LAARS Heating Systems
Page 18
Section 5
Water floW reqUIrementS
5.1
magnatherm Boiler flow and Head requirements
5.2
magnatherm Water Heater flow and Head requirements
Dimensional Data
Sizing Data
Water Pipe Gas Pipe
Boiler Thermal
Efficiency
Water Heater Thermal
Efficiency
Water
Content
Vent
Diameter
Vent
Length
Inches
cm
Inches
cm
Inches
cm
Inches
cm
(NPT)
(NPT)
MBH
kW
MBH
kW
%
%
lbs
kg
lbs
kg
lbs
kg
Gallons
in (cm)
ft (m)
2000
29.3
75
77
196
38.0
97
57.0
145
2.5
1.5
2000
1999
586
1896
556
95.0
96
1390
630
1562
709
1590
721
22
8 (20)
100 (30.5)
3000
30.8
78
87
221
41.5
105
60.5
154
3
2
3000
3000
879
2825
828
95.0
95
1785
810
2039
925
1985
900
31
10 (25) 100 (30.5)
4000
34.5
88
97
246
52.0
132
70.0
178
4
2.5
4000
4000
1172
3680
1079
95.0
96
2278
1033
2742
1244
2478
1124
56
12 (30) 100 (30.5)
Boiler Thermal
Efficiency (outdoor)
Water Heater Thermal
Efficiency (outdoor)
MBH
kW
%
%
1896
556
95.0
96.8
2825
828
95.0
95.8
3680
1079
95.0
96.8
Boiler Water Flow Requirements
flow
Head loss
flow
Head loss
flow
Head loss
flow
Head loss
flow
Head loss
flow
Head loss
GPm
feet
GPm
feet
GPm
feet
lPm
m
lPm
m
lPm
m
2000
128
23.5
109
17.1
95
13.6
2000
485
7.2
413
5.2
360
4.2
3000
190
34.2
164
25.8
142
18.9
3000
719
10.4
621
7.9
538
5.8
4000
255
38.2
218
28.5
190
22.5
4000
965
11.6
825
8.7
719
6.9
Volume Water Heater Flow Requirements
MagnaTherm Electrical Options
Temp Rise
Flow
Head Loss
Grains
°F (°C)
GPM (LPM)
Feet (m)
per Gallon
2000
3000
4000
2000
3000
4000
2000
20 (12)
177 (670)
43.9 (13.4)
10
22.6
N/A
N/A
15.1
N/A
N/A
3000
25 (14)
220 (833)
46 (14)
10
11.3
N/A
N/A
8.8
N/A
N/A
4000
30 (17)
266 (1006) 41.2 (12.6)
10
12.7
19.4
19.4
7
12.5
13
6.2
8.7
8.7
3.2
5
4.8
4.5
5.9
5.9
2.8
4
4.4
Current (Nominal)
Shipping Weight
Size
Size
Size
Size
Input Rate
Output Rate
Product Weight Operating Weight
Size
A
B
C
D
temperature rise in °C
temperature rise in °f
600V Three Phase
Current (FLA)
120V Single Phase
240V Single Phase
208V Three Phase
480V Three Phase
Voltage
Output Rate
17°C
19°C
22°C
30°f
35°f
40°f
Headloss is for boiler only (no piping)
*
*
*
Dimensional Data
Sizing Data
Water Pipe Gas Pipe
Boiler Thermal
Efficiency
Water Heater Thermal
Efficiency
Water
Content
Vent
Diameter
Vent
Length
Inches
cm
Inches
cm
Inches
cm
Inches
cm
(NPT)
(NPT)
MBH
kW
MBH
kW
%
%
lbs
kg
lbs
kg
lbs
kg
Gallons
in (cm)
ft (m)
2000
29.3
75
77
196
38.0
97
57.0
145
2.5
1.5
2000
1999
586
1896
556
95.0
96
1390
630
1562
709
1590
721
22
8 (20)
100 (30.5)
3000
30.8
78
87
221
41.5
105
60.5
154
3
2
3000
3000
879
2825
828
95.0
95
1785
810
2039
925
1985
900
31
10 (25) 100 (30.5)
4000
34.5
88
97
246
52.0
132
70.0
178
4
2.5
4000
4000
1172
3680
1079
95.0
96
2278
1033
2742
1244
2478
1124
56
12 (30) 100 (30.5)
Boiler Thermal
Efficiency (outdoor)
Water Heater Thermal
Efficiency (outdoor)
MBH
kW
%
