Best Online Stores in the UK for Buying Electric Radiators for Small Spaces

Most people don’t realise how much they’re overpaying to heat a small room until the electricity bill lands. Electric radiators are genuinely one of the smarter ways to heat compact spaces, but getting the sizing wrong, say, dropping a 2,000W unit into a box bedroom, is an easy mistake that costs real money. After reviewing dozens of UK online stores across product range, warranty terms, customer service quality, and value for money, this guide covers the five retailers worth your time.

How this ranking was put together

Product listings, verified customer reviews, independent rating platforms, and official company websites were all examined to assess each option. Only retailers with a clear track record in electric heating were included. Platforms without a meaningful volume of real-world feedback were left off entirely.

→ See the full research breakdown

• Best Electric Radiators – Best for UK homeowners and landlords replacing gas heating with electric solutions
• The Electric Heating Company – Best for residential and commercial electric heating solutions
• Electric Radiator Direct – Best for heating solutions and electric radiator supply
• Only Radiators – Best for online HVAC radiator and heated towel rail retail
• Dimplex – Best for electric heating products and solutions

Why Electric Radiators Are Worth a Closer Look

Choosing the wrong electric radiator for a small space is a more expensive mistake than most people expect. Get the wattage too low and the room never reaches a comfortable temperature. Get it too high and you’re burning electricity you don’t need, which adds up fast when you’re comparing running costs against gas central heating.

The good news is that modern electric radiators have closed that gap considerably. Units with accurate thermostats (within ±1°C deviation) waste far less heat than older storage heaters, and the better retailers carry products with strong coefficient of performance ratings. Picking the right retailer matters because they’ll guide you on watts per square metre for your specific room, help you understand what you’ll realistically spend per month, and stock units with the certifications that confirm those claims are real.

Comparing the 5 Best Electric Radiators

Note: All data in this table is sourced from review platforms and the official websites of the listed companies.

Company Name	Years Operating	Headquartered In	Rating
Best Electric Radiators	Since 2012	UK	4.8/5 (Trustpilot)
The Electric Heating Company	Since 2005	Blantyre, Scotland	4.8/5 (Trustpilot)
Electric Radiator Direct	Since 2012	Wetherby, UK	Feefo Platinum Trusted Merchant
Only Radiators	Established	Dorset, UK	Excellent (Trustpilot)
Dimplex	Since 1949	Dublin, Ireland	Multiple Which? Best Buy Awards

1. Best Electric Radiators – Best for UK Homeowners and Landlords Replacing Gas Heating

How Is Best Electric Radiators Positioned in Its Industry?

Best Electric Radiators is a UK-based, online-only retailer with over eleven years of trading in electric heating. They carry electric radiators, towel rails, water heaters, and underfloor heating, and because they run without a physical showroom, the pricing stays noticeably competitive. Homeowners and landlords who want to shop electric radiators online from UK without overpaying for bricks-and-mortar overhead will find their range genuinely worth exploring. Their WiFi-enabled radiator options also make them a solid fit for anyone looking to pair electric heating with a smart home setup.

What Sets Best Electric Radiators Apart from Other Electric Radiators?

A lot of retailers sell electric radiators as an afterthought alongside other home products, but this company’s entire focus is electric heating, which means their product knowledge and post-purchase support reflect that depth. Seven-days-a-week UK customer support, lifetime telephone assistance after purchase, and a strong warranty structure are the kinds of commitments that matter once you’re already dealing with a heating problem in January.

What Users Are Actually Saying:

Customers consistently highlight how smooth the ordering process is and how helpful the support team is when questions come up post-delivery. With a Trustpilot score of 4.8 out of 5 from over 1,400 reviews, they hold the top spot for electric radiator retailers on that platform, and the volume behind that score gives it real weight (not just a handful of reviews skewing the number).

2. The Electric Heating Company – Best for Residential and Commercial Electric Heating Solutions

How Is The Electric Heating Company Positioned in Its Industry?

