Strom 18kW Electric Combi Boiler Three Phase Instant Hot Water & Heating SBTP18C
Strom 18kW Electric Combi Boiler – Three Phase (SBTP18C) — High-output electric combi boiler delivering central heating & instant hot water up to 9 l/min | 18 kW output on 400 V three-phase | Touchscreen controls & LED display | Integrated pump & expansion vessel | No flue, no carbon monoxide risk | Near-silent operation | Solar-compatible & underfloor heating ready | 5-year warranty (registration required) | Ideal for larger homes, multiple bathrooms or high-demand properties
Runs on standard three-phase 400 V supply (32 A breaker per phase, 6 mm² cable recommended). No gas supply or flue needed — zero CO risk. High DHW flow rate suits properties with 2–4 bathrooms or high simultaneous demand. Compatible with solar PV diverters & Economy 10 tariffs for maximum savings.
The Strom 18kW Electric Combi Boiler (SBTP18C) is a powerful, all-electric combi unit that provides reliable central heating and instant domestic hot water without the need for a separate cylinder, hot water tank or gas connection. With 18 kW output on three-phase 400 V, it delivers up to 9 litres per minute of hot water at a 30 °C rise — ideal for larger family homes, properties with multiple bathrooms, high-flow showers or demanding simultaneous usage.
Featuring advanced touchscreen digital controls with LED display, high-efficiency serpentine heating elements, integrated circulation pump and expansion vessel, the boiler operates near-silently (15 dB sound pressure level) thanks to minimal moving parts. No flue or chimney required — completely emission-free and carbon monoxide safe. Fully compatible with solar PV systems (via diverter), underfloor heating, and smart tariffs (Economy 10), it offers a modern, low-maintenance, future-proof heating solution for homes transitioning away from gas or oil, especially those already equipped with three-phase supply.
What Makes the Strom 18kW Electric Combi Special?
- Instant Hot Water & Heating in One Unit — Combi design eliminates need for hot water cylinder — saves space & installation costs.
- Flue-Free & Zero Emissions — No gas, no flue, no CO risk — safe for any property, including new-builds or urban retrofits.
- Near-Silent Operation — Only 15 dB — quieter than a whisper — ideal for installation near living areas or bedrooms.
- Touchscreen Controls — Intuitive digital interface for precise temperature adjustment, scheduling & status monitoring.
- Integrated Pump & Vessel — All-in-one system — simplifies plumbing & reduces external components.
- Solar & Economy Tariff Ready — Pair with PV diverter or Economy 10 for significantly reduced running costs.
- 5-Year Warranty — Register online for full coverage — long-term peace of mind.
Key Features
Technical Specifications
| Specification | Value |
|---|---|
| MPN / SKU | SBTP18C |
| EAN | 5060797570044 |
| Power Output | 18 kW |
| Power Supply | 400 V AC, Three Phase |
| Current Draw | 26 A per phase |
| Recommended Breaker | 32 A per phase |
| Recommended Cable Size | 6 mm² per phase |
| Heating Pressure Range | 0.5 – 1.5 bar |
| Max DHW Pressure | 6.0 bar |
| Max Flow Temperature | 80 °C |
| DHW Flow Rate @ 30 °C Rise | 9 l/min |
| Connections | Heating: 3/4" Male, PRV: 1/2" Female |
| Dimensions (H × W × D) | 700 × 425 × 260 mm |
| Weight | 20 kg |
| Sound Pressure Level | 15 dB |
| ErP Rating (Heating / DHW) | D / A |
| Warranty | 5 years (registration required) |
What's in the Box
✅ Installation by qualified electrician/plumber per BS 7671 & building regulations. Recommended 32 A breaker per phase & 6 mm² cable. Compatible with solar PV diverters, Economy 10 tariffs, underfloor heating & most UK domestic systems. Register online for full 5-year warranty. No flue or gas supply required — zero CO risk.
