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The Importance of Ventilation in HVAC

The Importance of Ventilation in HVAC

ventilationWhen researching a variety of topics on behalf of your St Louis Heating Sales and Installation near St Charles, we ran across several in pursuit of more knowledge on the ventilation portion of the HVAC system.  As a result, we have decided to further discuss it here.  “The purpose of mechanical heating, ventilation, and air conditioning (HVAC) systems is to provide air at comfortable temperature and humidity levels, clear of harmful pollutants such as mold, mildew, and other bacteria. Although heating and air conditioning systems are relatively standard operations, complex ventilation processes can often determine the quality of our indoor air.”

Once upon a time, ventilation was simply open windows, adding a fan would increase your ventilation’s effectiveness, but fell short in many heating and cooling scenarios, nonetheless.  In today’s day and age, modern buildings typically use a combination of mechanical ventilation processes, resulting in the supply and removal of air from inside a building or home. “Ventilation processes bring in the air from outside, condition and mix the outdoor air with a portion of the indoor air, distribute the mixed air throughout your home or building, and send a portion of the indoor air back outside.

It is our experience in the St Louis Heating Repair near St Charles that when one or more of these ventilation processes fails, indoor air quality can and will deteriorate. For this reason, your ventilation is one of the most important aspects to Heating and Cooling near St Charles MO.  “Proper design, operation, and maintenance of the ventilation system is critical to providing indoor air that is free of harmful pollutants.”  Whole HVAC systems in place in your St Charles home can also be large contributors to issues with indoor air quality, so should be properly maintained every year as well.  Your St Louis Heating Maintenance near St Charles offers these services to those in your area.

Upgrading HVAC Systems in Commercial Buildings

Upgrading HVAC Systems in Commercial Buildings

commercial HVAC installation in MOThere are many reasons to consider upgrading commercial HVAC systems in St. Louis, such as; improving environmentally friendly features, more comfort for occupants in commercial spaces, and enhanced efficiency of HVAC systems.  There is no reason to wait until your current system completely fails before considering upgrading to newer and better technology.

Even new systems need to be tweaked in order to continue to offer the ultimate energy efficient heating and cooling systems.  Once a new HVAC system is installed, continuous energy audits need to be performed in order to expect peak performance from the new system and to thoroughly understand your building’s performance.

The benefits of having maintenance staff conduct frequent monitoring of new HVAC systems on regular bases are many.  Some of the benefits include; reduced energy expended in an environmentally safe process, and primarily a reduction of overall energy costs for businesses.  With just a little bit of implementation planning and good communication, commercial building owners and facility managers can exceed expectations during HVAC upgrade operations.

Regardless of the HVAC system or methodology used, building owners or facility managers can exceed expectations during HVAC upgrades, with a bit of planning, an implementation plan, and open communication with the contractor.

There are many new alternatives to traditional heating and air conditioning systems for commercial buildings today such as passive radiant cooling and heating systems.  Both are comfortable, quiet, low cost systems that are designed to operate during off -peak electric power intervals, reducing the need for intensive HVAC heating and cooling during the day.   .
Radiant cooling will get rid of ups and downs in temperature which is common in HVAC systems.

Contact us today at American Services to find out more about new efficient commercial  HVAC systems in Missouri.

Poor Air Quality is an Important Concern in HVAC Systems

Poor Air Quality is an Important Concern in HVAC Systems

Commercial HVAC systems in MOThere are many things that people can do to help ensure that the air quality of their commercial space is as healthy as possible. Many structures are built without regard for the fact that often indoor air can easily be worse than the air outside. Chemical cleaners and products along with machinery and appliances can all contribute to contaminants in the air that workers and possibly customers are exposed to.

People with asthma or allergies can be highly affected by moldy, stale, stuffy environments. Furthermore, it isn’t good for those without these health concerns either, especially for those who have to spend a lot of time living or working in bad air. Faulty heating or air-conditioning is yet another source of the problem. Equipment damage is something that has to be accounted for when tying to provide clean fresh air to spaces. The presence of molds and excess humidity are also concerns that must be eliminated to keep the air healthy.

Depending on what concern you have and are trying to fix, there are plenty of steps that can be taken to correct poor air quality. Ventilation upgrades can be one solution, so can purchasing new or repairing old heating and air-conditioning units. Cleaning or replacing older building infrastructure can also help.  Deteriorating pipe insulation, fire retardant, old ceiling tiles, lead-based paint dust, the list of potential issues goes on and on.

Additional potential solutions for bad air quality in HVAC systems are minimizing or eliminating sources of moisture to decrease the capacity for mold and mildew growth. Using a quality dehumidifier might be necessary. Natural or mechanical air circulation aids may be in order as well. For professional help with upgrades and problem solving concerning commercial HVAC systems near Webster Groves, American Services can provide answers and assistance.



Industrial Heating for Apartment Complexes

Industrial Heating for Apartment Complexes

heating service for schools in MOAmerican Services heating service near Sunset Hills knows that heating an apartment complex can be an expensive and daunting task.  Depending on the location and climate, a heat pump might be a viable option.