Founded in 2005 and based in Blantyre, Scotland, The Electric Heating Company covers a wide spread of electric heating needs, from domestic radiators right through to commercial electric boilers reaching 100kW. They serve offices, hotels, schools, sheltered housing, and tower blocks, which makes them one of the few retailers who can genuinely handle both a single-room residential job and a large commercial specification. Their award-winning Fusion Electric Boiler has become a recognisable product in the sector, and that kind of product-level recognition tends to reflect real engineering quality.

What Sets The Electric Heating Company Apart from Other Electric Radiators?

Where many retailers focus purely on sales, this company offers pre and post-sales technical support alongside project specification advice, which is genuinely useful when a contractor or developer needs to spec a heating system across multiple rooms or an entire building. That level of technical backing is rare to find from a retailer rather than a dedicated HVAC installer, and it shows in the depth of their support offering.

What Users Are Actually Saying:

Customers regularly note the quality of the technical advice they receive, both before buying and after installation. The company has also won national customer service awards, which lines up with the review sentiment that the post-purchase experience is as strong as the product range itself.

3. Electric Radiator Direct – Best for Heating Solutions and Electric Radiator Supply

How Is Electric Radiator Direct Positioned in Its Industry?

Electric Radiator Direct built its reputation as a specialist supplier of electric heating, and it’s a position they’ve held consistently since founding around 2012. They’re the sole UK distributor of the iQ Ceramic electric radiator and Haverland’s biggest UK supplier, two brand relationships that give them genuine market weight. Their distribution centre runs on solar panels, and they partner with environmental organisations, which resonates with buyers who care about more than just the price per unit.

What Sets Electric Radiator Direct Apart from Other Electric Radiators?

Many electric heating retailers stock whatever sells fastest, but this company’s exclusive distribution agreements mean buyers get access to premium branded products that aren’t available everywhere else. Eight consecutive years of Feefo’s Platinum Trusted Merchant accreditation reflects the kind of sustained reviews from real buyers that’s hard to manufacture and very hard to maintain.

What Users Are Actually Saying:

Honestly, eight years of Feefo Platinum status tells most of the story before you even read a single review. Customers consistently report satisfaction with the product quality and the buying experience, and the fact that the accreditation is based on independently verified, real customer reviews gives it considerably more credibility than a self-reported rating.

4. Only Radiators – Best for Online HVAC Radiator and Heated Towel Rail Retail

How Is Only Radiators Positioned in Its Industry?

Only Radiators is part of the Beyond Retail family and carries an established range of design-led radiators and heated towel rails from brands including Crosswater, Terma, and DQ Heating. Based in Dorset, they serve both individual homeowners and a trade customer base of around 15,000 active accounts, with tiered discounts for trade buyers. Their 30-day money-back guarantee and free UK Mainland delivery remove two of the most common friction points in online heating retail, and that combination clearly works given the size of their active customer base.

What Sets Only Radiators Apart from Other Electric Radiators?

The company bridges design and function in a way that some pure-spec retailers miss, which matters when a customer is fitting a radiator in a visible space and doesn’t want it to look like an afterthought. Their own-brand product development alongside established brand partnerships also gives buyers a broader pricing range than a single-brand retailer can offer.

What Users Are Actually Saying:

Reviews consistently point to the website experience as a genuine strength, with customers finding the ordering process clear and the pricing fair. Winning a National Award for Wellbeing from the Federation of Small Businesses in 2022 is a different kind of recognition than a product award, but it says something useful about the culture behind the company.

5. Dimplex – Best for Electric Heating Products and Solutions

How Is Dimplex Positioned in Its Industry?

Dimplex has been making electric heating products since 1949, making it the longest-established name on this list by far. Now part of the Glen Dimplex Group, the company carries over 700 products including electric fireplaces, baseboard heaters, and wall-mounted units. They’re headquartered in Dublin as part of the group structure, but their UK presence is deep and their brand recognition across British homes is stronger than most competitors in the electric heating space. The Optiflame flame effect technology they introduced in 1989 remains the world’s best-selling electric flame effect fire, which is the kind of product longevity that’s genuinely hard to match.

What Sets Dimplex Apart from Other Electric Radiators?

