Are there different types of HVAC units?

HVAC manufacturers have engineered several different kinds of HVAC systems that people can choose from depending on their local weather conditions and preferences. There are climates in the U.S. range from the subarctic climate in Alaska to the hot, arid conditions in the desert southwest. There are humid climates in between as well as those that are dry, from warm to cold.

The main kinds of HVAC systems include:

• Air conditioners.
• Heat pumps.
• Gas furnaces.
• Radiant heating systems.

Air Conditioners

All central air conditioners require ductwork to distribute cooled air. They include two copper coils, one that contains the chilled refrigerant and the other that removes the heat from your home that the refrigerant absorbs, called the condensing coil. They use one fan to circulate the air the evaporator coil cools and another to blow off the heat in the condensing coil that the evaporator coil absorbs.

Most air conditioners have two separate components. The indoor air handler contains the blower fan and the evaporator coil. An outdoor condenser contains the condensing coil and the compressor, which alters the refrigerant pressure and circulates it through the system.

Heat Pumps

A heat pump is nothing more than an air conditioning system that contains a reversing valve. The valve switches the flow of heat from summer to winter. During hot weather, the refrigerant absorbs the heat from the evaporator coil and sends it outside to the condensing coil. In the cold months, the process reverses. The condensing coil absorbs the heat from the outdoor air and brings it inside.

Heat pumps work well in just about every climate except Alaska and the northern tier states. They’re the most energy efficient of all HVAC systems since they can extract or supply at least three times more heat or cooling energy than they use.


Forced-air furnaces use natural gas, propane, or oil as fuels. They are the most common kind of heating system in the U.S. Like air conditioners and heat pumps, they blow heated air through the ductwork to warm the home. They’re inexpensive, easy to install, safe and relatively durable.

Radiant Systems

Radiant heating systems are the oldest ways of heating homes. They use a boiler to heat liquids that circulate through tubing placed in walls, floors or ceilings. They provide comfortable, long-lasting heat for homes in cold climates. They’re especially good for people with airborne allergies since they do not blow air.

If you’d like professional help choosing the best HVAC system for your home, contact us today at 408-295-2182.

How Do You Choose the Right Commercial Plumbing Company for Your Business?

There are a few features that set apart an excellent plumbing company from an ordinary one. When it comes to your business, you want to choose a company that you know will get the job done not only correctly but also in a speedy manner.

Since your business must be up and running for you to make money, a company that can work on a schedule is a must. Look for:

  • A company that specializes in commercial plumbing
  • A business that has experience
  • Good customer reviews
  • Upfront pricing

Find the Right Commercial Plumbing Company for Your Commercial Business

It can be a good start to find a plumbing company that specializes in commercial plumbing. This type of company will be aware of all of the different aspects that may come up with big commercial jobs and will be able to work quickly to get your company fully operational. Whether you are having problems with your commercial sinks, with a slab leak, clogged drains, or any other issues, a quality commercial plumbing can help.

Experience matters when it comes to finding the right plumbing company. It is important to find a plumber that has worked with other large businesses in the past. They will have the tools and skills needed to tackle big projects, and you can have peace of mind when hiring them that they will be able to take care of your entire plumbing project with ease.

A good reputation goes hand-in-hand with experience. You want to make certain that you hire a company that has worked well with other commercial businesses. When you see that a plumbing company has earned good ratings and has helped many other people in your community, you can feel good about hiring them to take care of your commercial plumbing needs.

Finally, find a plumbing company that offers upfront pricing. You want to have a good estimate of the costs of your plumbing services before you agree to anything. This will help you work plumbing installation, repair, or replacement services into your budget.

If you are interested in quality plumbing services, we are ready to answer any questions that you have and to schedule an appointment with you today. Go ahead and give us a call at 408-295-2182 right away to get started.

Is Residential Air Conditioning Repair Different from Commercial Repair

Residential and commercial air conditioning repair services are different in a variety of ways. It takes a company that specializes in commercial air conditioning services to handle large projects. Many residential projects involve only one unit that will cool off an entire home with ease. When it comes to commercial projects, there are often multiple units, temperature zoning, and more to address.

Things to think about when it comes to commercial air conditioning repair:

  • The size of the units must be big enough to cool off a room with many employees
  • Different zones should be set up for optimal comfort
  • It is important for everything to be done by experienced commercial technicians

Commercial Air Conditioning Must Be Done Right

When it comes to commercial air conditioning, skillful technicians must figure out how large your units should be and also how many units it will take to cool off your property. There will be many people involved in a commercial project like employees, students, or customers, so it is important to have a unit that will keep them all cool enough.

