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The Parthenon was completed in the 5th century BC and is considered to be one of the world’s oldest buildings. In 2,500 years the Parthenon served as a temple, treasury, ammunition dump and museum. Its use has changed about every 625 years. Unlike the Parthenon, Modern Commercial Buildings need to be very adaptable to suit the rapidly ever-changing needs of business. Today's buildings use can change in decades to a matter of months, the interior wears and mechanical systems wear out. Building retrofits are necessary to sustain business productivity. Most modern buildings life cycle ends in less than a century and are replaced with new more suitable structures.
New Constuction
The life-cycle cost should be considered during the design phase of any building. Architects & Engineering firms can help assess total building cost over time. Air-Ex can help your or your consultant select the appropiate HVAC systems that best fit your needs. Considerations consists of:
Initial costs (design and construction).
Operating costs (energy, water/sewage and waste).
Maintenance, repair, and replacement costs.
Other environmental or social costs/benefits (impacts on transportation, solid waste, water, energy, infrastructure, worker productivity, outdoor air emissions, etc).
Existing Buidings
HVAC systems life cycles vary, however, if properly installed and maintained, equipment longevity improves. Air-Ex Air Conditioning, Inc. expertise can help you select equipment, maintain equipment or retrofit your systems improve life of your HVAC systems.
Estimated HVAC Life by equipment types as follows:
Alpha List |
Years |
Longevity List |
Years |
Air Handling Units: Built Up |
30 |
Unit Heaters: Electric |
10 |
Air Handling Units: Packaged |
25 |
Chillers: Scroll |
15 |
Chillers: Centrifugal |
25 |
Condensers: Evaporative |
15 |
Chillers: Reciprocating |
20 |
Furnaces |
15 |
Chillers: Screw |
20 |
Hot Water Boilers: Electric |
15 |
Chillers: Scroll |
15 |
Rooftop Air Conditioners |
15 |
Condensers: Air Cooled |
20 |
Unit Heaters: Gas |
15 |
Condensers: Evaporative |
15 |
Cooling Towers: Galvanized Metal |
18 |
Cooling Towers Ceramic Fiberglass |
35 |
Electric Motors |
18 |
Cooling Towers: Ceramic |
35 |
Chillers: Reciprocating |
20 |
Cooling Towers: Galvanized Metal |
18 |
Chillers: Screw |
20 |
Cooling Towers: Wood |
20 |
Condensers: Air Cooled |
20 |
Electric Motors |
18 |
Cooling Towers: Wood |
20 |
Fan Coil Units |
20 |
Fan Coil Units |
20 |
Furnaces |
15 |
Air Handling Units: Packaged |
25 |
Hot Water Boilers: Cast Iron |
35 |
Chillers: Centrifugal |
25 |
Hot Water Boilers: Electric |
15 |
Hot Water Boilers: Steel Fire-Tube |
25 |
Hot Water Boilers: Steel Fire-Tube |
25 |
Hot Water Boilers: Steel Water-Tube |
25 |
Hot Water Boilers: Steel Water-Tube |
25 |
Pumps |
25 |
Pumps |
25 |
Unit Heaters: Hot Water |
25 |
Rooftop Air Conditioners |
15 |
VAV Boxes |
25 |
Unit Heaters: Electric |
10 |
Air Handling Units: Built Up |
30 |
Unit Heaters: Gas |
15 |
Cooling Towers Ceramic Fiberglass |
35 |
Unit Heaters: Hot Water |
25 |
Cooling Towers: Ceramic |
35 |
VAV Boxes |
25 |
Hot Water Boilers: Cast Iron |
35 |
Air-Ex Air Conditioning, Inc. expertise in HVAC systems positions us to improve the longevity of your HVAC systems.
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