EHS Primus 14000S 14KW Electric System Boiler

The EHS Primus 14000S Electric System Boiler is a 14kW single‑phase electric system boiler designed as a direct replacement for a gas system boiler in larger homes with wet central heating or underfloor heating systems.

Product Description

The Primus 14000S provides space heating via radiators or underfloor circuits and, when paired with an unvented indirect cylinder, can deliver high volumes of mains‑pressure hot water for multi‑bathroom properties. Running entirely on electricity, it requires no flue or gas supply, making it suitable for properties without gas and for use alongside low‑carbon tariffs or on‑site renewables.

Key Features

• 14kW single‑phase output: Sized for larger homes with higher heat demand and multiple radiators or UFH zones.
• Direct gas boiler replacement: Designed to integrate with existing pipework and radiators, minimising system alterations.
• Integrated components: Built‑in circulation pump and expansion vessel reduce the need for external system components.
• No flue or combustion: Zero flue, zero combustion products and no risk of gas or CO leaks.
• Quiet operation: Very low noise thanks to the absence of a burner and limited moving parts.
• Low servicing burden: No mandatory annual gas‑safety service; maintenance is simpler than for combustion boilers.

Technical Details

• Model name: EHS Primus 14000S Electric System Boiler (Primus S range).
• Nominal output: 14kW electric system boiler.
• Electrical supply: 230V, single‑phase, 50Hz (installer to size protective devices and cabling to manufacturer’s guidance).
• Boiler type: Electric system boiler for space heating, used with a separate indirect cylinder for DHW.
• Dimensions (H × W × D): 630mm × 380mm × 230mm.
• Mounting: Compact wall‑mounted unit with no flue positioning constraints.
• Warranty: 5‑year manufacturer’s warranty (subject to terms and conditions).

Controls & Compatibility

• Cylinder compatibility: Suitable for both vented and unvented indirect hot‑water cylinders.
• Controls: Works with RF or Wi‑Fi programmable thermostats and timers for temperature and time scheduling.
• Tariff optimisation: Can be programmed to operate against off‑peak or night‑rate tariffs to reduce running costs.