Portable Electric Heaters

Buy Portable Electric Heaters at Low Prices

Whether you need extra warmth at home, a reliable heating solution for your workspace, or a portable option you can move from room to room, portable electric heaters offer a flexible and cost-effective answer.

At Alert Electrical, we stock a comprehensive range of portable heaters from trusted brands including AirMaster, dexPro, Dimplex, and ENER-J Smart Home.

Which Type of Portable Heater is Right for You?

Portable electric heaters come in several different forms, each suited to different needs and environments. Here's a quick guide to help you choose:

Oil-Filled Radiators - Oil-filled radiators use an electrical current to heat thermal oil, which then circulates around the unit — working in a similar way to a traditional central heating radiator. They are quiet, energy-efficient, and ideal for maintaining a steady, comfortable temperature over longer periods.

Convector Heaters - Convector heaters work by drawing in cool air, heating it via an internal element, and allowing the warm air to rise and circulate naturally throughout the room. They heat evenly and efficiently, making them a popular choice for living rooms and bedrooms.

Fan Heaters - Electric fan heaters heat up quickly and distribute warmth rapidly throughout a room using a built-in fan. They are lightweight, easy to move, and ideal for situations where you need heat fast — though they do produce some operational noise.

Choosing the Right Wattage

When selecting a portable electric heater, it's important to consider the size of the room you're heating. As a general rule, the higher the wattage, the greater the heat output. A lower wattage model may be sufficient for a small room or office, while larger spaces will benefit from a higher wattage unit.

Buy Portable Electric Heaters at Alert Electrical

At Alert Electrical, we offer one of the UK's most comprehensive selections of portable electric heaters, with products from Dimplex — one of the most trusted names in electric heating — alongside innovative ranges from AirMaster, dexPro, and ENER-J Smart Home. All orders come with fast UK delivery and competitive pricing across the full range.

Frequently Asked Questions

Which portable heater is most energy efficient?

Oil-filled radiators are generally considered the most energy-efficient option for longer-term heating, as they retain heat well and maintain a steady temperature without continuous power draw. Dimplex and ENER-J Smart Home both offer highly rated energy-efficient models within our range.

What size portable heater do I need?

As a general guide, you'll need approximately 1kW of heating power for every 10 square metres of floor space. For smaller rooms up to 10m², a 1kW heater should be sufficient. For larger spaces, look for models in the 2–3kW range. Browse our full range of AirMaster and dexPro heaters to find the right wattage for your needs.

Can portable electric heaters be used as a primary heat source?

Yes, portable electric heaters can be used as a primary heat source in smaller spaces or well-insulated rooms. However, they are most commonly used as a supplementary heating solution alongside central heating, or as a temporary option during colder periods.