AC is shorthand for either a) electrical meaning Alternating Current or b) short for Air Conditioner or Air Conditioning

AFUE or Annual Fuel Utilization Efficiency, is a rating applied to how efficient a combustion appliance uses it’s main fuel source. This applies to boilers, water heaters & furnaces that burn gas, propane, or oil. In short for every dollar you spend, that amount is actually going to heat your place. For example, a 78 AFUE essentially […]

The Air Handler is one of two major portions of an air conditioner system. It is what accepts the incoming air, conditions it, (heating it or cooling it) and then delivers that conditioned air to just one room or to the whole house. In many cases you will find this portion either somewhere inside the house, […]

ASHRAE aka as the American Society of Heating, Refrigeration, and Air Conditioning Engineers, is an organization that sets many standards related to the appropriate ventilation, heating and cooling needs of your house

A balanced ventilation system is commonly referred to as an or . Essentially this is where separate fans are used to exhaust stale polluted indoor air while bringing in “fresh” outdoor air. The benefits of this system is its ability to not only precondition the incoming air but also to filter it.

BTU or British Thermal Unit equals the quantity of heat required to raise the temperature of one pound (16 ounces / .45 KG) of water one degree Fahrenheit. One common comparision is a wooden kitchen match basically expends one BTU.

The CAZ or Combustion Appliance Zone is essentialy where your gas-fired appliances are located.

CDD or Cooling Degree Day, is a unit used for estimating /modeling the energy needed for cooling a building. The standard practice is to take the average daily temprature and subtract that from 65° (a day with an average temprature of 85 would equal 20). The annual CDD combines all the days with an average temperature above […]

Charge refers to how much Refrigerant / Freon is found in the Air Conditioning system. You can either have the proper charge, to much or to little of a charge. The last two are both bad & result in not only your unit not conditioning the air properly, but working harder than it is designed for. […]

Coefficient of Performance or COP is a ratio used to measure the heating performance of the heat pump when it reaches steady state. It is comparable to knowing what your cars MPG is on the highway while not taking into account the hills, construction zones, and in town driving.