EHS Primus 8000S Electric System Boiler
The EHS Primus 8000S Electric System Boiler is part of the versatile Primus S range, designed to deliver efficient and reliable home heating through either a wet central heating system or underfloor heating. As a direct replacement for a traditional gas system boiler, it connects seamlessly to your existing radiators and pipework — meaning no major changes or upgrades are required.
When paired with an unvented indirect cylinder, the Primus 8000S can also meet your hot water demands, making it suitable for everyday use in a wide variety of homes. Because it requires no flue and produces zero carbon monoxide, it offers safe, flexible siting anywhere within the property. With minimal moving parts, a sleek touch-screen interface, and compatibility with low-cost or fully renewable electricity tariffs, it’s an ideal choice for modern, efficient, and low-maintenance heating. The system also integrates perfectly with solar PV when used alongside a hot water cylinder.
Key Features
Pre-wired for fast and simple installation
Compatible with vented and unvented cylinders
Integrated pump and expansion vessel
Zero carbon monoxide risk — fully electric
No flue required for flexible siting
Stylish, intuitive touch-screen control
Minimal moving parts and no mandatory servicing
Ideal for use with solar PV systems
Suitable for off-peak and renewable electricity tariffs
Works with RF and WiFi programmable thermostats
Product Specifications
Manufacturer: Electric Heating Supplies
Model: Primus
MPN: ALC1-1PSY-8
SKU: 79865
GTIN: 5065008142119
Product Type: Electric System Boiler
Warranty: 5 Years (subject to manufacturer T&Cs)
Dimensions: 630mm (H) × 380mm (W) × 230mm (D)
Gross Weight: 21kg
CH Output: 8kW / 27,296 BTU
FAQs
Do I need to replace my radiators or pipework?
No — the Primus 8000S is a direct system boiler replacement and works with your existing heating infrastructure.
Can this boiler supply hot water as well?
Yes — when used with an unvented indirect cylinder, it can supply all your home’s hot water needs, even for multi-bathroom properties.
Does it require annual servicing?
There is no mandatory annual service because it’s fully electric and has very few moving parts, though occasional checks are recommended for optimal performance.
Check out our full range of plumbing supplies.
Browse more boilers available online.
