05/02/2024
The first HVAC controllers where pneumatic, meaning they used pressurized gas to enable mechanical motion. Mechanical engineers used their knowledge of the properties of steam and air to control the flow of heated or cooled air.
Heating Air Conditioning Company
California State Contractor license No. 715416. We are a full service HVAC contractor.
824 E Edna Place
Covina, CA
91723
| Monday | 8am - 4:30pm |
| Tuesday | 8am - 4:30pm |
| Wednesday | 8am - 4:30pm |
| Thursday | 8am - 4:30pm |
| Friday | 8am - 4:30pm |
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