Strom 11kW Single Phase Electric System Boiler SBSP11S
The Strom 11kW Single Phase Electric System Boiler is the self-contained electric heating solution built for medium to large homes. Unlike a heat-only boiler, this unit arrives with an integrated pump and expansion vessel already installed — making it faster to fit and easier to commission. Pair it with an indirect hot water cylinder for a complete, flue-free heating system that runs on 100% electrical efficiency with zero carbon monoxide at point of use.
This boiler must be installed by a qualified electrician who is a member of a competent persons scheme. A Part P electrical installation certificate is legally required upon completion of any new circuit. Heating pipework must be designed and commissioned by a qualified plumber or heating engineer in accordance with current Building Regulations.
This is a central heating-only boiler. It does not supply domestic hot water directly. An indirect hot water cylinder is required for hot water. The pump and expansion vessel are built in, but you will still need to supply: isolation valves, automatic bypass valve, zone valves (if required), and external heating controls (programmer and room thermostat).
The pump and expansion vessel are factory-fitted inside the unit, reducing on-site labour and the number of external components to specify. This makes the Strom System Boiler significantly quicker to install than a heat-only alternative.
A clear touchscreen display provides at-a-glance system status including flow and return temperatures, pump status, frost protection mode and fault codes — giving engineers and homeowners full visibility without removing any panels.
Strom's patented heat exchanger design distributes heat evenly across the full element surface, eliminating hot spots that cause limescale and corrosion. Multiple heating strands reduce stress on individual components and significantly extend element life.
No flue, no combustion, no carbon monoxide — this boiler can be installed in virtually any room. Minimal moving parts keep noise levels negligible, making it ideal for living spaces, utility rooms and airing cupboards alike.
Designed to work with solar PV divert controllers, surplus generation from your panels can power your heating — reducing running costs further. The wide flow temperature range (20–80 °C) also makes this boiler fully compatible with underfloor heating systems.
Every kilowatt drawn from the supply converts directly to useful heat — no flue losses, no standing pilot flame. Pair with a green electricity tariff or Economy 10 to maximise savings against oil or LPG alternatives.
An onboard frost-protection mode activates automatically to safeguard the boiler and system pipework in cold conditions. For installations in unheated outbuildings, an external frost stat wired inline is also recommended.
The fully modular component layout means individual parts — including the heating element — can be replaced without swapping the whole unit. This keeps long-term service costs low and maximises the working life of the installation.
| Model / SKU | Strom SBSP11S |
| Heat Output | 11 kW |
| Phase / Voltage | Single Phase — 230 VAC |
| Current Draw @ 230 VAC | 55 A |
| Minimum MCB / RCB Breaker | 63 A |
| Minimum Cable Size | 10 mm² |
| Heating Temperature Range | 20 °C – 80 °C |
| Heating Pressure Range | 0.5 – 1.5 Bar |
| Heating Flow & Return Connection | ¾" Male BSP (flexi hoses or push-fit irons recommended) |
| PRV Connection Size | 15 mm Compression |
| Dimensions (H × W × D) | 700 × 425 × 260 mm (including wall bracket) |
| Weight | 20 kg |
| ERP Rating (Heating) | D |
| EAN | 5060797570142 |
| Warranty | 5 years when registered at www.stromltd.com/guarantee within 45 days of purchase |
| What's in the Box | System boiler, wall fixings & mounting guide, installation manual |
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Strom 11kW Single Phase Electric System Boiler SBSP11S
The Strom 11kW Single Phase Electric System Boiler is the self-contained electric heating solution built for medium to large homes. Unlike a heat-only boiler, this unit arrives with an integrated pump and expansion vessel already installed — making it faster to fit and easier to commission. Pair it with an indirect hot water cylinder for a complete, flue-free heating system that runs on 100% electrical efficiency with zero carbon monoxide at point of use.
This boiler must be installed by a qualified electrician who is a member of a competent persons scheme. A Part P electrical installation certificate is legally required upon completion of any new circuit. Heating pipework must be designed and commissioned by a qualified plumber or heating engineer in accordance with current Building Regulations.
This is a central heating-only boiler. It does not supply domestic hot water directly. An indirect hot water cylinder is required for hot water. The pump and expansion vessel are built in, but you will still need to supply: isolation valves, automatic bypass valve, zone valves (if required), and external heating controls (programmer and room thermostat).
The pump and expansion vessel are factory-fitted inside the unit, reducing on-site labour and the number of external components to specify. This makes the Strom System Boiler significantly quicker to install than a heat-only alternative.
A clear touchscreen display provides at-a-glance system status including flow and return temperatures, pump status, frost protection mode and fault codes — giving engineers and homeowners full visibility without removing any panels.
Strom's patented heat exchanger design distributes heat evenly across the full element surface, eliminating hot spots that cause limescale and corrosion. Multiple heating strands reduce stress on individual components and significantly extend element life.
No flue, no combustion, no carbon monoxide — this boiler can be installed in virtually any room. Minimal moving parts keep noise levels negligible, making it ideal for living spaces, utility rooms and airing cupboards alike.
