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Economical Performance: Customer-Centered Serivces

Over my fifty years of service to customers, the traditional corporate business model has served to enrich the wealth of stockholders, often at the expense of the corporations’ customers. Such a business model rewards salespersons who sell products and services then rewards project managers to not deliver what the sales force sold. Salespeople are paid to sell against quotas and the managers are incentivized to hold down overhead and raw costs.

In my last corporate role of corporate account executive, I worked to meet the goals set for me and my sales team AND I worked to assure the satisfaction of our customers. To my disadvantage, I couldn’t fire branch office personnel. All too often customers would call to report dissatisfaction with one or more aspects of the delivered sale. So it was I began to imagine how things could be different if I were in charge of everything from the initial sale to sign-off. When I started my business three decades ago, my focus was not on project profitability, but on customer satisfaction.

Participation in major design-build performance contracts over many years firmly established the business focus for Rockwall Controls Company, Inc.

We rarely, perhaps only once over two to three years, participate in street work based on low price. Instead, we provide customized solutions that economically resolve problems while also introducing significant monetary benefits to the customer. I give two examples.

Example 1 – A five-story courthouse featured a high-pressure dual-duct air handling and distribution HVAC system. There were continuous comfort complaints. Originally this system had pneumatic thermostats that were replaced with a simple DDC system that replaced those pneumatic thermostats with voltage-to-pressure transducers.

Two tandem Joy vane axial fans powered the cold duct while a single fan powered the hot duct. Two joy vane axial fans served as common return fans. Electric heaters on the discharge of the dual duct terminal boxes were the source of heat. This system had an air-side economizer.

Structurally, the old building was as porous as a sieve.

Our remedy was to convert dual duct terminals to variable-volume and to add isolation butterfly dampers to the vane axial fans. Fan tracking based on actual system air flow resolved most of the infiltration/exfiltration problems. An intelligent air-side economizer and elimination of all pneumatics did the rest.

Results? Practically all occupant complaints ended and actual annual kiloWatt-hours energy consumption was cut in half.

Example 2 – A hospital for which HVAC maintenance was neglectful for ten years was approaching a point of total HVAC failure. Antiquated and disparate controls left the new facilities manager in the dark.

Phase 1 addressed central plant operation. Remedies to central plant operation produced annual savings from reduced gas, water, and electricity for a quick payback.

Phase 2 integrated systems of two manufacturers that were installed over several years, giving a window onto the other needs of this hospital.

Phase 3 is pending, but when implemented will dramatically improve overall HVAC systems performance and cost of operations.

Our smart operator interface greatly relieved the facilities management team of stress. How so? We installed our own internet service, wholly independent of the hospital’s IT infrastructure. This measure empowers hospital staff to use our SmartPhone app on-site and away, all without compromising hospital IT security.

What do the two examples share in common? They are self-funding projects; our implementations are designed to pay for themselves.

The Bottom Line

Our customers enjoy energy savings along with greatly improved performance and these projects pay for themselves.

What Are Your Needs?

How can we serve you?

John White
Rockwall Controls Company, Inc.
Rockwall Broad Energy, LLC
(972) 771-3514

There is a body of thought that we can run America on #RenewableEnergy

There is a body of thought that we can run America on Renewable Energy.

There is a body of thought that we can run America on Renewable Energy.

