Electric combi boiler – STB/DTB series
Inquire NowElectric combi boiler – STB/DTB series
STB/DTB are the newest members of Thermoflow water heating product series. Just like the Compact model, we aim to allow maximum flexibility in terms of power range with this model. To further explore the functionality of this unit, it is designed to have two sets of completely separate water heating systems: one to power central heating and the other for domestic hot water usage. It can be a powerhouse which fuels the entire hydronic system, or supply warm water to make doing dishes no longer a tedious chore.
Features
1.Dual heating system
2.LCD display and touch control
3.Rigid casing for maximum protection
4.Schedule selections system
5.Anti-freeze mode
6.Heat preservation mode
7.Built in pump
Technical Specification
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Model |
STB 6/9/12 |
DTB 12/15/18/21/24 |
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Voltage |
230 V / 400 V |
400 V |
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Phase |
1~ / 3~ |
3~ |
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Frequency |
50 Hz |
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Power |
6 kW |
9 kW |
12 kW |
12 kW |
15 kW |
18 kW |
21 kW |
24kW |
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Current (A) |
26 / 9 |
39 / 13 |
17 |
17 |
22 |
26 |
30 |
35 |
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Cable size (mm2) |
4 / 3*1.5 |
6 / 3*2.5 |
3*2.5 |
3*2.5 |
3*2.5 |
3*4 |
3*6 |
3*6 |
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Circuit breaker (A) |
32 / 16 |
50 / 16 |
25 |
25 |
25 |
32 |
40 |
40 |
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Heating area (m2) |
60 |
90 |
120 |
120 |
150 |
180 |
210 |
240 |
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Efficiency |
99% |
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MAX. Water Temperature |
80?C |
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Working temperature |
radiator mode 30-80 ?C (default 65 ?C) |
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floor heating mode 30-60 ?C (default 50 ?C) |
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domestic hot water 35-70 ?C (default 50 ?C) |
domestic hot water 35-60 ?C (default 42 ?C) |
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Anti-freeze Start Temperature |
<7 ?C |
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Anti-freeze Stop temp. |
≥10 ?C |
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Output Voltage of Pump |
230 V, 0.5 A |
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Capacity of Expansion Tank |
6 L |
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Inlet & Outlet Connection |
G3/4″ |
G3/4” for heating, G1/2” for domestic hot water |
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Net Weight |
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Product Size |
660 x 402 x 250mm |
710 x 452 x 250mm |
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