A heat pump can be used as a part of an HVAC solution, which can save users money and lessen their potential environmental impact.  A heat pump serves as a transfer device that takes heat energy from a source and transfers it to a heat sink.  One way to think about it is looking at a computer that uses a fan to distribute air and a heat sink, which is a corrugated piece of metal, that absorbs the heat to keep the inside of the computer cool.  The principle behind a heat pump is similar except that the heat can be utilized to keep occupants warm.

Heat pumps come in a wide range of configurations.  The heat pumps can gather heat from air/water, rock, surface soil, or standing bodies of water.  Some heat pumps can also capture excess heat waste, like heat that comes out of exhaust vents or heat produced by a machine, such as a dryer.  This recapturing of waste heat is something that can be done easily and has the potential to save users hundreds or even thousands of dollars.

Heat pumps have been popular in Europe for some time and are gaining popularity state side.  Geothermal heat pumps offer the best of both worlds because they can maintain a constant temperature in a building no matter the temperature outside.  Air/water heat pumps are dependent on warm air to keep a consistent ambient temperature so they might not be applicable to all climates.

Heat pumps can be an option to help reduce costs and limit the CO2 that is pushed out into the environment.  So if you  are looking for an environmentally friendly solution that is also cost effective, then a heat pump could be just the option you need.

Package Terminal Air Conditioner

Package Terminal Air Conditioner

hvac cooling in MOA packaged terminal air conditioner, also known as PTAC units, is a type of self-contained heating and air conditioning system commonly found in hotels and apartment buildings. These systems are designed to go through a wall, having vents and heat sinks both inside and outside. Typically these systems will come in standard sizes.

PTAC units are designed as a heating (and cooling) system ideal for single living spaces. The PTAC units are designed to use only electricity, which make them ideal for commercial offices or hotels. The heating capacity will typically range from 2 to 5.5 kilowatts nominal. The PTAC units have several unique characteristics which make them ideal for operations which have many small rooms. The condensate drain piping which is found on pretty much all heating units is not required because the condensate water extracted from the air by the evaporator coil is drawn by the condenser fan onto the condenser coil surface where it evaporates. This eliminates the need for unattractive or expensive drainage systems connected to PTAC units. However, conventional PTACs that utilize older technology may still require the drain piping.

Sizing a PTAC unit can be done quickly and easily with sizing charts provided by manufacturers. A room of 150 square feet will utilize a 5,000 BTU sized unit and a 1600 square foot room will need a 32,000 BTU unit. The typical rule of thumb is that you need about 25 BTUs for every square foot of area. However, it is always good to contact the manufacturer or a technician and get an energy audit to determine the specifics.

For all of your HVAC cooling  repair needs in St. Louis, contact American Services today, you won’t be disappointed!

HVAC System Efficiency in Commercial Buildings

HVAC System Efficiency in Commercial Buildings

heating service in MOAmerican Services HVAC heating and cooling repair in St. Louis knows that energy use for heating and air conditioning accounts for more than 25% of the primary energy consumed in commercial buildings in the United States.

Of the 59 billion square feet of total commercial floor space, about 82% is heated and 61% is cooled. Over the last 35 years, HVAC energy consumption has been a target for potential savings. Over the years, new technologies and a dedication to energy efficiency has allowed for a substantial decrease in energy consumption of commercial buildings. For example, a centrifugal chiller has increased 34% in efficiency over the last 20 years.

It is not just building operators that have been a key player in these energy consumption statistics. The general market, manufacturers, contractors, engineers, utility companies, and government organizations have all contributed to this positive growth. However, although there have been great strides in energy consumption reduction, there is still significant opportunity to reduce energy consumption further.

No matter what level of involvement you have with HVAC, whether direct or indirect, having a basic knowledge of system operation and new technologies can lead to tremendous energy savings. In any business, having a more efficient system calculates to substantial cost savings. A good first step is to contact a local HVAC specialist and schedule an facility audit. The specialist will methodically analyze and assess your operation so that he or she can make recommendations as to the best possible solutions for your application. Typically, these specialists will work with building engineers and manufacturing facilities to ensure that the recommendations are in line with the processes of the various systems in your operation.

For a quote on HVAC services contact American Services today.

HVAC Fan Types

HVAC Fan Types

hvac fan in MOAccording to current research, more than 25 percent of the energy consumed in commercial buildings is used for heating and air-conditioning. Within that 25 percent, anywhere from 20 to 60 percent is consumed by the HVAC fans and pumps that transfer heated and cooled air or water from central heating and cooling plants to the various locations. Supply and exhaust HVAC fans will typically operate continuously while the building is occupied.

There are two basic types of HVAC fans: axial and centrifugal. Axial-flow HVAC fans are the stereotypical propeller-type fans much like an oscillating floor fan that is placed in your home. In many instances, axial fans are directly connected to the motor controlling them which avoids energy loss through belt drives. Typically there will be a central hub where the motor fits behind the fan increasing efficiency. Weight distribution within the fan blades further increases efficiency and allows for a low starting torque.