There is a body of thought that we can run America on #RenewableEnergy.
First of all, let’s clarify the meaning of renewable. One of my dictionaries defines renew, “to restore to a former state esp. so as to be used again”.
While true, this present administration produces a lot of hot air, the immutable laws of physics remain unchanged. The president cannot now, nor will he ever be, capable of changing the natural laws of nature with his phone and his pen.
Any suggestion that wind – air in motion – is ‘renewable’, meaning we the humanoids of earth, can turn it on and off at will, is the zenith of foolishness.
Yesterday, my wife and I visited our grandson who studies at a west Texas university. Our drive takes us through miles of giant windmills. For the record, approximately 1/2 were in operation.
Is it possible for windmills to generate commercial electricity? Most certainly. Is it possible for windmills to generate RELIABLE commercial electricity? Let’s answer this second question with a third: Can ERCOT (the ‘mafia’ that controls the Texas grid) command the wind to blow?
Last August of 2016, ERCOT peak demand surpassed 71,000 megaWatts for the first time ever.
If all the carbon-based power plants were to be shuttered tomorrow AND there were enough operational windmills online to supply the demand for power, what else could we possibly need? Answer: something RELIABLE, something we can turn on and turn off, something like cheap Texas coal and cheap Texas natural gas.
Do windmills perform? Are they viable sources of electrical energy? Yes and yes. However, unlike natural gas-fired and coal-fired power plants, you the taxpayer funds the installations of windmills and the construction of multi-billion-dollar transmission lines that connect the over 10,000 wind turbines into our grid.
West Texas wind is gusty and unreliable. In fact, it’s during the daytime and summertime that we hit our peak demand, but the windmills just aren’t able to provide power when we need it most.
Construction of windmills along the Texas Gulf Coast overcomes the problem of west Texas fickle winds, but there are other issues.
One issue: Ecological harm to birds and bats. Windmills are the only lawful means for killing game birds, vital insect-devouring bats, and even the eagle.
Another issue is noise. Ask people who live near wind farms.
A third issue is the reliability of wind power. What do we need when we have over 18,000 megaWatts of wind power? We need something reliable.
Only a free market serves the broad interests of our fellow Texans. I say let the windmill business go forward but put them on a level playing field with coal-fired, gas-fired and nuclear power plants.
John White
Rockwall Controls Company, Inc.

Three Perils to Facilities – Lightning, EMP, and Solar Storms

NASA warns – History will repeat itself. “Electrical surges due to a solar storm shocked telegraph operators in 1859; today, they could wreak havoc on power grids and electronics.” Science Magazine
There are three natural threats to our power systems and electronic systems so vital to our way of life. Starting from the least to the most perilous: lightning, solar storms, and nuclear bombs bursting high in the atmosphere. Are you protected against even one?
The danger from solar storms is the heating effect on our atmosphere. When heated, the atmosphere expands, as heated air does in a hot-air balloon. Read the article to understand how an expanded atmosphere affects satellite communications.
Lightning strikes the earth 100 times per second, almost 8,000,000 per year.
To date, there have been no detonations of nuclear bombs in time of war, but experts warn the probability of such a strike by rogue nations like Iran increases day by day.
Both lightning and nuclear air bursts produce electromagnetic pulses (EMP) and intense electrostatic fields can affect electrical and electronic systems, the damage a function of the intensity of the EMP.
Scientists say we have 15 to 20 minutes warning, in the case of a solar storm. Weather forecasts generally warn us in advance with enough time to activate planned defenses. But, there will be only a few minutes warning before either a nuclear air burst or a solar flare happens.
Perhaps one of our consultants can review your facility.
Make an appointment today. Peace of mind can comfort you. Leaving your facility in one piece – even better.
John White
Rockwall Controls Company, Inc.
(972) 771-3514
Rockwall Broad Energy, LLC
(214) 810-7314

Plan-Spec vs Design-Build


Why does Rockwall not participate in the plan-spec market? Contrary to conventional wisdom “all things being equal, john-ruskin-low-pricelow price is the best buy” this is rarely true.

Understanding the plan-spec form, particularly where building automation and controls are at play, will determine the outcome of your project.

As a former corporate account executive for the former Barber-Colman Company in Rockford, Illinois, I know how the system works. Typically, the MEP engineer knows what fluids go. And, they generally know how to correctly design plumbing, HVAC, and electrical subsystems needed to fulfill the mission of the building.

Along the way, sales representatives from various manufacturers provide “guide specifications” to assure those mechanical, electrical and plumbing systems function as desired by the owner. The weakness is this: the reason sales people willingly provide those “guide specifications” is to create a favorable opportunity for the manufacturer or service provider to have the lowest price and the highest profit. This isn’t always a bad thing for the owner. All too often it is.

economics-vs-technical-solutions-balanceRockwall Controls is a design-build company providing custom-designed controls systems,  consulting services, systems integration.

Our method is to develop solutions that fulfill the primary mission of a particular building system while also building in energy efficiencies. We know that regardless the problem-solving solution we propose if it is not economical, it will not happen.

