Gas

Question 1

CO

Answer 1

Carbon Monoxide

Question 2

CO2

Answer 2

Carbon Dioxide

Question 3

Products of combustion

Answer 3

CO, C02, C, water vapour, heat

Question 4

Calorific Value of CH3

Answer 4

1000 BTU/h

Question 5

Calorific Value of C3H8

Answer 5

2500 btu/h

Question 6

Calorific Value of C3H10

Answer 6

3200 BTU

Question 7

Effective Venting Height

Answer 7

5’0(1.5m)
Minimum

Question 8

Clearance to combustible for regular venting

Answer 8

6 inches

Question 9

Clearance to Combustible B vent

Answer 9

1 inch

Question 10

One of the greatest problem encountered with venting systems is ?

Answer 10

Condensation of the water vapour contained in vent gases

Question 11

How much minimum should a chimney extend on flat roof

Answer 11

2ft 600mm

Question 12

How much minimum should a chimney extend on slope roof

Answer 12

2ft 600mm from the highest point within 10 feet radius

Question 13

Type B spec

Answer 13

Double wall

Question 14

Type BW specs

Answer 14

Oval, for 2:4 walls
Double wall

Question 15

Type L specs venting

Answer 15

Stainless, Double wall, coil

Question 16

Type BH venting specs (include Z)

Answer 16

High Efficient appliances, special plastic compound