Bosch WST50 EL, WST80 EL, WST119 EL Technical Specifications
WST Domestic Hot Water
Indirect Storage Tanks
Our newest single coil, indirect DHW storage
tanks with capacities of 50, 80 and 119 gallons
WST, the new line of indirect domestic hot water storage
tanks, are available in 3 models with capacities ranging
from 50 to 119 gallons. Developed specically for the
North American market, the WST tanks were designed
for easy integration with Bosch or Buderus solar,
tankless, geothermal and boiler products.
Insulated tank design for low heat loss.
Electrically isolated heating element ensures
durability while providing high recovery rates.
Magnesium anode rod equalizes aggressive
water corrosion for prolonged tank life*.
Mounting brackets pre-installed for solar pump
station installation.
Warranty: limited lifetime tank and parts**.
WST Domestic Hot Water
Indirect Storage Tanks
Part Numbers & Pricing
Model WST50 EL WST80 EL WST119 EL
Part Number 8718541965 8718541966 8718541967
Description
List Price $1,645 $1,827 $2,100
Solar Coil Data (Type Enameled Steel)
Maximum Pressure= 116 psi / 8 bar
Maximum Temperature= 275°F / 135°C
Solar Tank Data
Maximum Pressure= 150 psi / 10.34 bar
Maximum Temperature= 203°F / 95°C
50 Gallon (188 L)
Single Coil Indirect with
4.5 kW Heating Element
Solar Coil (Heat Exchanger) Pressure Drop - Ft/H20 - (4.5 gpm) / mbar (17 l/min)
80 Gallon (300 L)
Single Coil Indirect with
4.5 kW Heating Element
119 Gallon (450 L)
Single Coil Indirect with
4.5 kW Heating Element
Head Loss (Feet)
Flow Rate
1 gpm 0.5 (15 L) 0.67 (20 L) 0.7 (20 L)
WST 50 /
50 Gallon (188 L)
WST 80 /
80 Gallon (300 L)
WST 119 /
119 Gallon (450 L)
Technical Specications Roughing in Dimensions Energy Information
WST
Models
WST 50
WST 80
WST 119
*** Height without storage tank feet.
Heater furnished with standard 240 volt AC, single phase non-simultaneous wiring and 4500
watt element. To prevent corrosion, proper pH levels in heat transfer uid must be
maintained. WST models meet all current state requirements for storage tanks.
Tank Capacity
(L)
50 gals
(188)
80 gals
(300)
119 gals
(450)
Coil Capacity
(L)
1.6 gals
(6)
2.2 gals
(8.5)
2.2 gals
(8.5)
Height ***
(mm)
45.2"
(1147)
50.6"
(1285)
61.9"
(1572)
Diameter
(mm)
23.6"
(600)
27.6"
(700)
29.5"
(750)
Approx. Shipping
Weight (kg)
234 lbs
(106)
320 lbs
(145)
428 lbs
(194)
First Hour Rating
(L)
45 gals
(170)
57 gals
(216)
74 gals
(280)
Features & Benets
Standby Heat Loss
(°C/h)
0.7 °F/h
(0.39)
0.6 °F/h
(0.32)
0.5 °F/h
(0.27)
All connections are clearly labeled with ttings located at front of tank for convenient installation.
Top domestic water connections spaced 8" apart for simplied retrot.
Ceramic tank lining resists corrosion & prolongs tank life.
Internal heat exchanger with large surface area for greater heat transfer.
Recirculation return connection.
* Anode rod maintenance required. See owners manual for further information.
** Limited warranty. Copies of original warranties in their entirety are available upon request. Please contact your area representative.
2 | WST Tanks Sell Sheet
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