Gas Flashcards
1
Q
CO
A
Carbon Monoxide
2
Q
CO2
A
Carbon Dioxide
3
Q
Products of combustion
A
CO, C02, C, water vapour, heat
4
Q
Calorific Value of CH3
A
1000 BTU/h
5
Q
Calorific Value of C3H8
A
2500 btu/h
6
Q
Calorific Value of C3H10
A
3200 BTU
7
Q
Effective Venting Height
A
5’0(1.5m)
Minimum
8
Q
Clearance to combustible for regular venting
A
6 inches
9
Q
Clearance to Combustible B vent
A
1 inch
10
Q
One of the greatest problem encountered with venting systems is ?
A
Condensation of the water vapour contained in vent gases
11
Q
How much minimum should a chimney extend on flat roof
A
2ft 600mm
12
Q
How much minimum should a chimney extend on slope roof
A
2ft 600mm from the highest point within 10 feet radius
13
Q
Type B spec
A
Double wall
14
Q
Type BW specs
A
Oval, for 2:4 walls
Double wall
15
Q
Type L specs venting
A
Stainless, Double wall, coil
