Electric Combi Boilers

Flexible heating for a renewable future

✓ Range rateable heating and hot water to match property requirements

✓ Easy to install

✓ Minimal servicing & repairs

✓ Flexible sighting – No flue required

✓ Works with existing radiators

✓ Power modulates from 2kW to full power using less energy

✓ Almost 100% efficient

Buy Flex Electric Combi Boilers

Primus Flex Electric Combi Boiler: Smart, Efficient & Adaptable Heating

The Primus Flex electric combi boiler is a revolutionary heating solution, offering homeowners and installers a versatile, efficient, and easy-to-install alternative to gas. Designed for small flats and homes with a single bathroom, it provides continuous hot water and heating without the need for a flue, gas supply, or major pipework changes. What makes the Primus Flex unique is its range-rated heating system. Unlike traditional boilers that operate at a fixed output, this system allows the boiler to be adjusted to the exact heating and hot water needs of the property. This means a single model can be set to the perfect power level, eliminating the need to choose between different boiler sizes. Homeowners benefit from precise, energy-efficient heating, reduced running costs, and compatibility with renewable energy tariffs, while installers enjoy a straightforward, pre-wired system that suits multiple applications with minimal effort. With whisper-quiet operation, no carbon monoxide risk, and effortless adaptability, the Primus Flex electric combi boiler delivers smart, future-proof heating for modern homes.

✓ Pre-wired for ease of installation

✓ Integrated pump and expansion vessel

✓ Continuous hot water (flow rates up to 7 I/min on 14.4kW boiler)

✓ Zero risk of carbon monoxide emission or gas leak

✓ No flue is required

✓ Range rateable heating and hot water to match property requirements

✓ Near silent in operation

✓ Minimal moving parts

✓ Minimal servicing required

✓ Flexible siting as no flue is required and it’s very compact in size

✓ Ideal for flats and properties with low heat loss, no access to gas, and high hot water demand

✓ Ability to use low cost and 100% renewable tariffs

✓ Recommended to be used with RF or WIFI programmable thermostats

✓ Can be integrated with Solar PV systems

Flex Electric Combi Boilers

Available in 14Kw or 24Kw

Buy Flex Electric Combi Boilers

Electric Combination Boiler Schematic

** Now available with our Electric Combi Boiler Installers Kit

Includes all necessary plumbing parts for easy installation and comes with a 2-year extended warranty!

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Electric Combi Fitters Kit

Everything you need to get the job done

We put this kit together so you have the right parts at the right time for the right price

✓ Sentinal Vortex 250Magnetic filter

✓ Sentinal X300 System Cleaner

✓ Sentinal X100 Inhibitor

✓ EPH Combi Pack 4

✓ WRAS Approved Filling Loop

✓ Automatic Bypass Valve

✓ 2 x 1/2″ & 2 x 3/4″ Isolation Valves

✓ Caleffi Flow valve 5ltr/min

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Installation Guides

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At EHS we recognise the growing demand for eco-friendly heating and hot water solutions.

Electric combi boilers can be run from electricity produced from renewable resources such as wind or solar power, which means that you can run your boiler completely free of CO2 emissions.

Moving to electricity is easy, as you don’t need to replace any of your existing pipework or radiators.

By 2050 the UK Government are aiming to generate 100% emission-free electricity. Electric Heating will be a major facilitator in reaching this goal, and in 2020 the Government pledged 40GW of wind-generated electricity in the UK by 2030. This is enough electricity to power every household in the UK!

Electricity prices are currently 3 times more than gas, but as gas is phased out and electricity becomes the fuel of choice, prices per unit of energy are likely to reach parity in the not-too-distant future, and as an electric boiler is 98% efficient, it will be cheaper to run.

By moving to electric heating with a renewable energy tariff, you’ll not only be moving to carbon-free heating but doing your bit for a renewable future!