Over the last thirty years of business, Rockwall has provided systems commissioning. We ‘optimize’ existing systems. The economic benefits of re-using assets for which capital has been expended, adding equipment as necessary to optimize a system can be substantial.

Is your building system a true automation system or is it a manualmation system? Need help? We can do.

Our choice of Technology is Honeywell

Our choice of Technology is Honeywell


John White
Rockwall Controls Company, Inc.
(972) 771-3514

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Choosing a Solution: Hammer & Nail or Engineering Approach?

Abraham Maslow was a psychologist who loved people. Mr. Maslow focused on what made people happy and he understood that human nature seeks to simplify complex needs to some simple singularity.

We love our customers. Because we love our customers, we fastidiously research the means by which we can please them through the application of durable, cost-effective and practical engineered solutions.

While you may be unfamiliar with the work of Abraham Maslow, you have probably heard his observation on hammers and nails.

I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.” – Abraham Maslow

What you are about to read isn’t intended to discredit skilled air conditioning mechanics and technicians. Rather, the objective of this paper is to differentiate between two worldviews on problem-solving.

Engineering Approach or Hammer-and-Nail Solution?

When it comes to solving problems, craftsmen tend to rely on skills which, in turn, are the products of experience. Those high-value skills are not to be either minimized or dismissed. The point is the solution. It is at this point where Rockwall Controls Company, Inc. and Rockwall Broad Energy, LLC differentiate between the Hammer-and-Nail solution of mechanics and our engineering approach to problem-solving.

What is the chief difference between an engineering solution and the hammer-and-nail approach? The latter rests on past experiences; the engineering solution makes no assumptions, based on past experiences.

Rockwall Controls Company, Inc. and Rockwall Broad Energy, LLC, instead rely on empirical data, measurements with sophisticated instruments and proven engineering principles. Our scientific approach to problem-solving entails empirical measurements, ASHRAE standards, and reliable predictions.

At the end of the day, either method provides a solution to your HVAC problem. Which would you prefer? The hammer-and-nail or the scientific method.?

Here’s a true to life story about one customer who elected the hammer-and-nail approach of a mechanical service company over our scientific approach.

Problem: Condensate floods the mechanical room floor

Solution from first mechanical service company: Cut a trench into the concrete to draw condensate to a floor drain.

Solution from second mechanical service company: Resolve “negative suction” on the condensate drain line.

Our findings? The air handling unit in question was designed for 40,000 cfm. Our study revealed the unit flowing 53,000 cfm. Condensate had escaped the drip pan so long that mineral “stalagmites” formed on the deck of the unit. There were other issues:

  • Phase imbalance on two motors
  • An unreliable digital controller that could not be fine tuned to improve performance. This same controller tended to lock up when transient voltages passed through the structure.
  • Poor humidity control due to overspeeding fan
  • Poor indoor air quality control due to infiltration into the mechanical room. An IAQ sensor in the return-air stream at the unit was not effective in the management of ventilation.

Our solution?

  • Apply variable-frequency drives (VFD) to supply and return fan motors, thereby reducing unit air flow rate, correcting power factor and phase imbalance and providing soft-start that adds life to any machinery.
  • Replace the fixed application proprietary controller with an open-systems Honeywell programmable controller.
  • Install a multi-variable sensor within the conditioned space at average head height. Measured values of temperature, relative humidity and carbon dioxide concentration are raw data used by the new programmable controller to optimize comfort at the lowest possible cost.

Have you a problem with your building? We can help. You will be happy with the results.

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Fishing for Business – Specific Advice to Churches

Almost three decades ago I started my business in Rockwall. My first office rental was with C&F Electrical Company, the building now home to ProSoap, Inc.

Wayne Fields, principal of C&F Electrical and I were fellow church members. My business was so new I had not yet purchased business cards. fish symbolWayne cautiously asked, “Are you going to put one of those fish on your card?” After my negative response, Wayne expressed his relief, relating how business owners who tout their Christianity on business cards are the ones most likely to be problematical. I listened. I took heed. Not once have I suggested a prospective client do business with me on the basis of my Christianity.

