October 2013
Intermediate to advanced
306 pages
12h 17m
English
Content preview from Estimating for Heating and Ventilating, 3rd Edition
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140 ESTIMATING LABOUR REQUIRED FOR ERECTION
In the following table: S = Steam pipe C=Condensate pipe
Heater rating
{up to)
Approx.
weight
Size of
connec-
tions
Hours, fitter and mate
Heater rating
{up to)
Approx.
weight
Size of
connec-
tions
Size of mains, mm
kW
Btujh
kg
mm S 32
40 50
65 80 100 125
150
kW
Btujh
kg
S C
C25 32 32 40
50
65
80 80
14-66
50000 39
25
25 120 130 13-5 140 14-5 150 15-5
160
23-45 80000 45
32
20
150 15-5 160 16-5 17-0 17-5
18-0
35-17 120000 57 32 20 170
17-5
18-0
18-5
190
19-5
200
49-83
170000 73
40
25
20-0 21-0 21-5 22-0 230 24-0
70-34
240000 86 40 25 21-5
22-0 22-5 230 24-0
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.