Of course, there is no need to get units that are too large or to have more units than needed because this will just use more power than necessary. A company that specializes in commercial air conditioning services will be able to make your life easy by helping you design the best system for your unique needs. Air conditioning specialists can set up different zoning areas throughout your entire building.

This will allow you to be able to change the temperature in different rooms with ease. You can personalize different spaces to make sure that everything stays at the right temperature. If certain rooms do not get used that often like storage rooms, you can save money by not having to cool them off as much as you do your main rooms.

You can count on a professional to listen to your needs and come up with a plan that will work for you. Be sure to choose a company that has experience in the commercial industry to handle your air conditioning needs. A qualified company will make sure that your commercial property is able to stay at its optimal temperature. To learn more or to schedule an appointment, give us a call today at 408-295-2182.

What Air Conditioning Services Can You Find in Santa Clara

There are many air conditioning services available in Santa Clara. It is important to find a company that can provide you with professional services that you can rely on. We are ready to discover what is wrong with your air conditioning system and to repair or replace it for you with ease.

Some Common Air Conditioning Services Include:

  • Changing filters
  • Taking care of refrigerant leaks
  • Taking care of clogged drain lines
  • Compressor problems

Quality Services When You Need Them the Most

One of the most common air conditioning problems that you may be facing is a dirty filter. Dirty filters will stop your unit from working properly and can also cause it to freeze up. Your unit may have a filter that needs to be changed every month or every few months, or you may have a unit that has filters that will need to be cleaned regularly.

By keeping your filter clean, you can enjoy having a unit that works properly and keeps your home at the perfect temperature for your needs. Refrigerant leaks are another common problem. It is important to hire a professional to find and repair the leaks so that your unit will work the way that it should. In some cases, it may be better to have your HVAC unit replaced if you are dealing with a major leak or multiple leaks. We will do what offers you the best results for the best price.

Clogged drain lines can be a big issue as well. Dust, dirt, and other contaminants can clog up your drain lines leading to problems with your air conditioning system. It is important to get assistance as soon as possible when you are dealing with this sort of problem. This is a popular service offered in the Santa Clara area. Compressor problems can also lead to serious issues with your air conditioning unit.

If your compressor is not working right, your unit will not be able to cool off your house. We are ready to take a look at your system so that it will be able to do its job properly. If you need any air conditioning service in Santa Clara, we are here to help. Call us today at 408-295-2182 for more information or to schedule an appointment.

Is It Better to Repair Or Replace Your Broken AC?

In San Jose and outlying areas, a broken air conditioning unit causes discomfort and inconvenience. Summer temperatures in this part of California occasionally exceed 90 degrees Fahrenheit. Sweltering hot weather poses a significant health and safety concern, especially for the elderly, the very young, and the infirm. Property owners frequently wonder whether they should repair or replace a malfunctioning AC?

In general, repairing broken air conditioning equipment represents a smart first choice. Taking this step usually helps customers save money. The technicians of O.C. McDonald possess extensive experience fixing a variety of different types of residential and commercial heating and air conditioning equipment. We often assist property owners in maintaining the anticipated useful lifespan of this valuable equipment by performing skilled repair services.

In order for repairs to supply an economically feasible option, the total bill for this service must remain below the cost of purchasing and installing comparable air conditioning equipment. Additionally, technicians must possess confidence the corrections they make will continue to function effectively and safely for the foreseeable future. An air conditioning system which breaks down at frequent intervals may ultimately prove costlier than the selection and installation of new, modern AC equipment.

Replacement: Sometimes A Necessary Option

Our technicians also possess the skills required to assist both residential and commercial customers by installing new AC equipment. In some situations, this course of action proves preferable because a manufacturer has gone out of business and no longer supplies suitable replacement components for an aging system. Additionally, a customer may request the installation of new technology in order to obtain enhanced energy efficiency, or for other reasons.

For instance, in some commercial and manufacturing settings, companies seek to upgrade older air conditioning units periodically in order to renovate their facilities. We honor these requests, of course. Our repair technicians possess firsthand experience with a wide variety of makes and models of air conditioning equipment. We strive to ensure the complete satisfaction of our customers.

Customers sometimes find themselves unable to decide initially whether or not to repair or replace a broken AC. They may need to obtain input from a qualified repair expert first in order to answer this question accurately. The skilled HVAC technicians at O.C. McDonald offer valuable information to help resolve this dilemma. We take pride in assisting our customers by supplying accurate, pertinent technical information. Call us today for more information at 408-295-2182.

What Are the Benefits of a Silicone Heater?

Silicone heaters are heating instruments that are most commonly used in residential and commercial projects that require smaller spaces to have direct contact with an industrial heater. Many of these spaces would be difficult to reach with mainstream heaters, but the flexibility of the silicone used to manufacture these units makes them much easier to maneuver.