Over three decades of business ownership, my experience agrees with Wayne’s. In recent time, a company openly promoting itself as a benefactor to missions underscored for me the vital importance of differentiating between someone’s religious self-promotion and their particular skill set, honesty and integrity.

When I select my various medical professionals, I inquire about expertise, not religious affiliations. At my age, I don’t have time to experimentally discover who is and who isn’t a good physician, who can and who cannot.

Likewise, my mechanics, tire service company, lawn service and other resources: track record and referrals are everything to me. Building one’s business on referrals depends on honesty and integrity, about these two character qualities, Steven Covey wrote in his book The Seven Habits of Highly Successful People:

“Honesty is telling the truth—in other words, conforming our words to reality. Integrity is conforming reality to our words—in other words, keeping promises and fulfilling expectations. This requires an integrated character, a oneness, primarily with self but also with life”

To be honest is to be truthful about past performance; to be a person or company of integrity is to fulfill or exceed customer expectations. An exercise I use is to ask myself, “What would my performance look like in a court of law?

Can one rely on the salesman or business owner whose assurance of honesty and integrity lies with pious claims, a ‘fish’ on a business card? I wish it were so, but it’s not. By virtue of the ‘fish’ symbol on the business card or on a marquee, that symbol alone is no assurance of qualifications or integrity.

Of all customers whose paths I cross, church leadership is probably the most gullible, the most susceptible to ‘fishers of business’.

Is my perspective Biblical? Let’s walk through the Bible to see if it is.

  • First stop: Acts 5:1-11 where we read about two Christians, Ananias and his wife Sapphira. For a season, they had front-row seats, but their outcome was very unpleasant. Ananias and Sapphira were “fishing” for reputation, possibly to advance their real estate business.
  • Second: Acts 8:9-24 Where we learn about Simon Magus, aka Simon the Sorcerer, aka Simon the Magician, a Samaritan religious leader who was baptized by Philip the Evangelist. He seemed to act the part, but after Simon saw how the laying on of hands imparted great power, he wanted to get in on this amazing deal and offered to buy it from Peter and John. Well, that didn’t happen. Peter and John knew in an instant Simon was “fishing” for business.
  • Third stop: 1 Corinthians 5:11. The Church at Corinth was very much like just about any neighborhood church today. Its congregation ranged from truly righteous disciples of Jesus Christ to sexual perverts. Contemporary liberal churches that welcome homosexual ‘marriages’ as acceptable come to mind. The Apostle Paul admonished his Corinthian converts to avoid fellowship with fornicators, covetous (greedy), idolaters, railers, drunkards, or extortioners – “with such an one no not to eat“.

Evangelist Keith Green, prolific song singer-writer, fellow Texan, penned these words in his song The Sheep and The Goats that address the issues of honesty and integrity. (Scripture reference Matthew 25:31-46 NLT)

And my friends, the only difference between the sheep
And the goats, according to this scripture
Is what they did and didn’t do

Keith said the most important word in the Bible is the word do.

That fish is no substitute for what the business “did or didn’t do“.

John White
Rockwall Controls Company, Inc.
972.771.3514  office

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Metrics Separate Energy Savings Facts from Energy Savings Fiction

Illuminating Lighting Retrofits

In commercial buildings lighting typically consumes 26% and HVAC 23%, roughly half of all energy.

Lighting retrofits we call “low hanging fruit”. This is the least technical, least costly retrofit to gain immediate energy savings. HVAC energy savings are more capital-intensive, more complex and have a lower pay back time.

So, how do we begin? Should we start with a lighting retrofit campaign? Yes and no. Allow this real life story to explain.

An owner of a vary substantial residence in Rockwall County, Texas requested a proposal to reduce electrical consumption of his home. One item that caught my immediate attention was finding of 96 100-Watt incandescent flood lights installed in recessed lighting fixtures. 96 lamps X 100 Watts = 9,600 Watts. Is this not an obvious candidate for a lighting retrofit? Although it appeared so, it was not. Why? The owner never uses them.

We can’t predict energy and dollar savings simply from nameplate wattage. First of all, you pay on consumption, kilowatt-hours, not kilowatts. According to my best calculator, zero times anything comes up zero.

