Posts Tagged ‘Grand Blanc’

Differences Between Commercial and Residential HVAC Systems

Friday, June 13th, 2014

Taking care of the needs for comfort in a business and a home are very different from each other. Although commercial and residential air conditioners and heaters work in similar ways (an air-source AC, no matter where it is, functions through the same process of heat exchange) there are a large number of differences that make it imperative that only technicians with commercial experience work on commercial HVAC systems.

For your commercial air conditioning in Grand Blanc, MI, trust to the experienced team at Davison Heating & Cooling. We offer a variety of services for the comfort of businesses.

Here are three of the key differences between commercial and residential HVAC:


This is something that many people notice about the HVAC systems of commercial buildings without really having it stick in their minds: most of the systems are located on the roof of the building. Residential HVAC systems tend to sit outside a home, either behind or beside it. The placement of commercial systems on the roof has a number of reasons behind it: it frees up valuable interior workspace, removes a major source of sound pollution, allows repair service and maintenance that won’t interfere with daily operations, and is safe from vandalism and other human interference.

Commercial systems are usually packaged, residential systems are splits

For commercial rooftop units, all the components are housed in a single cabinet: the condenser, the evaporator, the compressor, the blower, the condenser fan, the condensate drainage system. The single cabinet connects to the ventilation system from outside, and only the ducts and zone dampers are housed inside the building. This is called a packaged unit. Residential HVAC systems such as air conditioner and heat pumps are usually “splits”: an outdoor cabinet houses the condenser, compressor, condenser fan, while an indoor unit has the evaporator, blower, and condensate drainage. There are a few exceptions to this, but almost all homes and businesses follow this pattern.

Commercial systems are modular, residential systems are standalone

When you have an HVAC system installed in your home, it comes as a single unit that you cannot expand on. If you require greater heating or cooling, you need to install an entire new system. (This is a reason that having professional installation is so important: the experts will make sure the new AC is the right size for your home.) Commercial systems, however, come in modules that fit together to add onto the heating/cooling power as necessary. This makes them easier to construct and transport, and also allows businesses to expand and add on new modules for more comfort power as necessary.

As business owners ourselves, we understand that you must maintain a level of comfort in your workplace to keep employees/clients/customers content. If you have malfunctioning air conditioning in Grand Blanc, MI at your workplace, contact Davison Heating & Cooling right away and we will take care of everything.

3 Qualities of Commercial Air Conditioning Systems

Friday, May 23rd, 2014

Keeping your workspace cooled down during the summer is an important part of successfully running a business. When you need help to keep your AC humming away and protecting the comfort of your employees, customers, and clients, you must rely on the assistance of trained HVAC specialists. Commercial systems are unlike residential ones, and it requires people with a commercial HVAC background to handle repairs and maintenance properly. We’ll look a bit at some of the important qualities of commercial air conditioners in this post to demonstrate why they need specialized work.

For all your needs for commercial heating and commercial air conditioning in Grand Blanc, MI, call on the experts at Davison Heating & Cooling. We have extensive experience with commercial HVAC installation, repair, and maintenance.

Important qualities of commercial ACs

  • Size: At the lowest end of the commercial spectrum, “light commercial air conditioning,” the systems handle 25 tons of cooling. This is far greater than the maximum of residential systems, even for large homes. Most businesses will require much more than this, with 50 ton rooftop units combined to provide sufficient cooling for all the rooms, employees and customers in a work-space. This makes commercial air conditioners too large for anyone except specially trained technicians.
  • Location: The standard system for commercial HVAC is the rooftop package unit. Commercial air conditioners moved to rooftops early in their history because buildings in downtown areas were built too close to one another to allow air conditioner units to be built anywhere else. They’ve remained on the roof ever since, granting more space to businesses and removing noise distractions. These rooftop units are of a different kind of construction than residential systems, and need specialized training to repair them.
  • Controls: Perhaps the most complex aspect of commercial air conditioners are the thermostat controls, which are in a complex network that operates different places in a workspace and usually link into a central control. Where most homes have only a single thermostat that cools down the entire home at one time, commercial systems must use zone control to accommodate the needs of more people and rooms that requires specific temperature levels for their individual purpose. A single thermostat problem can throw off the whole network, and will need trained repairs to fix.

Call on the commercial HVAC experts

Don’t take chances on either amateur repairs or professional repairs without commercial training. Instead, call Davison Heating & Cooling.

We’ve delivered quality services for commercial air conditioning in Grand Blanc, MI since 1998. Call today for the help your business needs.

Common Misconceptions about Air Conditioner Use

Thursday, April 24th, 2014

Air conditioners are complex devices, but they are relatively simple to use. With the help of a programmable thermostat, you will rarely need to think much about the AC in your home at all unless it malfunctions.

But even though air conditioning systems are easy to use it doesn’t mean they can’t be misused. A number of myths about how best to run an AC have circulated for years, even before the Internet made the spreading of misconceptions into a basic part of life.

We’d like to spotlight some of these common myths about using an AC to show how you can receive the most efficiency and comfort from your air conditioning in Grand Blanc, MI. For help with your AC that goes beyond basic use, you can call the experts at Davison Heating & Cooling.

“It’s more energy-efficient to keep the AC running all day.”

An air conditioner draws the most power when it starts up, and this is a reason why a “short-cycling” air conditioner, one that is malfunctioning so it continually starts and stops, will waste money. However, this has led to the misconception that you shouldn’t turn the AC off at all during the day, instead letting it run, even when you aren’t home. This is false: an air conditioner that runs when nobody is in a house is an immense waste of energy. It’s more efficient to use a programmable thermostat to turn the AC on a half hour before you come home so you’ll have a cool house rather than let the system run constantly.

