Programmable Electric Floor Heating Thermostat – Heatmiser Slimline-E V3

Product Overview

The Heatmiser Slimline-E V3 is a contemporary, flush-mounted programmable thermostat designed specifically for electric underfloor heating systems. With its slim profile and intuitive menu-driven display, it offers precise, energy-efficient scheduling and user-friendly control, making it ideal for both domestic and commercial environments.

Key Features

• Large, clear display: Backlit LCD makes programming and status checks easy in any light
• Powerful programming: 5/2 day or 7-day timer with up to 4 heating periods per day
• Temperature sense modes: Built-in air sensor, floor sensor or air & floor combined; 3m floor sensor probe included
• Hold and holiday facility: Temporary or extended temperature override for flexible comfort
• Keylock function: Prevents accidental or unauthorized changes
• Temperature range: Adjustable between 05–45°C
• Output load: Up to 16A @ 230V AC – suitable for most electric heating mats or cables
• Frost protection: Yes
• Sensor type: NTC 10K @ 25°C (floor sensor supplied for accurate floor temp control)
• Mounting: Flush mount, fits standard 35mm deep single back box
• Colour: White with matching faceplate
• IP Rating: IP21 (suitable for zone 3 bathrooms)
• Warranty: 2 years manufacturer’s warranty

Applications

• Electric underfloor heating (mats or cable systems)
• Suitable for use in bathrooms, kitchens, and living spaces
• Modern residential or commercial buildings where discreet, flush-mounted control is preferred

Box Contents

• Heatmiser Slimline-E V3 Thermostat
• 3m Floor Sensor Probe
• Mounting screws
• Installation manual

Note: Designed exclusively for electric floor heating systems. Not Wi-Fi enabled – no app or remote control. For use with compatible 230V electric heating only.

Please note: Delivery times may vary depending on location, with specific details outlined below.

Standard Delivery

UK Mainland 

• Delivery Time: 2–4 working days
• Free Delivery on all orders

Express Delivery

UK Mainland

• Delivery Time: 1–3 working days
• Delivery fee of £15

Channel Islands

• Postcodes Covered: GY*, IM*, JE* 
• Minimum Order: £50
• Delivery Fee: £70

Northern Ireland, Offshore Territories & Scottish Islands 

• Postcodes Covered: BT*, HS*, KW, ZE
• Minimum Order: £50
• Delivery Fee: £35

Same Day Delivery 

• Eligible Postcodes:
  E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW*
• Minimum Order: £50
• Same Day Delivery Fee: £60
• Special Requests or Locations:
  For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.

Collections

Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.

Collection address: 284 Water Rd, Unit 9, London, HA0 1HX