Best Kitchen Plinth Heaters for Space Saving: 2025 Expert Review
DR Joinery
Expert Joiner & Kitchen Specialist
In many modern kitchen designs, wall space is at a premium. Clients often want floor-to-ceiling larder units or extensive cabinetry, leaving little room for a traditional radiator. This is a common issue I face when renovating Victorian terraces in York, where every inch of space matters.
The solution is often a plinth heater. Tucked away in the 'kick board' or plinth beneath your cabinets, they offer a discreet way to heat the room without compromising your storage layout. However, cheaper models can be noisy, rattle against the timber, or fail after a hard winter.
In this review, I've selected three electric plinth heaters that I regularly encounter or recommend. We'll look at a solid budget option, a premium trade favourite, and a smart unit that offers precise temperature control.
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Specs vs. The Real World
The Spec: "Room Size Capacity"
"Manufacturers state coverage up to 29 cubic metres."
In older properties with single glazing or high ceilings (common in York), electric plinth heaters struggle as a primary heat source. They are best used for 'topping up' heat or warming cold toes while cooking.
The Spec: "Easy Installation"
"Plug and play installation."
Ideally, these should be hardwired into a fused spur, not just plugged into a socket behind a unit where you can't reach the fuse. This requires coordination with an electrician during the kitchen fit.
My Top 3 Recommendations
Three options to cover different needs and budgets
SIA PLH2 2kW Black Slimline Electric Built-in Kitchen Plinth Space Heater
SIA
If you are renovating on a strict budget, this SIA unit does the job effectively. Whilst it lacks the advanced features of premium models, it provides a solid 2kW output which is sufficient for taking the chill off a small-to-medium kitchen.
The Good
- Very affordable price point
- Slimline design fits standard plinths easily
- Two heat settings plus a fan-only mode for summer
The Bad
- Controls are on the unit itself, requiring you to reach down
- No thermostat, so manual operation is required
- Slightly noisier fan than premium brands
Installer Tip:
Because the controls are low down on the unit, position this heater in a high-traffic area where it is easy to reach, such as under the cutlery drawer, rather than in a tight corner.
Priced at £73.99 at the time of writing
Check Price on AmazonSmiths 2kW Electric Kitchen Plinth Heater SS2EW with Brushed Steel Effect Grille
SMITHS
Smiths is a name we genuinely recognise in the trade. This Space Saver unit is built to a higher standard than most generic imports, reflected in the 5-year warranty. The wall-mounted switch is a brilliant addition, meaning no bending down to turn it on.
The Good
- Excellent build quality backed by a 5-year warranty
- Includes a wall-mounted control switch (no bending down!)
- Brushed steel effect grille suits modern appliances
The Bad
- Significantly higher upfront cost
- Requires more complex wiring for the wall switch
Installer Tip:
The brushed steel grille is lovely but can scratch during installation. I always apply masking tape to the grille face while fitting the plinth, removing it only once the job is finished and the floor is swept.
Priced at £229.00 at the time of writing
Check Price on AmazonBidex Diamond 1.9kw Electric Kitchen Plinth Heater with Room Thermostat & Timer
Bidex
The main complaint I hear about electric heaters is the running cost. This Bidex unit solves that problem with a 7-day programmable timer and room thermostat. It ensures you aren't heating an empty kitchen, making it a smarter choice for energy-conscious homeowners.
The Good
- Programmable timer reduces wasted energy
- Thermostat maintains temperature automatically
- Good balance of price and features
The Bad
- Setup is slightly more involved due to the timer settings
- White grille may not match dark kitchen designs (though can be painted)
Installer Tip:
When installing the thermostatic controller, ensure it isn't placed directly above a toaster or kettle area on the worktop, as the rising heat will trick the sensor into turning the heater off prematurely.
Priced at £105.00 at the time of writing
Check Price on AmazonFrequently Asked Questions
Can a plinth heater heat the whole kitchen?
Are plinth heaters noisy?
Do I need a joiner to install a plinth heater?
Does the heater damage the kitchen units?
Can these be fitted into existing kitchens?
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