Brochure
LAARS-STOR
™
SS ENERGY SAVER
STAINLESS STEEL INDIRECT WATER HEATER
The Laars-Stor
™
SS utilizes a superior grade of stainless steel for the tank and the heat transfer coil.
This construction is lightweight and also resists pitting while minimizing inter-granular and stress
corrosion. The Laars-Stor
™
SS models provide superior thermal conductivity for higher efficiency.
• Stainless Steel Tank and Heat
Exchanger—Made from chromium
molybdenum - titanium ferritic 444
stainless steel alloy.
• Supply and Return Connections—
The
3
⁄4" NPT female connections are
located on the front for both the
boiler supply and boiler return
(1” NPT on LS-RTV-119).
• CFC Free Polystyrene Insulation—
Form fitted and molded, this system
contributes to greater heat retention,
improved overall efficiency and
reduced standby heat loss.
• Jacket—Corrosion and dent resistant
plastic casing.
• Stand-by Heat Loss—Less than
1
⁄2°F
per hour.
• Brass Drain/Return Valve.
• T&P Relief Valve Opening—
All models have special tapping on
top of tank.
• Warranty—Residential models have
a limited lifetime warranty on the
tank and heat exchanger. The LS-
RTV-119 is a commercial model and
is furnished with a 5 year warranty
on the tank and heat exchanger. For
more details please refer to the
complete copy of the warranty
included with the heater.
• Six Year Limited Warranty on Parts.
B
T&P
Valve
Opening
Hot
Water
Outlet
F
A
E
C
D
Notes: 1) Inlet water temperature based on 50°F.
2) LS-RTV-119 supplied with 3 extra plugged tappings (see manual).
3) LS-RTV-119 equipped with steel casing.
4)
3
⁄4" supply/return piping is recommended on heat source side.
Meets or exceeds the insulating standards established under ASHRAE Standard 90.1b (current edition).
General: All units are certified at 300 PSI (2068 kPa) test pressure and 150 PSI working pressure (1034 kPa).
All potable water connections are
3
⁄4" (19mm) NPT (1
1
⁄4" (32mm) NPT on LS-RTV-119).
Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.
—
—
—
—
—
—
—
—
39.6
51.3
74.5
118.9
LS-RTV-40-L
LS-RTV-52-L
LS-RTV-75-L
LS-RTV-119-L
38
47
3
/4
65
1
/2
62
96
121
166
157
60
60
60
79
18
18
18
26
23
3
/4
23
3
/4
23
3
/4
23
3
/4
7
1
/4
7
1
/4
7
1
/4
10
1
/4
29
29
29
42
69
70
71
113
11
1
/2
11
1
/2
11
1
/2
16
3
/4
83
93
117
315
38
42
53
142
—
—
—
—
27
1
/4
27
3
/4
28
44
3
/8
10
123
168
159
—
—
—
—
38
1
/2
48
1
/4
66
62
1
/2
Laars-Stor
™
SS
C
Cold
Supply
in. cm.
D
Boiler
Return
in. cm.
B
Diameter
in. cm.
A
Height
in. cm.
Capacity Supply
in. cm.
U.S.
Gal.
—
—
—
—
Imp.
Gal.
Model
Number
E
Boiler
Supply
in. cm.
F
Height to Hot
Water Outlet
in. cm.
Return
in. cm.
Shipping Weight
Approx.
lbs. kg.
4.43
5.91
5.91
17.4
LS-RTV-40-L
LS-RTV-52-L
LS-RTV-75-L
LS-RTV-119-L
7.64
10.01
10.01
21.31
11
11
11
15
136,000
173,000
190,000
252,000
5.3
8.7
8.7
3.1
Gross Boiler
Output
BTU/Hr
Pressure
Drop
(Ft. W. C.)
Boiler Flow
U.S. GPM
Heat
Surface
Area (ft
2
)Liters
1.17
1.56
1.56
4.60
U.S.
Gal.
Model
Number
Capacity Performance
Standby
Heat Loss
Rating
°F/Hr.
0.9
0.7
0.5
0.6
Continuous
Draw
@135°F
Gal./Hr.
133
165
165
280
First Hour
Delivery
Rating
Gal./Hr.
158
200
225
360
Minimum
Heat Source
Flow Rate
Gal./Min.
8.0
8.0
8.0
11.0
Minimum Heat
Required
Rate
BTU/Hr.
88,000
113,000
113,000
195,000
NOTE: These certified ratings were obtained with a heat source output and flow rate as specified and a 180°F boiler water supply temperature.