Frequently Asked Questions
Original: $2,112.23
-65%$2,112.23
$739.28More Images
Strom 18kW Electric Combi Boiler Three Phase Instant Hot Water & Heating SBTP18C
Strom 18kW Electric Combi Boiler – Three Phase (SBTP18C) — High-output electric combi boiler delivering central heating & instant hot water up to 9 l/min | 18 kW output on 400 V three-phase | Touchscreen controls & LED display | Integrated pump & expansion vessel | No flue, no carbon monoxide risk | Near-silent operation | Solar-compatible & underfloor heating ready | 5-year warranty (registration required) | Ideal for larger homes, multiple bathrooms or high-demand properties
Runs on standard three-phase 400 V supply (32 A breaker per phase, 6 mm² cable recommended). No gas supply or flue needed — zero CO risk. High DHW flow rate suits properties with 2–4 bathrooms or high simultaneous demand. Compatible with solar PV diverters & Economy 10 tariffs for maximum savings.
The Strom 18kW Electric Combi Boiler (SBTP18C) is a powerful, all-electric combi unit that provides reliable central heating and instant domestic hot water without the need for a separate cylinder, hot water tank or gas connection. With 18 kW output on three-phase 400 V, it delivers up to 9 litres per minute of hot water at a 30 °C rise — ideal for larger family homes, properties with multiple bathrooms, high-flow showers or demanding simultaneous usage.
Featuring advanced touchscreen digital controls with LED display, high-efficiency serpentine heating elements, integrated circulation pump and expansion vessel, the boiler operates near-silently (15 dB sound pressure level) thanks to minimal moving parts. No flue or chimney required — completely emission-free and carbon monoxide safe. Fully compatible with solar PV systems (via diverter), underfloor heating, and smart tariffs (Economy 10), it offers a modern, low-maintenance, future-proof heating solution for homes transitioning away from gas or oil, especially those already equipped with three-phase supply.
What Makes the Strom 18kW Electric Combi Special?
- Instant Hot Water & Heating in One Unit — Combi design eliminates need for hot water cylinder — saves space & installation costs.
- Flue-Free & Zero Emissions — No gas, no flue, no CO risk — safe for any property, including new-builds or urban retrofits.
- Near-Silent Operation — Only 15 dB — quieter than a whisper — ideal for installation near living areas or bedrooms.
- Touchscreen Controls — Intuitive digital interface for precise temperature adjustment, scheduling & status monitoring.
- Integrated Pump & Vessel — All-in-one system — simplifies plumbing & reduces external components.
- Solar & Economy Tariff Ready — Pair with PV diverter or Economy 10 for significantly reduced running costs.
- 5-Year Warranty — Register online for full coverage — long-term peace of mind.
Key Features
Technical Specifications
| Specification | Value |
|---|---|
| MPN / SKU | SBTP18C |
| EAN | 5060797570044 |
| Power Output | 18 kW |
| Power Supply | 400 V AC, Three Phase |
| Current Draw | 26 A per phase |
| Recommended Breaker | 32 A per phase |
| Recommended Cable Size | 6 mm² per phase |
| Heating Pressure Range | 0.5 – 1.5 bar |
| Max DHW Pressure | 6.0 bar |
| Max Flow Temperature | 80 °C |
| DHW Flow Rate @ 30 °C Rise | 9 l/min |
| Connections | Heating: 3/4" Male, PRV: 1/2" Female |
| Dimensions (H × W × D) | 700 × 425 × 260 mm |
| Weight | 20 kg |
| Sound Pressure Level | 15 dB |
| ErP Rating (Heating / DHW) | D / A |
| Warranty | 5 years (registration required) |
What's in the Box
✅ Installation by qualified electrician/plumber per BS 7671 & building regulations. Recommended 32 A breaker per phase & 6 mm² cable. Compatible with solar PV diverters, Economy 10 tariffs, underfloor heating & most UK domestic systems. Register online for full 5-year warranty. No flue or gas supply required — zero CO risk.
