by High Performance HVAC | Refrigeration |

Old coil with HVAC Refrigerant Leaks
Old Leaking Condenser Coils (also referred to as freon leaks) can cause serious issues with HVAC heat pump equipment. HVAC refrigeration circuits are designed and built to hold the refrigerant. It is a sealed hermetic system. The HVAC refrigeration circuit should never need refrigerant. An HVAC refrigeration system does not burn refrigerant. The refrigerant is used over and over again to move heat from one place to another. Aside from a leak, once the refrigeration system is properly charged, the system should never need refrigerant for the life of the equipment. (more…)
by High Performance HVAC | Commercial HVAC |
HVAC Reznor Heating System – this Reznor unit heater provides heating for warehouses, garages, and other open spaces which can be heated with unit heaters. Unit heaters are ideal for big open areas which need heating without ductwork being used to channel the air into the open space. (more…)
by High Performance HVAC | Direct Digital Controls |
HVAC 3R NEMA Rated Control Panels - These control panels offer resistance to inclement weather. They house the DDC controllers for two small chillers and two air handlers. The chillers provide chilled water for air conditioning to the air handlers. (more…)
by High Performance HVAC | Commercial HVAC |

Chilled Water System Basics - Chilled water systems work much the same way as direct expansion systems work. The exception is they use water in the coil rather than refrigerant. Technically speaking, water can be classified as a refrigerant. Chilled Water systems can be rather complex and many chilled water systems are found in commercial and industrial applications. There are some chilled water systems used in residential applications. (more…)
by High Performance HVAC | Technical Reference |
HVAC Careers - So you want to become an HVAC Technician and want to know how to find a successful career? It’s not easy but here’s some help for you. First of all, you need a good foundation of the basics and it would help if you understood the different types of jobs you can find by pursuing a career in HVAC. (more…)
by High Performance HVAC | Technical Reference |

Common Sense Safety HVAC Codes - Some HVAC Installation technicians take pride in their work and make any installation job they perform look like a work of art. There are others who don’t care and want to install the unit as quickly as possible and move on down the road to the next job so they can do the same.
It really does not take much more time to do things right in the first place including reading the instruction manual that comes with every new condenser or air handler (actually all new HVAC equipment comes with instructions for installation). (more…)
by High Performance HVAC | Buyers Advice |
HVAC Tax Rebates and Credits | Buyers Advice - Tax Rebates and Credits for HVAC can encompass several different ways to receive credit, an increased refund, or another way of getting money for upgrades you make to the HVAC equipment you have in your home or business. There is a comprehensive source for finding these tax rebates and tax credits from both government agencies and from utilities.
Tax rebates and credits are applicable to not only upgrades in the efficiency levels of HVAC equipment but also upgrades in windows and insulation. Any type of upgrade that will reduce energy use can be eligible for a tax credit or tax rebate or a reduction in the amount you pay for utilities. Click the image below to go to the database of tax rebates for all states in the USA.

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by High Performance HVAC | Buyers Advice, Maytag HVAC Reviews, Rheem HVAC Reviews |
Maytag Vs Rheem | HVAC Buyers Advice
Maytag Vs Rheem - To Richard
Subject: highperformancehvac.com: Maytag vs. Rheem gas-electric packaged heater AC
From: Steve
This is an inquiry e-mail via https://highperformancehvac.com
Hi, We’re trying to compare Maytag and Rheem gas/electric heating/AC packaged units to replace our old ones. The Maytag (15 SEER, 4 ton; PPG1GFX048120) has 2-stage heating and cooling and a variable-speed blower, and 12 years of parts and labor. The Rheem (14SEER, 4 ton; RRPL-B) has a single stage and variable speed blower, 10 yr parts and we can purchase a 10 yr labor warranty.
The Maytag has seemingly better features, but we’re not familiar with Maytag heater/AC units, but know the Rheem name, and have been told it’s highly rated. One heating and air conditioning company quoted the Maytag at more than $2500 less than two other companies quoted the Rheem.
Are you familiar with the Maytag, and do you know if it’s as reliable and as highly rated as the Rheem? Also, whether the wholesale price of the Maytag is that much less than the Rheem, or is the price difference more likely to different labor costs and profit margins of the installation companies?
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by High Performance HVAC | Technical Reference |
Variable Speed GE ECM Motors - When you look at buying a new HVAC system it will surely arise when the HVAC salesman or HVAC contractor who comes to give you an estimate will show an HVAC system that has a variable speed motor or the GE ECM (Electronically Commutated Motor) installed in it. These are systems that have a higher efficiency rating than the HVAC equipment that has the typical electric blower or condenser fan motor. (more…)
by High Performance HVAC | Thermostats |

Blank Display on Thermostat Problem - Screen Disappeared - The thermostat display is our interface with our HVAC equipment. The display lets us know what the temperature is in the house. The display tells us what the desired settings are including letting us know the setpoint setting the temperature.
Some displays give us time, and the newer modern displays show us family photos like a screensaver on our computer. But what happens when the display is not there, or there is a blank thermostat display or no display on the thermostat?
Is it a bad thermostat or something else that caused the display to disappear? What do you do when the thermostat screen is not working? (more…)