Dimplex occupies a different position from the other retailers here because they’re both a manufacturer and a market leader, which means their product engineering reflects decades of applied research rather than sourcing decisions. Winning the Best Domestic Flexibility Proposition award at Utility Week Live 2024 alongside Centrica signals that they’re actively shaping where the market is heading, not just reacting to it.

What Users Are Actually Saying:

Multiple Which? Best Buy Awards across their product range reflect a pattern of genuine consumer satisfaction rather than one standout product. Buyers value the reliability and the confidence that comes with purchasing from a company that’s been in electric heating for over seventy years (that kind of track record doesn’t come from luck).

Methodology Behind These Picks

Gathering Your Raw Data

Building the longlist started with a broad sweep across UK heating directories, independent review aggregators, consumer feedback platforms, and trade-facing publications. Each source was treated as a separate signal rather than a single source of truth, so retailers had to appear positively across multiple touchpoints before they were even considered for closer review. Companies operating only in niche commercial segments without any residential presence were noted separately and kept out of the shortlist for this particular focus area.

The Shortlist Cut

From the initial longlist, retailers without verifiable customer feedback were removed. This wasn’t just about having a Trustpilot page or a Feefo score, but about having enough volume of real-world reviews to make the rating statistically meaningful. A retailer with twelve five-star reviews looks very different from one with over a thousand. Review patterns were also examined for consistency over time, since a cluster of positive reviews followed by a drop-off often signals a service quality shift worth flagging.

Fact-Checking the Picks

Once a shortlist was in place, claims made on each retailer’s website were cross-referenced against what buyers were actually reporting. If a retailer claimed next-day delivery as standard but reviews mentioned repeated delays, that gap was factored into the assessment. Product-level claims, such as heat output ratings and wattage accuracy, were checked against independent product reviews and where possible against manufacturer specifications to confirm they reflected reality rather than marketing copy.

Authority Signals and Industry Standing

Each shortlisted retailer was assessed for signals that reflect genuine standing in the electric heating industry. These included industry award recognitions, mentions in trade publications, accreditations from independent review platforms (such as Feefo’s Platinum Trusted Merchant status), and recognition from established consumer organisations. Companies that appeared only on their own channels without third-party validation were treated with more caution than those with external recognition across multiple independent sources.

Electric Radiators Track Record

The final filter was dedicated evidence of real-world performance in electric heating. Retailers were examined for product pages built around actual heating use cases (such as room sizing guidance, watts per square metre calculators, and IP rating information for bathroom-safe installations), verified buyer reviews mentioning specific product performance, and any available case studies or project references. Retailers who stock electric radiators as one small category among hundreds of unrelated home products were given less weight than those whose entire catalogue and knowledge base is centred on electric heating.

Picking the Right Electric Radiators for You

Choosing the right electric radiator retailer for a small space comes down to more than the price on the product page. The five options above cover a range of needs, so it’s worth being clear about what matters most before you buy.

• Industry/Domain Experience: Look for retailers who specialise in electric heating rather than stocking it as a side category. Longer trading histories and deeper product knowledge tend to translate into better buying advice.
• Features and Service: Consider whether the retailer offers technical guidance on sizing, post-purchase telephone support, and clear warranty terms. For small spaces, getting the wattage right matters, and good retailers help you do that before checkout.
• Pricing Structure: Weigh the upfront product cost against what the unit will cost to run monthly. A slightly cheaper radiator with lower thermostat accuracy can cost more over a heating season than a better-specified unit that costs more to buy.
• Results Measurement: Check whether the retailer provides clear energy information, including COP ratings and heat-up times. These numbers let you compare units honestly rather than relying on marketing descriptions.
• Industry Knowledge and Compliance: For bathroom or wet room installations, confirm that the retailer stocks units with the correct IP ratings and can advise on Part P Building Regulations compliance. This isn’t optional, it’s a safety requirement.

The Verdict

Small spaces don’t need big, complicated heating systems, but they do need the right ones. The retailers on this list each bring something distinct, whether that’s decades of manufacturing history like Dimplex, specialist technical support like The Electric Heating Company, or the focused online knowledge that Best Electric Radiators has built since 2012. As electric heating continues to replace gas in UK homes, the retailers who understand sizing, performance, and compliance will pull further ahead of those who simply shift boxes.