“You’ll receive the best comfort from the lowest setting on the AC.”

For most air conditioners, the lowest setting on the thermostat is 60°F. However, there are very few situations where this is a good comfort level; don’t drop the AC to the lowest level just because you can. At 60°F, the air conditioner will not cool you down faster, it will instead stay on longer to reach the lower temperature… which won’t feel that comfortable anyway. An ideal temperature is around 72°F. Going 12° higher than the lowest setting can save you approximately 30% off your electricity bills.

“Turn the AC on during every warm day.”

Summer doesn’t automatically mean the air conditioner should be on. Unless you have people with special temperature needs living in your home, you shouldn’t turn on your air conditioner until the thermometer rises above 80°F on days with mid- to low-humidity. During average warm weather, open up the windows and use fans to cool off. (Installing ceiling fans is a great way to reduce the need for air conditioning during warm weather.) For more humid days, you may need to turn the AC on for some lower temperatures. Locate your comfort level and only set the air conditioner to turn on when you need it.

If you can break away from these misconceptions about air conditioner use, you will save money on your electric bills and spare your AC from extra stress that will lead to malfunctions and premature aging.

For help with your air conditioning in Grand Blanc, MI, call up Davison Heating & Cooling and schedule regular maintenance with our trained and experienced air conditioning experts. 

How Build-Up in Your Water Heater Can Cause Damage

Friday, March 21st, 2014

You use your water heater daily, although you rarely think about it. Each time you turn a hot water tap, take a shower, switch on the dishwasher, or do a load of laundry, your water heater supplies the necessary heated water. The only time the water heater will catch your attention is when it starts to malfunction. When that happens, you’ll need to call for repairs from professionals ASAP to restore your hot water.

One of the more common problems that can affect a water heater is a build-up of sediment inside the water tank. This can result in a number of difficulties that will require repairs to your water heater in order to fix. Call Davison Heating & Cooling when you need water heater repair service in Grand Blanc, MI. We’ve helped keep hot water flowing in mid-Michigan since 1998.

Sediment Build-Up and Water Heater Repair

Sediment refers to any solid particle that does not dissolve in water under normal conditions. Sediment can enter your water heater through the municipal system and includes sand, grit, iron, and the minerals associated with hard water, such as magnesium and various calcites. Given time, this sediment will start to settle inside the tank of the water heater and cause damage.

The first major problem this sediment build-up can create is interference with the drain valve in the tank. This will cause your water heater to drain more energy to properly circulate water and will result in higher energy bills.

The second problem from sediment is that it can cause your water heater to overheat. As the sediment develops along the bottom of the tank, it reduces the available water volume. As this occurs, the water will begin to overheat and drive up the pressure inside the tank. High pressure is responsible for many kinds of damage, in particular leaking that could ruin the entire system.

Sediment also encourages the development of corrosion. A water heater has an anode rod to prevent corrosion from entering the water tank, but excess sediment can overcome this and cause the system to begin to rust. A rusting water heater usually must be replaced.

Repairs and Prevention

If you notice discoloration in your hot water, call for repairs immediately: this is one of the first warnings of sediment developing in the tank. Signs of leaking or any appearance of corrosion are also reasons to call for professionals without delay.

You can prevent sediment build-up with regular maintenance on your heater. A yearly visit from a maintenance technician will provide your water heater with flushing that will remove the sediment inside. Annual flushing is usually sufficient to stop excess sediment from harming the water heater.

For professional heating system repair in Grand Blanc, MI, as well as maintenance, contact the experienced team at Davison Heating & Cooling. Give us a call today to schedule your next service repair appointment

When Is a Good Time to Have My Fireplace Serviced?

Tuesday, January 28th, 2014

Although a fireplace in your home is no more dangerous than any other heating system—provided it receives proper care—there are precautions you need to take with one. Your fireplace will occasionally require service, and there are a few signs that you should look out for. Davison Heating & Cooling can bring you the service you need whenever you think your fireplace requires help.

Here are some times when you should look into having service for your fireplace in Grand Blanc, MI:

  • When smoke and fumes start entering your home: Key to having a safe fireplace in your home is venting. If your fireplace does not effectively remove smoke, fumes, and other exhaust from the hearth, it needs to be serviced immediately to discover the problem. Animal nests blocking the chimney, cracked flue liner, stuck damper, broken gas line… all of these problems can contribute to a dangerous, and at the very least unpleasant, flow of exhaust into your home.
  • The gas or electricity won’t come on: If you have a gas-powered fireplace or an electric one, at the first sign of trouble with getting the power to come on you need to call for service. This is especially true for gas fireplaces, since you should never undertake tampering with a gas line on your own, and there is a potential for leaking of carbon monoxide into your home.
  • During warmer weather: Although we won’t have many warm days for the next two months, it’s much easier to schedule service on a warmer day when you don’t plan to use your fireplace. You’ll also find repair technicians from heating companies easier to get ahold of during these slower times.

Schedule regular maintenance service as well

You should also have your fireplace serviced at least once a year with regular maintenance. There’s a myth that fireplaces only require maintenance every five years; for optimal performance and safety, you need to have maintenance done annually. Call Davison Heating & Cooling for proper maintenance for your fireplace in Grand Blanc, MI. Our technicians will make sure your fireplace is burning fuel properly and venting safely so that you have your warm hearth whenever you need it.