10 Best Thermix Plinth Heater for 2026
List of Top Rated Thermix Plinth Heater from thousands of customer reviews & feedback.
Updated On August 2026 277 Reviews Studied By Customer Ratings
Affiliate Disclosure
As an Amazon Associate we earn from qualifying purchases made via links on this page, at no extra cost to you. Rankings are based on independent research and customer feedback. 1 
KPH-1500Classic - Kitchen Plinth heater - Central Heating - Hydronic - 1.5kW (White)
Thermix
- Power supply 230V-50Hz Pipe connection size: 15mm
- Electrical Connection via 3A fused spur
- Heat output of 1260 watts @ Normal speed and 1450 watts @ Boost speed. (Based on entering water temperature of 70°C)
- Max. Operating pressure : 6bar
- Pipe connection size: 15mm
2 
Smiths 2kW Electric Kitchen Plinth Heater SS2EW with Brushed Steel Effect Grille - Room size upto 29 cubic metres - 5 Ye...
Smiths
- Electric kitchen plinth heater with Room Thermostat
- Room size guide: 22m3. Heat output: Normal - 1kW (3410 BTU); Boost - 2kW (6820 BTU)
- 5 year parts and labour warranty. UK manufactured
- Supplied with stainless steel grille - 6 other overlay grilles available as accessories (in Brown, Chrome, Brushed Steel, Gold, Black, Aluminium)
- Connects to and runs from your standard electric system
3 
Smiths Hydronic Plinth Heater Space Saver 3 in Stainless Steel Effect
Smiths
- Max Room Size 23m³
- Decibel Level 26-39dB
- Energy Consumption 16-21W
- Power Supply 3A
- 15mm Plumbing Connection
4 
Winterwarm WWFH20E Plinth Heater, 2000 W, 240 V, White
warm-winter
- Winterwarm - a GLEN DIMPLEX brand
- Blue-tooth Remote Control
- Programmable seven day timer
- Accurate electronic thermostat
- No Plug! 3 core for fused spur installation 1/N/PE 230-240V 50Htz - Class 1 with Earth Wire
- Same size as previous Winterwarm models
5 
CDA APH01SS Stainless Steel Plinth Heater
CDA Products
- Stainless steel finish, 13 A Power supply
- 3 heat settings: cold (fan only), warm, hot
- On-off switch with neon indicator
- Automatic safety cut out
- Rated electrical power: 2kW
6 
Thermix KPH-1300 Basic (Black)
Thermix
- Power supply 230V-50Hz Electrical Connection via 3A fused spur
- Heat output of 1300 watts (based on entering water temperature of 70°C).
- Max. Operating pressure : 6bar
- Pipe connection size: 15mm (No Flexible Hose supplied)
- Single Speed Fan
7 
Smiths Hydronic Plinth Heater Space Saver 5 in Stainless Steel Effect
Smiths
- Max Room Size 37m³
- Decibel Level 27-43dB
- Energy Consumption 21-30W
- Power Supply 3A
- 15mm Plumbing Connection
8 
Diamond 500 Central Heating Kitchen Plinth Heater: White Grille Under Cupboard Heater
Bidex
- Kitchen plinth heater + White grill for use with central heating systems (0.9kW - 1.2kW).
- Automatically switches on and off with central heating system.
- Fits under a 500mm wide kitchen cabinet
- Supplies enough warmth to heat a 27 cubic metre room.
- Plinth heaters are an efficient way of heating your room. 24% more efficient than panel radiators
9
KPH-2100 Classic - Kitchen plinth heater - Central Heating - Hydronic - 2.1kW (White)
Thermix
- Power supply 230V-50Hz
- Electrical Connection via 3A fused spur
- Heat output of 1669 watts @ Normal speed and 1861 watts @ Boost speed.
- Max. Operating pressure : 6bar
- Pipe connection size: 15mm
10 
Thermix KPH-1800 Wireless(Pat pending) - Kitchen Plinth Heater - Central Heating - Hydronic -1.8Kw (Brushed Stainless St...
Thermix
- Thermostatically controlled plinth heater with wireless thermostat
- Power supply 230V-50Hz via 3A fused spur
- Heat output of 1505 watts @ Normal speed and 1702 watts @ Boost speed.
- Max. Operating pressure : 6bar
- Pipe connection size: 15mm