Designed to work with solar PV divert controllers, surplus generation from your panels can power your heating — reducing running costs further. The wide flow temperature range (20–80 °C) also makes this boiler fully compatible with underfloor heating systems.
Every kilowatt drawn from the supply converts directly to useful heat — no flue losses, no standing pilot flame. Pair with a green electricity tariff or Economy 10 to maximise savings against oil or LPG alternatives.
An onboard frost-protection mode activates automatically to safeguard the boiler and system pipework in cold conditions. For installations in unheated outbuildings, an external frost stat wired inline is also recommended.
The fully modular component layout means individual parts — including the heating element — can be replaced without swapping the whole unit. This keeps long-term service costs low and maximises the working life of the installation.
| Model / SKU | Strom SBSP11S |
| Heat Output | 11 kW |
| Phase / Voltage | Single Phase — 230 VAC |
| Current Draw @ 230 VAC | 55 A |
| Minimum MCB / RCB Breaker | 63 A |
| Minimum Cable Size | 10 mm² |
| Heating Temperature Range | 20 °C – 80 °C |
| Heating Pressure Range | 0.5 – 1.5 Bar |
| Heating Flow & Return Connection | ¾" Male BSP (flexi hoses or push-fit irons recommended) |
| PRV Connection Size | 15 mm Compression |
| Dimensions (H × W × D) | 700 × 425 × 260 mm (including wall bracket) |
| Weight | 20 kg |
| ERP Rating (Heating) | D |
| EAN | 5060797570142 |
| Warranty | 5 years when registered at www.stromltd.com/guarantee within 45 days of purchase |
| What's in the Box | System boiler, wall fixings & mounting guide, installation manual |
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Description
The Strom 11kW Single Phase Electric System Boiler is the self-contained electric heating solution built for medium to large homes. Unlike a heat-only boiler, this unit arrives with an integrated pump and expansion vessel already installed — making it faster to fit and easier to commission. Pair it with an indirect hot water cylinder for a complete, flue-free heating system that runs on 100% electrical efficiency with zero carbon monoxide at point of use.
This boiler must be installed by a qualified electrician who is a member of a competent persons scheme. A Part P electrical installation certificate is legally required upon completion of any new circuit. Heating pipework must be designed and commissioned by a qualified plumber or heating engineer in accordance with current Building Regulations.
This is a central heating-only boiler. It does not supply domestic hot water directly. An indirect hot water cylinder is required for hot water. The pump and expansion vessel are built in, but you will still need to supply: isolation valves, automatic bypass valve, zone valves (if required), and external heating controls (programmer and room thermostat).
The pump and expansion vessel are factory-fitted inside the unit, reducing on-site labour and the number of external components to specify. This makes the Strom System Boiler significantly quicker to install than a heat-only alternative.
A clear touchscreen display provides at-a-glance system status including flow and return temperatures, pump status, frost protection mode and fault codes — giving engineers and homeowners full visibility without removing any panels.
Strom's patented heat exchanger design distributes heat evenly across the full element surface, eliminating hot spots that cause limescale and corrosion. Multiple heating strands reduce stress on individual components and significantly extend element life.
No flue, no combustion, no carbon monoxide — this boiler can be installed in virtually any room. Minimal moving parts keep noise levels negligible, making it ideal for living spaces, utility rooms and airing cupboards alike.
Designed to work with solar PV divert controllers, surplus generation from your panels can power your heating — reducing running costs further. The wide flow temperature range (20–80 °C) also makes this boiler fully compatible with underfloor heating systems.
Every kilowatt drawn from the supply converts directly to useful heat — no flue losses, no standing pilot flame. Pair with a green electricity tariff or Economy 10 to maximise savings against oil or LPG alternatives.
An onboard frost-protection mode activates automatically to safeguard the boiler and system pipework in cold conditions. For installations in unheated outbuildings, an external frost stat wired inline is also recommended.
The fully modular component layout means individual parts — including the heating element — can be replaced without swapping the whole unit. This keeps long-term service costs low and maximises the working life of the installation.
| Model / SKU | Strom SBSP11S |
| Heat Output | 11 kW |
| Phase / Voltage | Single Phase — 230 VAC |
| Current Draw @ 230 VAC | 55 A |
| Minimum MCB / RCB Breaker | 63 A |
| Minimum Cable Size | 10 mm² |
| Heating Temperature Range | 20 °C – 80 °C |
| Heating Pressure Range | 0.5 – 1.5 Bar |
| Heating Flow & Return Connection | ¾" Male BSP (flexi hoses or push-fit irons recommended) |
| PRV Connection Size | 15 mm Compression |
| Dimensions (H × W × D) | 700 × 425 × 260 mm (including wall bracket) |
| Weight | 20 kg |
| ERP Rating (Heating) | D |
| EAN | 5060797570142 |
| Warranty | 5 years when registered at www.stromltd.com/guarantee within 45 days of purchase |
| What's in the Box | System boiler, wall fixings & mounting guide, installation manual |