Metrics are key to energy conservation decision making. Let’s apply a rate of $0.087/kilowatt-hour to the above home with those 96 100-Watt lamps.

Assume all 100-Watt lamps were to operate 24 hours per day.

9,600 Watts X 24 hours = 230.4 kWh (kilowatt-hours). At a cost of 8.7 cents per kWh, daily operating cost would be 230.4 kWh X $0.087 = $20.05. If run 30 days, total cost of operation would be $601.34. Do this for one solid year: $7,318.25.

The preceding exercise was an unrealistic evaluation of energy consumption. The point of the exercise is to demonstrate how you can accurately predict with certainty energy consumption of a particular lighting configuration.

Back to those promised savings.

Complex calculations or Excel worksheets easily convince most people, because most  people never use math.

Companies promising energy savings use a variety of marketing tools to persuade potential customers to sign on the dotted line: colored charts, complex calculations, etc.

When a company’s salesperson tells you the company’s actions can save you money, tell them to show you the metrics, the measurements. Demand an accounting. It’s not rocket science. It’s just ordinary arithmetic.

John White
Rockwall Controls Company, Inc.
972.771.3514      office

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Theft By Customer – You Didn’t Know?

Please don’t tell me you didn’t know. Surely you did and you do: stealing my ideas is no different than stealing my vehicle. How is it I can make such an outrageous statement? Find the answer in the Eighth Commandment.

For reference: Complete Jewish Bible, Exodus 20:1-17

How do (potential) customers commit theft?

It starts when you discover you have a problem in want of a solution. Next, you solicit solutions from one or more (usually more) service providers. As you discuss your problem, you ask how each service provider can solve that problem you have. So far, so good. So, where’s the theft? Not so fast, my friend.

Theft occurs when you reveal one service provider’s solution with one or more competitors in order to benefit (so you think) from the one valid solution at the lowest possible cost. So, wanting a good price is theft? No, not at all. But, when you reveal one service provider’s solution with the others you are stealing someone’s ideas, their solutions, intellectual property.

So, how do I get competitive prices? If you feel you must take bids, invite them and evaluate them on their own merits. Do not share the best idea with inferior service providers.

Our solutions to problems are the result of our years of experience, professional training and education. In the case of this company, our goal is to provide the best service at a reasonable price. Actually, our solutions are most often less costly than solutions of our competitors. What’s the difference?

We intentionally develop sustainable solutions, solutions that will endure for many years. Since 1986 we have had only one or two whom we could not satisfy. In which case, we simply fire the customer and go on our way.

The majority of our customers have returned to us to resolve problems year after year, decade after decade.

For the above reason, we may not spell out our solutions in great detail within the text of our proposals. Is this a trust issue? In a word: yes. Trust is earned. We depend heavily on customer and supplier referrals.

By the way, after signing an agreement, we disclose our methods and materials, along with the functionality of our software BEFORE starting work on your project.

Think of our solutions as intellectual property. Our sound ideas are what we have to offer in the marketplace. When someone compromises our ideas two things happen: we lose something of high value and you typically get something of inferior quality.

Because our customers come to us for solutions, we know they did so due to a referral by another customer, a vendor or an engineer. It is our practice to respect the privacy and intellectual property of our customers. We expect nothing less, nothing more in return.

Physiology of Human Comfort – Our Approach

Coming to Terms


“I’m too hot”, says an occupant of a conditioned space. What does “hot” mean to the complainant?

If two glass beakers of pure water are set before you, one beaker measuring 5 liters, the second 1 liter, both precisely 75.0 degrees F, which, I ask you is “hotter”? In this context, “hot” does not describe temperature, but a sense of personal comfort that is the consequence of several factors. By no means do I suggest that high temperature will not cause an uncomfortable feeling of being “hot”, but I do wish to impart a multi-dimensional, multi-variable perspective on comfort control.


Another occupant of the structure complains his space is “humid”. Is everyone feeling alike? Is it just one person? Whatever you do, don’t argue the point. If a general feeling of discomfort, there is a mechanical remedy. We can do nothing about hormones and illnesses.

