Commercial Boiler Stack Economizer - This is not a normal commercial boiler stack in this boiler room. It has a bypass stack for a commercial hot water economizer. All boilers have make-up water to make up for water lost in the systems, especially for domestic hot water use.
An economizer makes things more efficient. In this regard, the economizer utilizes waste heat. Waste heat is normally vented into the atmosphere. This system was specially engineered and tested to ensure the proper operation of the design. (more…)
Natural Gas Properties and Furnace Heating Efficiency - Natural Gas is a popular fuel used for heating systems in America and other countries. If we look at the properties of natural gas and the heating efficiency of natural gas furnaces we will see that natural gas furnaces lose efficiency because of what is contained in natural gas as it is delivered to your home for consumption by your natural gas furnace.
Natural gas in its raw form coming straight from the ground needs to be refined to remove impurities that should not be contained in natural gas. As you read below you will see that in the refining process moisture is removed from the natural gas however during the refining process some of the moisture in the natural gas remains and therefore this affects the efficiency of your natural gas furnace. (more…)
HVAC Tip - Did you know the human body produces approximately 250 BTU/h when sleeping? Here is a basic list of the approximate BTU/h produced by the human body for various activities:
Watching Television - 400 BTU/h (any sedentary activity)
Cleaning the house - 700 BTU/h (moderate activity)
Mowing the Grass w/push mower - 1800 BTU/h (heavy activity)
Running a marathon - 2400 BTU/h (extreme activity)
The number of people occupying a dwelling or space is a consideration in the load calculation for sizing air conditioning systems simply because humans do give off heat. BTW, the Matrix over blew the numbers. In the movie Morpheus states humans give off over 25,000 BTU's. Only the author of this website is that hot..............))))))
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