to deliver heat, it is easy to add air conditioning to your home when you have a furnace.

Heat Pumps

Heat pumps do not use fossil fuels to operate, nor do they generate heat via combustion. Heat pumps work by transferring heat from one place to another. They do this with the help of refrigerant, which facilitates the heat transfer process. During the winter, heat pumps absorb the heat in the surrounding air, concentrate it and distribute it to your home. In summer, the refrigerant absorbs the heat from your indoors and transfer it outside. Some of the benefits heat pumps offer are:

  • Very energy efficient – heat pumps use approximately 25% of the electricity a whole-home air conditioner uses, making them very energy efficient.
  • Heats and cools – heat pumps are 2-in-1 devices that can both heat and cool your home.
  • Doesn’t need ductwork – heat pumps can work with ductless systems, so you don’t have to have ductwork to install a heat pump system.

When it comes to deciding what type of heating system to install in your home, the best decision you can make is to work with a professional. Call Johns Refrigeration today and schedule your heating service in Mesa, AZ with one of our experts.

Should I Repair or Replace My Heating System?

Friday, October 31st, 2014

If your heating system is on the brink of failure, you’re faced with an important decision: should you repair or replace your unit? Of course, if your system still has a couple of decent years left, you likely want to make smaller repairs to avoid the high cost of replacement. On the other hand, if you pay to repair your heating system now, only to have another part break shortly afterwards, you may regret your decision not to schedule replacement in the first place.

So how do you decide which choice is most cost effective? Is your older system worth the cost of repairs, or would replacement turn out to be a better option? In this guide, we’ll go over a few points to consider when deciding what to do with your older heating system. The friendly professionals at Johns Refrigeration can inspect your system to help you make the right decision about heating.

  • It’s cheaper to replace an entire system than repair it piece-by-piece. When one component of your older heating system has broken down, chances are that the other components are not too far behind. When you replace each part individually, you end up paying more in the long run. On the other hand, if your system is not too far along in its lifespan, a simple repair usually does the trick, provided the heating system was properly sized during installation.
  • After a certain age, heating systems are at a high risk of breakdowns. Most furnaces last up to 15 years, while heat pumps can last even longer. However, this is only true with proper maintenance. If your heating system has not been examined by a technician in many years, it may be close to failure, even without any noticeable repair needs.
  • Professional technicians are qualified to handle this type of decision. The best person to help you decide on the future of your heating system is a trained technician. They have the tools and the experience to tell when your system is at a high risk and whether an inexpensive repair will do instead. Furthermore, they may be able to recommend a more effective and efficient system for replacement.

At Johns Refrigeration, we’ll help you make the best decision about your new heating system with a thorough inspection and assessment from certified technicians. Call us today to learn more about heating repair service in Mesa, AZ.

Why Is My Furnace Short-Cycling?

Friday, October 24th, 2014

Most of us are familiar with the little tick sound that the furnace will make when it starts a new cycle, but if you are constantly hearing that sound, and noticing your system keeps turning on and off, you most likely have a short-cycling problem. Short-cycling can cause damage to your heating system, so it’s important to have the issue addressed right away. There can be a few reasons why your furnace is short-cycling, which is why it’s best to call for professional help. John’s Refrigeration has been helping customers in Mesa, AZ with their heating needs since 1970, so if you are experiencing issues with your furnace, call us today.

Reasons for Short-Cycling

Here are some of the reasons your furnace may be short-cycling:

Blocked Air Flow

Proper airflow is critical to the operation of your furnace. Airflow can be restricted by obstructed ductwork, a dirty air filter and/or blocked registers. To help prevent low airflow, it’s important to change your air filter regularly (approximately every 3 months), have your ductwork professionally cleaned every 3-5 years and make sure that furniture, drapes, etc., are not blocking the heat registers in your home.

Thermostat Problems

Your thermostat controls when your system cycles; should it malfunction, one of the problems that can develop is short-cycling. Common issues that can cause the thermostat to perform poorly are dirt and dust on the inside instrumentation, placement in drafty areas or poor mounting that makes the thermostat hang unevenly.