Centrifugal fans are quite a bit different than axial fans. Instead of air passing straight through, the air makes a 90-degree-angle turn as it travels from the inlet to the outlet. This causes the air to be “thrown” from the blade tips. Centrifugal fans have more mass farther from the axle, which requires it to have a higher starting torque. The benefit is that centrifugal fans are quieter than axial fans.

Within both HVAC fan types there are several sub-categories of options whether you are looking for higher volume of air, increased suction, twisting air, higher efficiency designs, ability to pass foreign objects, and cost advantages.

To schedule HVAC installation or repair service near Overland, contact us today at American Services in Saint Louis, you won’t be disappointed!

Alternative Industrial Space Heating

Alternative Industrial Space Heating

commercial heating in MOAmerican Services commercial heating installation in South County knows that with reducing high energy costs being a primary motivator today, many companies are considering alternative industrial  heating options.

Providing employees and customers with good quality heating and cooling services can be a challenge today energy expenses continuously on the rise. Companies must focus on eliminating and saving energy costs whenever possible. With so many alternative heating options available, pre-planning and selecting the alternative heating systems best suited for commercial installation needs is very important.

Primary consideration should be given to the comfort of customers and employees, efficiency of the new heating system, and dropping energy cost levels.

Many companies rent or lease the space or installation they operate in. This scenario often stops companies from taking action to lower energy bills, as they feel upgrading heating and air conditioning systems not their responsibility, yet they continue paying the excessive energy costs on a monthly basis. Coordination and planning between owner and user to implement industrial space heating systems will create a large pay back to the owner and users guaranteeing long term benefits for all.

Space heating is generally thought of as an expense source of energy in the industrial setting. When considering upgrade or replacement installations, an energy efficient system will save you costs and show up in your profit margin.

Programmable thermostats are a common alternative industrial space heating option. Hardly a new system, it can still substantially help to lower energy costs, reducing heat levels when the building is empty.  The thermostat can be programmed to reduce settings during off hours and weekends. In short, to improve your bottom line, keep a close eye on your energy usage.

Questions to ask HVAC Contactors Part I

Questions to ask HVAC Contactors Part I

Commercial HVAC Installation in MOAmerican Services HVAC installation in Wentzville knows there are many HVAC contractors operating out there today-some certified, some not. Installing a commercial HVAC system is an expensive undertaking and it won’t due to hire a non-certified mechanic.  Be sure to educate yourself about the installation and all the components associated with the HVAC system. It will prepare you to ask smart questions and find the best contractor suited for your installation.

1. Does the company hold a heating and air conditioning license?
State licensing is the minimum requirement to operate a heating and air conditioning company. Licensing protects the public, and your business. Unlicensed companies which are operating out there with no restrictions are unaccountable to regulators and often unavailable if things go wrong. Ask for a “license number”! It is the first step indicating you’re dealing with a reputable company.

2. Does the company employ NATE certified technicians?  NATE stands for the North American Technician Excellence Program. It represents the heating and air conditioning industry certification body for technical knowledge. NATE certified technicians are the best trained and highest quality service installation providers in the industry today.

3. Is the company insured? General liability insurance protects you. Most companies will be insured but not all are, Don’t Take the Risk! Ask about insurance, companies that do not carry these two fundamental insurance policies are a danger to do business with.

4. How long has the company been in business (under the same name)?
On average 1 in every 5 heating and cooling companies goes out of business every year. The best way to predict whether a company will be around long enough to honor its warranty promise to you is whether the company has a long history. Most reputable companies are more than willing to report their business tenure.

Hydronic Heating Systems

Hydronic Heating Systems

heating service in MOAmerican Services heating installation in St. Louis knows that hydronic heating systems, better known as forced hot water heating, are widely used in commercial installation structures today. These heating systems use water as a means of conveying and transmitting the heat to all locations in the structure that require heat. Hydonic systems are based either on gravity flow or forced circulation.

The source used to heat the water may include natural gas, oil, electricity or solid fuel. Basically the system works like this; the water is heated in a boiler or water heater, and then pushed through pipes to convectors or radiators located throughout the structure.

With the use of a centrally located thermostat temperature can be controlled throughout your structure rooms. When the thermostat calls for heat the boiler heats the water and sends it to the room convectors or radiant heating panels where it is released and distributed in the room by natural convection.

In a larger commercial building heat systems are supplied with individual thermostats that control temperature in each zone.

Advantages of Hydronic heating systems include:
– Easy zoning.
– Quite operation and comfortable humidity levels.
– Energy efficient.
– Hot water heating system that provides uniform and comfortable heat without problems of air     pockets or air stratification.
– Hot water heating system that is more flexible than low pressure steam systems.

Disadvantages of hydronic heating systems:
– Condensation in some hydraulic cooling systems.
– Possibility of stagnant air caused by lack of ventilation.
– Baseboard convectors may interfere with furniture placement.
– Slower heat response.

To learn more about hydronic heating, or any other type of HVAC, or heating and air conditioning system, be sure to contact American Services located in St. Louis MO today.