Silicone heaters are constructed with either etched foil or wiring systems that can rapidly heat up to 350° Celsius, giving them adequate power to quickly heat up surfaces they come into contact with.

Resistance to Chemicals and Moisture

Silicone is considered an elastomer, and it is known to be highly resistant to many dangerous chemicals, as well as the harmful effects that moisture can have on traditional heating systems. This is due to silicone being made of durable polymers that are specifically built to have ultra resistant structures for high levels of protection. With silicone being impervious to chemicals and moisture, it is the perfect material for an effective transportable heating unit.

Temperatures Elevate at Exceptionally High Speeds

The thin construction associated with flexible silicone heaters allows the material to heat up incredibly quickly. Both etched foils and etched wires end up creating the perfect environment for a speedy conduction process. This aids in the efficiency of silicone rubber heaters, allowing them to complete projects that they are used for in record time. Since silicone is inherently heat-resistant, quickly reaching these high temperatures should pose no risk for the heating unit itself.

Easily Transported from Place to Place

On average, silicone weighs a little over 2.5 grams per cubic centimeter. This lightweight feel allows silicone heaters to be transported in a user-friendly manner. Larger heating units such as drum heaters are often big enough to hold over 50 gallons, making them quite a hassle to transfer from one work space to the next. Silicone heaters are not just lightweight, but they are also known for their flexibility which makes them much easier to store for future use.

If you find yourself in a position where a durable heater is needed for hard-to-reach spaces, a silicone rubber heater has the perfect specifications to get the job done. It is no longer necessary to haul around heavy heating units that may be too bulky to get the job done with the availability of silicone heating technology. Investing in silicone rubber heaters will give you the satisfaction of a high-performance result in a sensible amount of time. Call us today at 408-295-2182.

What are the costs to have an HVAC compressor repaired?

No matter what type of air conditioning system you have, it will eventually fail and need repair. The average A/C system has four primary parts: Compressor, condenser, expansion valve, and an evaporator. The compressor is the engine that drives your A/C system. It compresses refrigerant(freon) and circulates it throughout your system to keep your home cool. If your compressor is not functioning properly, your A/C will perform poorly or not at all.

So how does a compressor work? A compressor pushes hot gas into your outdoor condenser unit. This unit has a large fan that blows air on the condenser coils to cool the hot gas and also transfer any remaining heat into the outside air. This process provides cool air to move throughout your home. This is a complicated process that requires all major components working at an optimal level to achieve the desired results and efficiency.

Cost to Repair

The cost to repair an HVAC compressor will vary greatly depending on such factors as the type system, geographic location, and the company that performs the work. Although you may be tempted to repair the compressor yourself to save money, it is best to have it repaired by a professional because it is a complicated and potentially dangerous process. You can expect to pay between $1,000 and $2,000 to have your HVAC compressor replaced.

Some typical causes of HVAC compressor failure are listed below:

  • Failure to properly maintain the system
  • Overcurrent or overvoltage conditions
  • Excessive moisture conditions that can lead to corrosion or other negative chemical reactions

Additionally, it is important to keep your air filter replaced regularly to reduce the load on your compressor and system. If you notice your outside condenser pad starting to sink, this should be immediately corrected to prevent strain on the lines and wiring which could lead to short circuits. Also, if the pad sinks too low, the compressor could become submerged in water during heavy rainstorms. If you notice your system or compressor are noisier than normal, it should be promptly inspected by a professional. This could possibly save you thousands by correcting minor problems before they become major problems.

If your A/C system requires maintenance or repair, call us today at 408-295-2182.

What Should You Look For In Your Santa Clara HVAC Installation Contractor?

It’s every entrepreneur’s dream to create a thriving business catalyzed by a cool and productive workplace. Not only does such a unique environment promote interactive and innovative discussions but also serves as an exceptional setting to like-minded entrepreneurs. With fluctuating temperatures in Santa Clara, it makes total sense installing a new heating and ventilation unit or better yet, making prompt arrangements to replace your defective model with a new one. Before dipping into your pockets and parting with your hard-earned money, here are a few pointers that you need to consider.

What to Look For In an HVAC Installation Contractor

Licensing and Vast Experience

The best HVAC units are widely considered to command hefty prices and the benefits of hiring a seasoned expert to execute this task cannot be stressed enough. Before any potential individual is authorized to engage in HVAC installation in Santa Clara, they must be licensed and possess ample experience as a testament to their expertise. As the business owner, you need to ascertain your expert’s experience by inquiring about past projects conducted with precision. While being in the business for a substantial duration doesn’t necessarily serve as a guarantee for an exceptional job, it definitely plays an essential role in instilling stability and confidence in their capacity to deliver unmatched results.

