The Best Plinth Heaters: Stay Toasty While You Cook

For those seeking kitchen or utility room comfort, our handpicked selection of electric and hydronic plinth heaters offers the ideal warmth solution.
Tried & Tested: See Our Testing ↓
Written & Tested By: Richard Morgan | Updated:
best plinth heater
Richard Morgan/DIY Works
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Installing a plinth heater within modern kitchens has become increasingly popular and this is mainly because space on the walls may be limited and installing underfloor heating can cost thousands. Therefore, this makes plinth heaters a very attractive option as they are relatively affordable and designed to fit under most standard kitchen units.

To assist you in selecting the right plinth heater, our handpicked selection lists top-performing models, chosen based on our first-hand experience installing both electric and hydronic units. Our testing and up-to-date research further ensure the quality of our recommendations.

Winterwarm WWFH20E Plinth Heater
Best Electric: Winterwarm WWFH20E Plinth Heater
Smiths Hydronic Kitchen Plinth Heater
Best Hydronic: Smiths SS7 Hydronic Plinth Heater
Smiths Electric Kitchen Plinth Heater
Best Quality Electric: Smiths SS2EW Electric Plinth Heater
CDA APH01SS Stainless Steel Plinth Heater
Best Value Electric: CDA APH01SS Stainless Steel Heater
Myson Kickspace 500 Hydronic Plinth Heater
Best Quality Hydronic: Myson Kickspace 500
KPH 1500 Classic Plinth Heater
Best Value Hydronic: KPH 1500 Classic Plinth Heater

How The DIY Works Team Tests & Rates Plinth Heaters

As we own a number of properties (Airbnb’s and rentals), we’ve had the opportunity to install multiple hydronic and electric plinth heaters over the years.

In terms of our preference between the two types, we prefer hydronic plinth heaters because they are more energy efficient when compared to the electric alternatives. However, in some of the properties, it isn’t that simple to install the heater to the central heating, which means that an electric alternative is the best solution.

In terms of our ongoing testing of the plinth heaters, we analyse the heater’s performance, energy efficiency, build quality, heat settings, ease of installation and operation and the safety features that it offers. As you can see in the image of the Smiths plinth heater we installed, it’s very stylish and it has easy-to-use fascia controls to control the heat.

best hydronic plinth heater

Richard Morgan/DIY Works

To keep up our commitment to reviewing and testing the latest plinth heaters (for this article), we are continually testing the latest offerings from top brands in the UK. This means that when we notice that a brand has released a new model, we attempt to upgrade our current installations with the newer model.

It’s important to note that although most plinth heaters are designed to fit under standard kitchen units, some models may require extra clearance.

As well as our testing and experience in installing multiple plinth heaters, we also based our recommendations on the latest research and several factors. Some of the factors we considered included the heater’s performance, build quality, ease of installation and operation, energy efficiency, heat settings, safety features, warranty and value.

The Best Plinth Heaters

At DIY Works, our content is 100% independent and we would never recommend a product that we wouldn't use ourselves (read our editorial standards and how we test products).

1. Best Electric: Winterwarm WWFH20E Plinth Heater

(How We Review →)

The Winterwarm WWFH20E is by far the most popular plinth heater on the market and this is mainly because it’s an affordable option that’s packed with premium features such as Bluetooth control and a programmable seven day timer.

In terms of the installation, it requires no plugs because it uses a 3-core for a fused spur installation. To guide you through installing it, the brand includes thorough instructions in the box for those that are confident with their DIY skills.

  • Total height of 12 cm (including the grille)
  • Bluetooth controlled 7 day timer
  • Energy efficient start technology
  • Plastic and steel construction
  • On/off switch and a remote control
  • 3 wire installation
  • Variable heat settings
  • Overload cut out and overheat protection
  • Only available with a single grill (no customisation available unless you paint it yourself)

To conclude, the Winterwarm WWFH20E is the best plinth heater for the money and it’s packed full of features so that you can tailor the heating experience to your requirements. The only drawback is that it lacks interchangeable grills but you may be able to customize it yourself with a suitable paint.

2. Best Hydronic: Smiths SS7 Hydronic Plinth Heater

(How We Review →)

The Smiths hydronic plinth heater is a premium option that’s suitable for two-pipe central heating systems. The brand state that it’s designed to fit under all standard kitchen units and it eliminates the need for conventional radiators.

For those that want to make their plinth heater more unique, the brand offers a wide range of attachments. The detachable grill can also be easily replaced and switched to one of the many colours available too.