For a moment, let’s look at “humidity”. For this exercise, we run over to the nearest Walmart to purchase a sponge and a bucket for this next experiment.

The sponge will represent air and temperature will be represented by the compression of the sponge.

Step 1: fill that new bucket with cold tap water.

Step 2: plunge your new sponge deeply in the water and work it to remove all air.

Step 3: place your hand under the sponge and carefully lift it from the water without compressing it.

Question: At this point, what is the relative humidity of the sponge (representing air)? Note: some water ran out of the sponge as you lifted it from the bucket.

If you answered 100%, you are very close. In reality, it would be around 90%, due to runoff.

Step 4: carefully holding still that saturated sponge, squeeze until the sponge becomes half its previous size.

Question: What is the relative humidity of the sponge, now? If you answered 50%, you’re incorrect. That’s right, water flooded out and now relative humidity is 100%.

Relative humidity is a function of absolute humidity and dry bulb temperature.

Explanation: Air, represented by the sponge, becomes denser as temperature lowers. Principally, oxygen molecules get closer together as air temperature lowers. As distance between air molecules lessens, there is less space available for H2O, forcing water to condense into a liquid state. When a given volume of air cools to its dew point, moisture precipitates and relative humidity of the air becomes (for discussion purposes) 100%.

Conversely, adding heat to the same air volume causes air molecules apart, thereby creating space into which the air can absorb moisture.


One dictionary defines enthalpy as “a thermodynamic property of a system equal to the sum of its internal energy and the product of its pressure and volume”. Simply stated, enthalpy is the total heat, sensible and latent, energy in a given volume of air.

We use thermometers to measure the sensible and we use hydrometers (relative humidity indicators) to express the latent, or hidden, heat. Actual computation takes into account pressure, but for our purposes of simplification, we ignore barometric pressure.

Enthalpy is the factor that better expresses comfortable indoor climate than either temperature or relative humidity alone. Referring to the ASHRAE psychrometric chart below, note that a dry bulb temperature of 75OF intersecting to a relative humidity of 50%, indicates an enthalpy of approximately 27.5 Btu/lb. dry air.

Figure 1 ASHRAE Psychrometric Chart - Click on image for larger size

Physiology Brief (very brief)

One can identify specialized corporal zones where comfort may be more specifically addressed. The following is the Berkeley segmented thermal manikin with 16 segments.

Contrary to conventional thinking, blood temperature varies depending how each of these 14 zones (more can be identified) responds to external temperature.

Figure 2 Berkeley Segmented Thermal Manikin

Figure 2 Berkeley Segmented Thermal Manikin[i]


  • Skin temperature is typically 10 degrees cooler than core temperature.
  • Skin releases heat from the body two ways:
    • Heat as infrared energy radiates outward from the body
    • Perspiration cools by evaporation (more on this later)
    • The vascular system and your sinuses serve as heat exchangers.
      • Blood flows in parallel paths. Wherever you find an artery, there is a corresponding vein returning blood to the cardio-pulmonary processing station.
      • As blood moves to the skin, it exchanges heat with the environment.
      • Air breathed through the nose undergoes a conservation of energy exchange by means of blood filled membranes and bony parts. This process tempers air entering the lungs to prevent too hot or too cold air from entering the bronchia.

Getting Germaine

A host of factors affect personal comfort.

  • Temperature
  • Relative Humidity
  • Air Filtration
  • Air Volume (air exchanges per hour)
  • Air Velocity
  • Indoor Air Quality (IAQ)
    • Airborne pollutants like dust, dander, perfumes, human odors
    • Carbon Dioxide Concentration
    • Toxic Gasses
    • Human relations among co-workers and supervisory personnel

Localization of Comfort Control

Traditionally, temperature control, comfort control, has been viewed as controlling the entirety of a building, but doing so doesn’t always yield even comfort and heating and cooling unoccupied spaces has a distinct cost associated with it.

In our never ending quest to lower building operating costs, designers now focus on localized control of thermal comfort. This relatively new concept brings focus on individuals within the structure, instead of focusing on the building.

