Overall Key Features

• Installation kit designed for seamless integration — with EHS Flex electric combi boilers
• Complete solution for EHS boiler setups — everything you need for installation

Boiler Key Features

• 14kW heat output — provides continuous hot water and heating
• Ideal for homes with access to gas — uses electricity as a fuel source
• Provides zero carbon monoxide emission or gas — environmentally friendly and no mandatory annual gas certification
• Doesn't require a flue — flexible installation
• Can be integrated with Solar PV systems and underfloor heating — for more options
• Touchscreen interface — easy to make adjustments
• Pre-wired — easier installation
• Silent operation — can be installed in the bedroom
• Continuous hot water — flow rates up to 7 I/min
• Designed for single-phase 230V installations — delivers 61 amps of power
• Impressive infrastructure — built-in expansion vessel (5L) and integrated pump

Thermostat Key Features

• Programmable — 24-hour, 5/2-day, and 7-day selections
• Uses OpenTherm® technology — for precise temperature management
• Multiple control modes — control up to 6 zones
• Lockable keypad — prevents unauthorised use
• Manual and boost functions — for immediate control
• Stand/wall-mounting installation — flexible installation
• 5–35°C temperature range — adjustable to suit you

Fernox Cleaner F3 System Cleaner Key Features

• Removes sludge, limescale and debris from heating systems — eliminates boiler noise and improves efficiency
• One 500ml bottle treats a 130-litre system — up to 16 radiators or 250 sqm of underfloor heating
• Non-hazardous product — compatible with all metals commonly used in heating systems

Fernox Protector F1 Inhibitor Key Features

• Protects against corrosion and limescale build-up — for long-lasting heating efficiency
• One 500ml bottle treats a 130-litre system — up to 16 radiators or 250 sqm of underfloor heating
• Stops frequent venting of radiators and prevents cold spots — prevents boiler noise

Guarantee

• 7 years (boiler has 5 years as standard)

What's Included

• EHS Flex electric combi boiler 14kW - ALC1-1PCO-14FB
• EPH RF programmable thermostat
• EPH wireless receiver
• Fernox TF1 Sigma mini filter
• Fernox protector F1 inhibitor
• Fernox F3 system cleaner
• WRAS-approved filling loop
• Automatic bypass valve
• 4 x isolation valves
• Cold supply flow restrictor

This boiler pack brings together the EHS Flex electric combi boiler, an EPH RF programmable thermostat, EPH wireless receiver, and a range of accessories designed to support installation and help extend the boiler’s lifespan.

EHS Flex Electric Combi Boiler

The EHS Flex electric combi boiler provides 14kW of heating and hot water, making it well suited to one-bedroom flats — especially homes without mains gas, or those with low heat loss but higher hot water demand. It runs at 61 amps and offers a flow temperature range between 20°C and 80°C.

As it’s fully electric, there’s no carbon monoxide produced, so you won’t need a flue. That helps improve indoor air quality and removes the need for annual gas safety checks. Its flue-less design also gives you more flexibility when choosing where to install it, as it doesn’t have to go on an external wall.

It comes pre-wired to make installation more straightforward, and includes a built-in 5L expansion vessel along with an integrated pump. For better control and efficiency, it’s best paired with an RF or Wi-Fi programmable thermostat.

EPH RF Programmable Thermostat

The EPH RF thermostat offers flexible scheduling options, including 24-hour, 5/2-day, and 7-day programmes to suit different routines. Using OpenTherm® technology, it delivers accurate temperature control and can manage up to six heating zones across your home.

It also features a lockable keypad to prevent unwanted adjustments, along with manual and boost functions so you can make temporary changes without disrupting your set programme. (You’ll find full details in the datasheet.)

Treatment Pack Contents

The included accessories are there to support both installation and long-term performance of the EHS Flex boiler.

Designed for single-phase systems, this central heating treatment kit provides a practical all-in-one solution for installing your electric combi boiler.

Shop Yours Today

Add this complete boiler pack to your basket today — it’s got everything you need for reliable heating and hot water, along with smart controls and installation essentials to keep things running smoothly.