Hydronic Heating

Question 1

Answer 1

b. multiple zoning

Question 2

Answer 2

d. carpet and underlay

Question 3

Answer 3

a. north and south exposures

Question 4

Answer 4

b. gpm, velocity and length of circuit

Question 5

Answer 5

c. 0.38 gpm

Question 6

Answer 6

a. 2.69 feet per sec

Question 7

Answer 7

d. 3.6 feet of head

Question 8

Answer 8

b. 225 feet of tubing

Question 9

Answer 9

d. btu per square foot and room temperature

Question 10

Answer 10

a. 2.04

Question 11

Answer 11

a. 122 F

Question 12

Answer 12

c. in areas with the greatest heat loss

Question 13

Answer 13

b. two adjacent walls that are exposed to the outside

Question 14

Answer 14

b. code requires insulation below poured-in-concrete applications

Question 15

Answer 15

d. the greater of either 60 psi or 1.5 times working pressure for a period of 1 hour with no pressure drop

Question 16

Answer 16

a. when the radiant floor does not keep up with the heat load

Question 17

Answer 17

c. gallons per minute and velocity

Question 18

Answer 18

b. 3.66 ft/sec and 5.89 ft of head for 100 feet of tubing

Question 19

Answer 19

d. to stop and start flow in a system as required

Question 20

Answer 20

a. a bypass pump between the supply and return boiler piping

Question 21

Answer 21

b. a mixing valve

Question 22

Answer 22

c. mixes water from the heat source and the system return in order to temper system supply water

Question 23

Answer 23

a. a drive motor and controller

Question 24

Answer 24

c. a plate heat exchanger

Question 25

Answer 25

c. a controller for the pump