Figure 1 ASHRAE Psychrometric Chart – Click on image for larger size

Our Approach

Historically, HVAC mechanical design and associated control systems focus on the equipment, not the occupants. Our approach for over 20 years is to focus on occupants and work our way back to mechanical systems.  For example, a traditional method to control the hot deck of a multi-zone air handling unit has been the outdoor air temperature reset: as outdoor temperature riseses, the temperature contro system proportionally lowers the hot deck temperature set point, without regard to the needs of occupants.

Rockwall Controls Company, Inc. has developed several algorithms now widely deployed throughout Texas. iLoad is an adaptive software that manages air handling units by means of a body of knowledge around the occupants served by a particular HVAC mechanical system.

Is our method logical? Is it logical to equally apply costly heat to a vacant space as to a space fully occupied? The answer is obvious.

Typical Applications

  • Variable-Volume Variable-Temperature systems
  • Multi-zone Air Handling Units
  • Underfloor air distribution systems


Occupant comfort depends on a range of variables, not just temperture.

  • Temperature
  • Relative humidity
  • Air velocity (air motion)
  • Barometric pressure
  • Volume of conditioned space (confined spaces require more intense solutions than large spaces)
  • Stratification of conditioned air

How can we help you?

Rockwall Controls Company, Inc.

Call anytime (972) 771-3514 to discover how Rockwall can make life a little more comfortable and a little less costly.

[i] A model of human physiology and comfort for assessing complex thermal environments, Charlie Huizenga , Zhang Hui, Edward Arens, Center for Environmental Design Research, University of California, Berkeley, CA 94720-1839, USA

How Can I Improve My Net Operating Income?

Integrating Equipment and Services

How can I improve my net operating income?

• Hold operating costs per leased square foot constant and add renters
• Cut net operating expenses for essential services like janitorial, security, office staff, etc.
• Raise rents with each renewal

Are these practical solutions? First of all, what would draw new renters? Cutting essential services will result in dissatisfaction – without a doubt. Raising rents may or may not work out for you – you always have competition.

Let’s think differently. What if we lower rents per square foot? Can we agree essential services are, well, essential? Your goal is to increase net income. Am I right? I know I am.

One little dirty secret is simply this: unoccupied office spaces have operating costs per square foot. No? Your emergency lights don’t conform to codes? Oh, they do? Then lighting has an associated cost. How about HVAC? Even though you may have an entire floor vacant, there is an HVAC penalty, especially true in multi-floor properties. The higher the building, the higher this penalty due to a variety of factors like stack effect and direct heat transmission through the structure.

The bottom line: if you want your property to perform at peak efficiency, you will want it 100% occupied.

Advancing Challenges to Profitability

Energy makes our world go round. So-called ‘green’ practices may or may not contribute to building operating efficiency. To be sure, operating costs will rise. We can’t counter issues like inflation. Clients must have their office equipment.

For now, electrical rates are relatively low, but economic uncertainty after November 2012 elections will be the “wild card”. I think economic uncertainty is the greatest challenge.

Advantage – Help Available Both Sides of the Meter

In the game of hockey, after a penalty, a player goes to the penalty box to serve his time. Naturally, this leaves his team short-handed. The other team has the advantage and usually executes a “power play” to rack up the score.
Unfortunately, in the usual course of business, it’s the property owner that most often has one of its top players – energy – sitting in the penalty box. In this game, you, the building owner, the investor, are not at disadvantage. Our team can come “onto the ice” with you to put on a power play of our own.

Helping You Both Sides of the Meter

Rockwall Controls Company, Inc. provides relief on both sides of the power meter and we’re ready and able to help you increase your net operating income and the value of your investment.

Both Sides of the Meter

On the load side, through our technical expertise we can offer solutions that reduce energy consumption through a variety of means. On the meter side, we provide energy at the lowest possible cost, along with specialized services.

Do you have the cell phone number of your energy provider? Can you pick up a phone and talk to someone who can answer your questions? No? You’re not alone.

Energy is our business. Are you ready to meet new challenges?
Rockwall Controls is eager to meet with you and evaluate potential strategies to help you on both sides of the meter.

Relief starts with either an email to or with a call to my office at (972) 771-3514.

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