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Posted on 24th October 2023

An In-Depth Guide to Electric Boilers: Types, Benefits and Installation

As homeowners continually seek energy-efficient, eco-friendly, and cost-effective heating solutions, electric boilers have emerged as a popular alternative to traditional gas or oil-fired boilers. The simplicity, flexibility, and convenience offered by electric boilers make them a suitable choice for various residential properties, especially in areas where access to mains gas is limited. In this comprehensive guide, we will delve into the world of electric boilers, examining the different types, highlighting their benefits, and providing practical installation tips, equipping you to make an informed decision when selecting a heating solution for your home.

Electric boilers, like the EHC‘s range of Comet and SlimJim Electric Boiler models, offer a versatile, safe and reliable heating option. These boilers boast compact designs and require minimal maintenance, making them the ideal choice for homeowners seeking an efficient and fuss-free heating system. Furthermore, electric boilers produce no harmful emissions, contributing to a cleaner, greener home environment.

To provide clarity on the types of electric boilers available, we will explore conventional electric boilers, electric combi boilers, and electric system boilers, discussing their purposes and ideal applications. In addition, we will focus on the numerous advantages electric boilers hold over traditional alternatives, such as lower installation costs, reduced maintenance requirements, and flexible compatibility with renewable energy sources.

Finally, we will guide you through the essential aspects of electric boiler installation, including selecting the right size, hiring qualified professionals, adhering to building regulations, and safely connecting the boiler to your property’s electricity supply. By the end of this guide, you will comprehend the potential offered by electric boilers and be equipped with the knowledge to choose the best heating solution for your needs, backed by the expertise and high-quality products offered by The Electric Heating Company.

Types of Electric Boilers

1. Electric Boilers

Conventional electric boilers, also known as heat-only boilers, are typically used in conjunction with a hot water cylinder or thermal store to store and supply hot water to your home. These boilers heat the water using electric elements and then transfer it to a hot water cylinder, ensuring a stable supply of hot water when needed. Conventional electric boilers are ideal for properties with multiple bathrooms or higher hot water demands.

2. Electric Combi Boilers

Electric combi boilers are compact, all-in-one systems that combine both a boiler and a hot water cylinder into a single unit. By heating water directly from the mains as it is needed, they eliminate the need for a separate storage facility and offer instantaneous hot water supply. Electric combi boilers are best suited for smaller properties or homes with a lower hot water demand, where space-saving is a priority.

3. Electric Boiler & Cylinder Package

Electric system boilers are designed to work alongside a separate hot water cylinder and can be connected to a central heating system, much like conventional electric boilers. They are an excellent choice for properties that have a high hot water demand or require hot water across multiple points simultaneously.

Benefits of Electric Boilers

1. Energy Efficiency

As electric boilers convert all the electrical energy they consume into heat, they are considered 100% efficient and when used carefully, could contribute to lowered energy bills when compared to traditional boilers. Moreover, electric boilers do not require a flue, thereby eliminating heat loss that may occur through a venting system.

2. Environmentally Friendly

Electric boilers produce zero on-site carbon emissions, making them an eco-friendly heating option. Pairing an electric boiler with renewable energy sources such as solar panels or wind power can create a truly sustainable heating solution for your home.

3. Easy Installation

The absence of a flue or gas supply connection makes electric boiler installation simpler and more straightforward than traditional boilers. The compact size and lightweight design of electric boilers like EHC‘s Comet or SlimJim models can save valuable space and reduce installation costs.

4. Low Maintenance

Electric boilers have fewer moving parts than their traditional counterparts, resulting in a lower likelihood of breakdowns and reduced maintenance requirements. With no risk of carbon monoxide leaks, electric boilers are considered safer than gas or oil boilers.

5. Compatibility with Renewable Energy Sources

For homeowners looking to integrate renewable energy sources into their home heating systems, electric boilers are an ideal choice. They can be connected to solar panels or wind turbines when using the correct inverter  for a truly green and efficient heating solution.

Installation Essentials

1. Sizing the Boiler

When installing an electric boiler, it is crucial to select one with the correct capacity for your home. Consider factors such as your property’s size, heat loss, and hot water demands. Get in touch with us or a professional heating engineer or use an online calculator to determine the appropriate boiler size for your needs.

2. Hiring Qualified Professionals

The Electric Heating Company operates as a supply-only company and frequently receives inquiries regarding the selection of suitable personnel. To address this need, we have established a network of Accredited Heating Contractors (AHCs). These contractors have been carefully chosen and professionally trained by The Electric Heating Company to guarantee the smooth and accurate installation of EHC Electric Boilers and Electric Radiators. Nevertheless, we always advise customers to carry out the following research into any contractor: Check their credentials, and ask for references to verify the installer’s competence and reliability.

3. Adhering to Building Regulations

Ensure that your electric boiler installation complies with all of your relevant building regulations and safety standards. Your installer should be familiar with these requirements, and you should obtain any necessary permits or approvals before starting the installation process.

4. Connecting the Boiler to the Electricity Supply

An electric boiler requires a dedicated electrical supply, typically connected via a suitably rated circuit breaker. Consult a qualified electrician to determine the appropriate amperage and circuit specifications for your property.


Electric boilers offer a modern, efficient, and eco-friendly heating solution for various residential properties. By understanding the types of electric boilers, their benefits, and essential installation considerations, you can make a well-informed decision when selecting a heating system for your home. 

The Electric Heating Company is here to provide expert advice, an extensive range of high-quality electric boilers, and exceptional customer support, ensuring that your chosen heating system exceeds expectations for years to come. Embrace a cleaner, greener, and more cost-effective approach to heating your home with electric boilers from The Electric Heating Company.

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