Overheating

Your furnace has a number of safety devices that will turn it off when it gets too hot. One of the reasons short cycling can occur is because the heat exchanger overheats. When this happens, the burner automatically shuts off to prevent damage to the heat exchanger.  In rare circumstances, a crack in the heat exchanger can also cause short cycling. Significant dirt and dust can also cause overheating, as a thick enough layer will act as insulation and keep heat trapped, which makes the heat exchanger too hot. No matter what the cause, overheating is a serious situation, and should be taken care of immediately.

Short-cycling can cause premature aging, wear and tear and damage to your furnace. If your heating system is short-cycling, call John’s Refrigeration today and schedule your heating service in Mesa, AZ with one of our HVAC professionals.

3 Common Heat Pump Repairs

Friday, October 17th, 2014

In terms of function, heat pumps are very similar to other heating systems. Because of their more complicated construction, however, there are a few common repairs that are unique to heat pumps. Let’s take a look at some of the common problems associated with heat pumps, and their solutions.

Heat Pump Won’t Switch Modes

One of the greatest things about heat pumps is their ability to switch between heating and cooling modes. A problem can occur, however, where a heat pump can become stuck in one mode or the other. This is caused by a broken reversing valve. Oftentimes, the solenoid that detects what mode to switch the reversing valve to can lose its magnetic charge. This makes the valve unable to operate, which causes the heat pump to become stuck.

Heat Pump Ices Over

It is not uncommon to find ice on your heat pump during especially cold days. As the outdoor coil absorbs thermal energy from the air, ice forms on the casing as a side effect. Normally, the heat pump uses a defrost cycle to melt the ice off the pump on a regular basis. If you notice that your heat pump is mostly or completely covered with ice, it means that the defrost cycle likely isn’t working. This will ultimately prevent the heat pump from gathering thermal energy from the air, which more or less means it will stop giving off heat.

Heat Pump Doesn’t Heat Enough

If your heat pump is on but not heating enough, there are a number of possible causes. The first is simply that the environment is too cold. Heat pump efficiency is directly linked to the amount of thermal energy in the air. The colder the environment, the more difficult it will be for the heat pump to reach the target heating temperature. The other possibility is that there is a leak in the refrigerant line. This will slowly drain the heat pump’s ability to deliver thermal energy and circulate heat throughout the house.

If your heat pump is acting up, call Johns Refrigeration. We conduct heating repairs throughout the Mesa, AZ area.

Common Furnace Repairs

Friday, October 10th, 2014

Furnaces are the most popular way to heat homes, and have been for more than a century. During those many decades, of course, furnace technology has advanced, and current furnaces are designed for lengthy lifespans, energy-efficient performance, safety, and reduced repair needs.

But no complex machine can ever operate 100% free from malfunctions, and as your furnace ages, it may need to have targeted repairs to keep it running. At Johns Refrigeration, it’s our job to protect your heating system, so that you have a furnace that is always prepared for the occasional cold days. When you notice anything about your furnace that is unusual, or if it starts to lag in performance, call us right away to arrange for the repairs that will get it back on track. Schedule your appointment with our Mesa, AZ heating technicians today.

Here are a few of the more common repairs that a gas furnace may need:

Replacing a Cracked Heat Exchanger

This is a crucial repair, because a cracked heat exchanger can turn hazardous. The heat exchanger is the metal compartment where the hot combustion gas collects and then transfers its heat from the metal walls to the air around it. Cracks in the exchanger, which can occur because of corrosion, may allow carbon monoxide to escape from the furnace. If you hear odd clicking noises from your furnace, it might be due to a cracked heat exchanger, so have a repair technician look into the issue right away.

Cleaning the Burner

The burner is the place where the gas jets turn on to create combustion gas. The pilot light/electronic igniter turns on the burner whenever the thermostat signals that the house needs heat. However, if dirt and grime cover the burner, it won’t be able to draw sufficient oxygen to allow the burners to activate. To clean it, HVAC technicians must first remove the burner itself. They will also look for rust flakes inside the burner that might result in low gas flow.