  • 100 mm in height
  • Easily heats kitchens up to 46 cubic metres
  • Two heat outputs for heating or cooling
  • Easy to install for dual pipe central heating systems
  • Includes a two year parts and labour warranty
  • Supplied with two flexible hoses
  • Most expensive within our roundup

Although expensive, when you consider the price of underfloor heating, the Smiths SS7 is a worthwhile investment that you won’t regret. It has a contemporary design and the choice of grill colours is very desirable because it allows you to choose a colour to best suit the rest of your kitchen.

3. Best Quality Electric: Smiths SS2EW Electric Plinth Heater

(How We Review →)

Smiths also produce an electric alternative to the hydronic plinth above and it’s known as the SS2EW model.

It’s designed to connect with and run from a standard electric system and it includes an impressive 5-year warranty on parts and labour for complete peace of mind.

Depending upon your heating requirements, there is a “boost” function that boosts the standard BTU of 3,410 to 6,820 BTU. This boost functionality is ideal for when you need a blast of warm air for a brief period.

  • Supplied with a thermostatic controller
  • Boost mode for extra heat
  • Brushed stainless steel grill (100 mm high)
  • Summer setting to circulate cool air
  • Frost protection mode
  • Made in the UK with a 5 year warranty
  • Connects to standard electric systems
  • Choice of brown, chrome, brushed steel, gold, black and aluminium covers
  • Most expensive electric plinth heater within our roundup

As with the alternative Smiths plinth heater, it’s a premium option but it’s worth the extra. Not only does it come with a thermostatic controller but the brand also includes multiple grill covers that allow you to customize the heater.

4. Best Value Electric: CDA APH01SS Stainless Steel Heater

(How We Review →)

Another affordable option is the CDA APH01SS plinth heater, which has a slimline design with a stainless steel finish. Compared to similar-priced alternatives, this unit has three heat settings that include cool, warm and hot. Controlling the plinth heater is achieved using the basic on-off switch, which is indicated on the neon light.

  • High quality stainless steel finish
  • Automatic safety cut out protection
  • Produces 2,000 watts of heat output
  • Three heat settings (cool, warm and hot)
  • 5 year warranty on parts and 2 years on labour
  • Doesn't come with a plug (requires a 13A plug)

Overall, it’s an excellent all-round plinth heater that’s suitable for all seasons with both hot and cold heat settings. The CDA APH01SS also comes with a 5-year warranty on parts and a 2-year warranty on labour for peace of mind.

5. Best Quality Hydronic: Myson Kickspace 500

(How We Review →)

The Myson Kickspace 500 is another premium hydronic plinth heater that’s designed to fit horizontally under most kitchen units. The brand state that it’ll easily connect to a central heating system and it’s simple to control via the controls on the front panel. The brand themselves are the original plinth heater manufacturers and you can rely on them for their high standard of build quality. They also produce a range of accessories such as thermostats and wall switches too.

  • Large surface area heat exchanger for instant heat
  • White grille but other options are available
  • Built-in low limit thermostat
  • Includes a two year warranty
  • Relatively expensive when compared to the alternatives
  • Requires an electrical connection for the fan

To conclude, the Kickspace plinth heater by Myson is a highly-rated hydronic model that’ll work with most existing central heating systems. Depending upon the heat output you require and your budget, the brand also produces a range of other models that are more powerful than this 500 option.

6. Best Value Hydronic: KPH 1500 Classic Plinth Heater

(How We Review →)

If the Smiths and Myson hydronic plinth heaters are too expensive, the Thermix KPH-1500 Classic is the best option. It’s an affordable alternative that has two heat settings and is available in white, black, silver or a stainless steel finish.

The ability to boost the heat output of a plinth heater is highly desirable and this model does exactly that. The normal output is 1,260 watts but once initiating the boost mode, it’ll raise to 1,450 watts for extra warmth.

  • Normal and boost heat settings
  • Available in four different colours
  • Energy class A++
  • Supplied with two WRAS approved flexible hoses
  • Includes a two year warranty
  • Automatically switches on or off with the central heating system
  • Designed and made in the UK
  • Not as high quality when compared to the premium alternatives

Overall, the Thermix KPH-1500 Classic is an affordable hydronic plinth heater that provides great heat output. The brand offers a range of similar models but the KPH-1500 Classic ticks all the boxes and it certainly won’t disappoint.


Plinth heaters are an excellent addition to any kitchen and they can even be used all year round if the plinth heater you choose has a cooling unit.

All of our recommendations are suited to a range of budgets and include both hydronic and electric systems. However, to avoid disappointment, we advise that you take measurements of your kitchen units before buying one of the heaters.

If you require further information regarding our plinth heater recommendations, feel free to get in touch and we will try to provide our assistance where possible.

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