An HVAC design that uses outdoor air conditions to obtain as much cooling or warming as possible before heat is added or removed from the conditioned space.
a frugal person who limits spending and avoids waste
a device that allows to shorten HVAC unit run time and thus reduce energy costs when the outdoor air temperature (more correctly, heat) is practical to use
Shell and tube heat exchanger used to heat boiler feed water.
A heat exchanger for recovering heat from flue gases for heating water or air.
A device typically used with a ribbon burner to conserve gas while lit, but not in use.
An arrangement of tubes through which the feed water passes before entering boiler drum and flue gases leave burners. Economizers are invariably counter flow; meaning the water flows opposite to the gases, and heat of gases is transferred to the water.
A series of tubes located in the path of flue gases. Feedwater is pumped through these tubes on its way to the boiler in order to absorb waste heat from the flue gas.
An Economizer is a mechanical heat exchange device that heats a fluid up to (but not beyond) the boiling point of that fluid. Economizers are so named because they can make use of the enthalpy in fluid streams that are hot, but not hot enough to be used in a boiler, thereby recovering more useful enthalpy and improving the efficiency of the steam cycle.