Replacing a Failed Electronic Igniter

Modern gas furnaces often use an electronic ignition system rather than a standing pilot light because it makes them more energy efficient. However, just as pilot lights can go out, an electronic igniter can fail, and the burner will not ignite when the thermostat signals for the furnace to come on. A repair technician will replace the failed igniter with a new one.

It is very important that you call for repairs for your furnace as soon as you detect something is wrong: gas furnaces are much safer than they once were, but they must have prompt repairs to remain that way. Also make sure that you sign up for regular maintenance in the fall to have your furnace inspected and tuned-up; this will catch any potential repair issues before they become actual issues.

Please contact Johns Refrigeration when you need repairs or maintenance for your furnace. We have helped homeowners stay comfortable since 1970.

When Should I Schedule Heating Maintenance?

Friday, October 3rd, 2014

Regular heating maintenance is incredibly important for extending the life of your heating unit. There are some times, however, when maintenance is even more beneficial than normal. Let’s take a look at some of the times when you receive the best benefits from heating maintenance.

Preventative Fall Maintenance

The best time to conduct maintenance on any system is right before it is going to be used heavily or over a prolonged period of time. In the case of heating, this means having it serviced during the fall. Most people run their heating system every single day during the winter months, which definitely qualifies as heavy usage. If you time your maintenance to occur just before winter, you can be confident that your heating system is in top condition when you need it most.

You may be tempted to wait until the start of winter itself to get your maintenance done. The reason we do not recommend that is because winter is when heating systems will start breaking down. All the preventable issues that could have been fixed in the fall will cause breakdowns. This will cause a spike in HVAC repair calls. It will generally be far less convenient to secure a service call during the winter. If your heating system breaks down, you could wait several days for a technician while having no heat in your home.

Strange Circumstances

If your heating unit starts making strange noises on startup, turns on and off too frequently, or you notice cold spots in your home, call a professional right away! Small quirks may seem innocuous, but if ignored they could develop into some big problems. You don’t want to leave an obvious malfunction alone until your yearly scheduled maintenance. Fix it right away so you don’t have to deal with your heating unit breaking down.

If you haven’t scheduled your fall maintenance yet, or you are having problems with your heating system, call Johns Refrigeration. We conduct heating maintenance throughout the entire Mesa, AZ area. Don’t wait for your heating unit to break down. Call us today.

The Benefits of Going Ductless

Monday, September 29th, 2014

If your home does not have any ducts currently installed, or if you’ve recently added a new room extension onto your ducted home, it can be difficult to find the best way to keep cool. Fans cannot actually cool a home, and portable air conditioners just don’t do the trick. Adding on ducts can be very difficult in some structures, and it takes up a lot of time and energy. But if you ask any HVAC expert about the best way to cool an entire house or room without installing ducts, they’re likely to tell you about ductless cooling.

Ductless air conditioning involves the installation of an outdoor and indoor unit, much like central air conditioners. But while central air conditioning uses a fan to distribute air through the ducts, ductless systems instead contain all of the indoor components in an air handler mounted high on the wall or ceiling. These air handlers blow cool air directly into the room, which is why most homes require multiple air handlers. However, one outdoor condenser unit can usually accommodate up to 4 indoor air handlers.

Here’s why this may be the best option for you:

  • Comfort: A ductless unit provides even cooling throughout the entire home without the need for ductwork installation. Ductless units are generally just as powerful as central AC systems. In fact, many ducted systems cannot perform as well due to leaks that commonly occur in the ducts. With a ductless unit, you won’t have to worry about air leaks, which means greater comfort and energy savings.
  • More Control: When you use ductless air conditioning to cool your entire home, you get the added benefit of zone control. Each air handler has its own thermostat, which means that you get to choose to set the temperature in any zone of the house separately from the other areas.
  • Energy Savings: Central air conditioners risk the problem of standby energy loss due to leaky ducts. Often, homeowners are paying extra to cool unoccupied spaces such as the attic or crawlspace. Ductless units eliminate this potential energy loss, and usually have very high efficiency ratings.

To schedule the installation of ductless air conditioning in Mesa, AZ, call on the experts at Johns Refrigeration today!

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Mesa, AZ 85210
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