Frequently Asked Questions
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Strom 18kW Electric Combi Boiler – Three Phase (SBTP18C) — High-output electric combi boiler delivering central heating & instant hot water up to 9 l/min | 18 kW output on 400 V three-phase | Touchscreen controls & LED display | Integrated pump & expansion vessel | No flue, no carbon monoxide risk | Near-silent operation | Solar-compatible & underfloor heating ready | 5-year warranty (registration required) | Ideal for larger homes, multiple bathrooms or high-demand properties
Runs on standard three-phase 400 V supply (32 A breaker per phase, 6 mm² cable recommended). No gas supply or flue needed — zero CO risk. High DHW flow rate suits properties with 2–4 bathrooms or high simultaneous demand. Compatible with solar PV diverters & Economy 10 tariffs for maximum savings.
The Strom 18kW Electric Combi Boiler (SBTP18C) is a powerful, all-electric combi unit that provides reliable central heating and instant domestic hot water without the need for a separate cylinder, hot water tank or gas connection. With 18 kW output on three-phase 400 V, it delivers up to 9 litres per minute of hot water at a 30 °C rise — ideal for larger family homes, properties with multiple bathrooms, high-flow showers or demanding simultaneous usage.
Featuring advanced touchscreen digital controls with LED display, high-efficiency serpentine heating elements, integrated circulation pump and expansion vessel, the boiler operates near-silently (15 dB sound pressure level) thanks to minimal moving parts. No flue or chimney required — completely emission-free and carbon monoxide safe. Fully compatible with solar PV systems (via diverter), underfloor heating, and smart tariffs (Economy 10), it offers a modern, low-maintenance, future-proof heating solution for homes transitioning away from gas or oil, especially those already equipped with three-phase supply.
What Makes the Strom 18kW Electric Combi Special?
- Instant Hot Water & Heating in One Unit — Combi design eliminates need for hot water cylinder — saves space & installation costs.
- Flue-Free & Zero Emissions — No gas, no flue, no CO risk — safe for any property, including new-builds or urban retrofits.
- Near-Silent Operation — Only 15 dB — quieter than a whisper — ideal for installation near living areas or bedrooms.
- Touchscreen Controls — Intuitive digital interface for precise temperature adjustment, scheduling & status monitoring.
- Integrated Pump & Vessel — All-in-one system — simplifies plumbing & reduces external components.
- Solar & Economy Tariff Ready — Pair with PV diverter or Economy 10 for significantly reduced running costs.
- 5-Year Warranty — Register online for full coverage — long-term peace of mind.
Key Features
Technical Specifications
| Specification | Value |
|---|---|
| MPN / SKU | SBTP18C |
| EAN | 5060797570044 |
| Power Output | 18 kW |
| Power Supply | 400 V AC, Three Phase |
| Current Draw | 26 A per phase |
| Recommended Breaker | 32 A per phase |
| Recommended Cable Size | 6 mm² per phase |
| Heating Pressure Range | 0.5 – 1.5 bar |
| Max DHW Pressure | 6.0 bar |
| Max Flow Temperature | 80 °C |
| DHW Flow Rate @ 30 °C Rise | 9 l/min |
| Connections | Heating: 3/4" Male, PRV: 1/2" Female |
| Dimensions (H × W × D) | 700 × 425 × 260 mm |
| Weight | 20 kg |
| Sound Pressure Level | 15 dB |
| ErP Rating (Heating / DHW) | D / A |
| Warranty | 5 years (registration required) |
What's in the Box
✅ Installation by qualified electrician/plumber per BS 7671 & building regulations. Recommended 32 A breaker per phase & 6 mm² cable. Compatible with solar PV diverters, Economy 10 tariffs, underfloor heating & most UK domestic systems. Register online for full 5-year warranty. No flue or gas supply required — zero CO risk.
