EHC Basic Compact All In One 15kW Electric Boiler & 250L Indirect Unvented Hot Water Cylinder

Key Features

• 250L indirect unvented hot water cylinder — supplies hot water for showers, baths, and sinks
• 14.4 kW boiler output — reheats water in approximately 1 hour
• Digital display on boiler — set temperature, and see current water temperature and error codes
• Power stage indicator on boiler — shows the boiler's current operating stage
• Pre-plumbed and pre-assembled hot water cylinder — for simpler installation
• Grundfos pump and copper press fittings — built for durability
• Zoned heating control — 2 x 22mm zone valves help with insulation
• Stainless steel cylinder with polyurethane installation — retains water temperature
• 70 kg empty weight — cylinder weighs 320 kg once full to the 250L capacity

Guarantee

• 5 years

What's Included

• 14.4 kW Heat-only electric boiler
• 250L Pre-plumbed cylinder
• Inlet control set
• Tundish
• Temperature & pressure-relief valve
• 3 kW Immersion heater
• 2x 2-Port zone valve
• Grundfos circulation pump
• System expansion vessel
• 3-Bar pressure-relief valve
• Dual cylinder stat
• Filling loop
• Automatic bypass valve
• 2x Auto air vent
• DHW expansion vessel (loose)

The CAIO15/250IND-B all-in-one package combines a 250L hot water cylinder with a 14.4 kW electric system boiler, providing reliable central heating and a steady supply of hot water in a fully integrated, factory-assembled unit. Its compact and efficient design makes it an excellent choice for medium-sized homes seeking a quiet, low-maintenance, and space-saving alternative to traditional heating systems.

Pre-Plumbed and Pre-Assembled Hot Water Cylinder

This unvented cylinder is supplied pre-assembled and pre-plumbed, complete with two 22 mm zone valves and standard pipework connections. The factory-fitted design reduces installation time and simplifies plumbing, enabling installers to fit the system quickly and efficiently.

14.4 kW Electric System Boiler with Digital Display

The 14.4 kW boiler heats the 250L cylinder efficiently, typically reaching the desired temperature within around 1 hour, depending on the starting water temperature.

A digital display allows precise temperature control and shows live readings along with any error codes. The + / − buttons make adjusting the temperature simple, while the power stage indicator indicates whether the boiler is operating at 1/3, 2/3, or full capacity.

Grundfos Circulation Pump

The integrated Grundfos pump ensures efficient circulation of hot water throughout the system, maintaining consistent temperatures across the home. Its quiet operation makes it particularly suitable for living areas.

Copper Press Fittings

Copper press fittings provide secure, leak-proof joints using press-fit technology, removing the need for soldering or brazing. Copper’s natural corrosion resistance ensures plumbing remains durable and long-lasting.

Stainless Steel Cylinder with Polyurethane Insulation

The stainless steel cylinder resists corrosion, helping to prevent leaks and extend the unit’s lifespan. It is also less susceptible to scaling or pitting, making it suitable for areas with variable water quality.

Polyurethane insulation minimises standby heat loss, keeping water hot for longer, improving energy efficiency, and helping to reduce running costs.

Why Choose This Combination

The 250L indirect unvented cylinder paired with the 14.4 kW electric system boiler provides a compact and reliable heating solution for medium-sized homes. It delivers plenty of hot water for showers, baths, and sinks, ensuring a consistent supply whenever it’s needed.

Order today for a ready-to-install, energy-efficient, and space-saving heating system, with fast delivery and minimal installation effort.