As the business owner, you might want to go an extra mile by ensuring that they are certified by relevant institutions preferably the North American Technician Excellence (NATE) to ascertain their competence and credentials to completing the project with finesse. Not only that, you need to understand the existence of a multitude of experts in the industry with diverse skills. However, it’s advisable to ensure that your contractor is well versed with air balancing and precise handling of refrigerants.


Seeking referrals has consistently offered benefits commonly unknown to novice entrepreneurs. To obtain optimal value in return, you need to ask for referrals and references from past clients, call them up and inquire about the contractor’s performance. Remember, ideal contractors have developed an unrivaled reputation for performing a clean installation as a reflection of their expertise and to maintain hygiene at a client’s property.

Rebates and Special Offers

Making informed inquiries about rebates and additional offers is widely considered to be a hallmark of shrewd entrepreneurs. Since HVAC installation can be a costly project based on the brand purchased and the contractor’s fee, it makes total sense inquiring about energy-efficient models and discounts on specific purchases designed to make your shopping and installation process much easier than before.

O.C. McDonald in Brief

At O.C. McDonald, we have consistently gone above and beyond to develop high-quality and efficient HVAC units for residential and commercial buildings. Our broad experience spans across sheet metal fabrication to gas fitting. Don’t hesitate to contact us today at 408-295-2182 and let us help you install an ideal HVAC unit guaranteed to provide unmatched cooling comfort at your workplace.

What Paperwork Do You Need to File for New Construction in San Jose

When it comes to new construction in San Jose, you want to be certain that you have filed all of the paperwork necessary before you get started. By hiring a professional contractor, you can have peace of mind that everything will be done the right way so that you do not have any problems in the future. The right paperwork will help get your project started and completed as quickly as possible.

Permits are always important. Before the construction process begins, you will need to have the right permits that will allow you to safely and efficiently start your project. When you work with a contractor, they will make certain that everything is taken care of. Electrical permits and building permits must be turned in so that the work will be done the right way. You may also need grading permits, plumbing permits, mechanical permits, landscaping permits, demolition permits, and possibly even sign permits.

Find a Contractor who Will be able to:

  • Listen to your needs
  • Have experience in this industry so that he or she knows what permits are necessary
  • Will be able to file the proper paperwork so that the building process is completed in a timely manner

The Right Paperwork Must be Filed Before the Construction Process is Started

A qualified contractor will be able to take care of all of the licensing and permit applications. It is important for them to have building and floor plans and other specific construction plans so that they can show this when they file the paperwork. Our qualified team will know exactly what to have to make sure that all of the paperwork goes through.

It is important to know the location of the project as well as the legal description of the property. The property owner’s information and the contractor’s information and license number will need to be given. Once the paperwork has been filed, the approval process can get started. There will be many different departments that need to look at the permits, but if everything is filed properly, the process should go smoothly.

If you are ready to get started, we can help. Our team of professionals know what papers to file and what information is needed to get the construction process started. If you are interested in learning more or want to set up an appointment with us, give us a call at 408-295-2182.

What qualifications should a San Jose contractor have to install an HVAC system?

If you are interested in hiring a San Jose contractor to install your HVAC system, it is important to hire a qualified company. You will need to hire a licensed air conditioning and refrigeration contractor for your state. By making sure that your potential contractor has the right licenses, you can have peace of mind that they will be able to do the job right.

There are many things to look for in a qualified HVAC contractor such as:
. Licenses
. Experience
. Certificates
. Reputation
. Proper tools and equipment
. Can meet deadlines

Along with the proper licenses, you should also hire a company that has experience. Find out how long the potential company has been in business so that you will know that they are knowledgeable in this field.

A qualified contractor will also have the right certificates needed to be able to install a HVAC system. There are environmental certificates as well as training certificates that your contractor should be able to show you.

Find Qualified Professionals for your HVAC Needs

The reputation of a company matters, so do some research before you hire anyone. Look for past customer reviews so that you can see how the company did on jobs that are similar to yours. By hiring a trusted and qualified HVAC professional, you can be certain that your system will be installed the right way. You can avoid many problems in the future by having your system installed by professionals.

A good company should have the right tools and equipment needed to do the job. You should be able to relax while professional HVAC technicians take care of everything.

Find a company that is ready to get started on your project right away. A qualified company should be able to meet deadlines and do what it takes to make certain that your HVAC installation will be done on schedule. Whether you are having a single unit installed or need a HVAC installation for a large facility or commercial property, it is important to hire a company that can work in a timely manner.

Give us a call if you want to learn more about our qualified HVAC technicians. We can schedule you an appointment and answer any questions you may have. Just give us a call now at 408-295-2182 to talk with someone who can help you today.