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What is the heat loss limitation for a series loop system?
60 to 70 MBH per loop
What is the definition of zoning?
An area or portion of a heating system served by one or more loops and individually controlled (manually or automatically)
How much heat is available from 10 ft of residential baseboard with a water supply of 1 gpm at 190 F ?
10 feet x 650 BTU/ft at 1 GPM = 6500 BTU
How much heat is available from 25 feet of commercial baseboard with a water supply of 180 F using two rows of 4 1/4 inch x 4 1/4 inch fin with 1 1/4 inch copper tube spaced on 12 inch centres?
25 ft x 2174 BTU/ft = 54350 btu
What are the two types of hot water unit heater ls?
A) blow through (horizontal)
B) draw through (vertical)
What is the recommended max installation height for a horizontal unit heater?
3.66 m (12 feet)
Where should heat transfer units be located?
Under Windows next to doors and in areas of high heat loss
What is the definition of radiation?
Radiation is the transfer of heat from one object to another through an intervening space wherein the intervening space may not be heated (the processes of emission, transmission, and absorption of radiant heat energy).
The two main types of ceiling radiant panels are:
A) modular
B) linear
Which radiant panel can have supply and return piping at the same end?
Any panel with an even number of tube passes
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