Heat Balance: The equilibrium which exists on the average between the radiation received by the earth and atmosphere from the sun and that emitted by the earth and atmosphere. The balance between heat loss (long wave radiation from the earth back into the atmosphere) and heat gain (incoming solar radiation).

 

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Heat Balance: The equilibrium which exists on the average between the radiation received by the earth and atmosphere from the sun and that emitted by the earth and atmosphere. The balance between heat los . . . View Full Definition

Heating Degree Day: One heating degree day is given for each degree that the daily mean temperature is below 65°F. It is used as an indication of fuel consumption.

Heating Load: The amount of heating required to keep a building at a specified temperature during the winter, usually 65° F, regardless of outside temperature.

Heathland: Open uncultivated land (particularly in the british isles) having sandy soil and dominated by small shrubs with small hard leaves (e.g., heather)

Heat Wave: A period of abnormally and uncomfortably hot weather. It could last from several days to several weeks. The Weather Channel uses the following criteria for a heat wave: a minimum of ten stat . . . View Full Definition

Heat Treatment: The process of heating and cooling a solid metal or alloy to obtain certain desired properties or characteristics.

Heat Trim: Work done by the Heating Contractor to get the home ready for the municipal Final Heat Inspection. This includes venting the hot water heater, installing all vent grills, registers, air cond . . . View Full Definition

Imbalance Of Orders: In the context of finance. absence of cash flow needed to fulfill financial debts and meet obligations. In the context of investments, describes a lightly traded investment such as a stock o . . . View Full Definition

International Wheat Agreement (IWA): Replaced in 1995 by the International Grains Agreement.

Molar Heat Capacity: The heat required to raise the temperature of one mole of a substance by 1°C is called the molar heat capacity of the substance. Molar heat capacity is an intensive property with SI system u . . . View Full Definition