9
According to definition, water hardness is a value characteristic of the dissolved salts found in water (calcium and magnesium
hydrogen-carbonate, °dH = 0.357 meq/l).
VII. VENT CONNECTION
FUMES DISCHARGE
Hot fumes and odours are emitted from the cooking chamber during cooking. This is located at the
top part of the back of the oven. Do not place objects on the discharge so as not to hinder the
outflow of the fumes and hence avoid causing damage thereto. It is advisable to position the oven
under an
adequate ventilation to outside for hot fumes and odours through a pipe or duct no smaller than
the oven vent. Avoid bends and blockages.
VIII. STACKING OVENS
Stacking several ovens requires the use of the special kit which keeps the correct distance between the
two ovens.
Unit
mekv/l
°dH (°dH)
°e
°f (°tH)
mg/l CaCO
3
gpg CaCO
3
1 mekv/l
1
2.805
3.51
5
50
2.924
1 °dH (°dH)
0.3536
1
1.25
1.78
17.8
1.042
1 °e
0.2852
0.8
1
1.43
14.3
0.833
1 °f (°tH)
0.2
0.561
0.702
1
10
0.585
1 mg/l CaCO
3
0.02
0.0561
0.0702
0.1
1
0.0585
1 gpg CaCO
3
0.342
0.9593
1.2004
1.71
17.1
1