%
1896
556
95.0
96.8
2825
828
95.0
95.8
3680
1079
95.0
96.8
Boiler Water Flow Requirements
flow
Head loss
flow
Head loss
flow
Head loss
flow
Head loss
flow
Head loss
flow
Head loss
GPm
feet
GPm
feet
GPm
feet
lPm
m
lPm
m
lPm
m
2000
128
23.5
109
17.1
95
13.6
2000
485
7.2
413
5.2
360
4.2
3000
190
34.2
164
25.8
142
18.9
3000
719
10.4
621
7.9
538
5.8
4000
255
38.2
218
28.5
190
22.5
4000
965
11.6
825
8.7
719
6.9
Volume Water Heater Flow Requirements
MagnaTherm Electrical Options
Temp Rise
Flow
Head Loss
Grains
°F (°C)
GPM (LPM)
Feet (m)
per Gallon
2000
3000
4000
2000
3000
4000
2000
20 (12)
177 (670)
43.9 (13.4)
10
22.6
N/A
N/A
15.1
N/A
N/A
3000
25 (14)
220 (833)
46 (14)
10
11.3
N/A
N/A
8.8
N/A
N/A
4000
30 (17)
266 (1006) 41.2 (12.6)
10
12.7
19.4
19.4
7
12.5
13
6.2
8.7
8.7
3.2
5
4.8
4.5
5.9
5.9
2.8
4
4.4
Current (Nominal)
Shipping Weight
Size
Size
Size
Size
Input Rate
Output Rate
Product Weight Operating Weight
Size
A
B
C
D
temperature rise in °C
temperature rise in °f
600V Three Phase
Current (FLA)
120V Single Phase
240V Single Phase
208V Three Phase
480V Three Phase
Voltage
Output Rate
17°C
19°C
22°C
30°f
35°f
40°f
*
*
*
*
*
Water Flow Requirements (for water heater submittal)
Model
Flow Rate Temp Rise
Headloss
Flow Rate Temp Rise Headloss
Flow Rate
Temp Rise
Headloss
Flow Rate Temp Rise
Headloss
GPM
°F
Ft
LPM
°C
m
GPM
°F
Ft
LPM
°C
m
2000
152
25
33.0
575
14
10.1
177
21
43.9
670
12
13.4
3000
190
30
36.0
719
17
11.0
220
26
46.0
833
14
14
4000
224
34
30.0
848
19
9.1
266
29
41.2
1007
16
12.6
Allowable pH: 6.5 to 9.5
Headloss is for the heater only (no piping)
Water Hardness
1-10 grains per gallon
Water Hardness
11-15 grains per gallon
Water Flow Requirements (for water heater submittal)
Model
Flow Rate Temp Rise
Headloss
Flow Rate Temp Rise Headloss
Flow Rate
Temp Rise
Headloss
Flow Rate Temp Rise
Headloss
GPM
°F
Ft
LPM
°C
m
GPM
°F
Ft
LPM
°C
m
2000
152
25
33.0
575
14
10.1
177
21
43.9
670
12
13.4
3000
190
30
36.0
719
17
11.0
220
26
46.0
833
14
14
4000
224
34
30.0
848
19
9.1
266
29
41.2
1007
16
12.6
Allowable pH: 6.5 to 9.5
Headloss is for the heater only (no piping)
Water Hardness
1-10 grains per gallon
Water Hardness
11-15 grains per gallon
Water Flow Requirements (for water heater submittal)
Model
Flow Rate Temp Rise
Headloss
Flow Rate Temp Rise Headloss
Flow Rate
Temp Rise
Headloss
Flow Rate Temp Rise
Headloss
GPM
°F
Ft
LPM
°C
m
GPM
°F
Ft
LPM
°C
m
2000
152
25
33.0
575
14
10.1
177
21
43.9
670
12
13.4
3000
190
30
36.0
719
17
11.0
220
26
46.0
833
14
14
4000
224
34
30.0
848
19
9.1
266
29
41.2
1007
16
12.6
Allowable pH: 6.5 to 9.5
Headloss is for the heater only (no piping)
Water Hardness
1-10 grains per gallon
Water Hardness
11-15 grains per gallon
*
*
*
*
table 10. Boiler flow and Head requirements
table 11. Water Heater flow and Head requirements
