Mill · Designed in Norway
Two technologies, one quietly smarter heater
Every Mill heater runs two proprietary technologies: Mill PID Wattage Tech™ — precise, silent, watt-by-watt temperature control — and Mill Predictive Heating™, which learns your room and warms it at exactly the right time.
Everything on this page is drawn from Mill’s 2026 Technology Report — real measurements from roughly 10 days of continuous logging, not a simulation.
Why ordinary heaters never feel quite right
A basic thermostat only knows two states: on and off. It waits until the room is too cold, blasts at full power, overshoots your setting, drifts back down, and repeats — all night. The result is ±1°C temperature swings you can feel, and energy spent heating past the point you asked for.
Ordinary on/off thermostat
Too cold → full blast → overshoot → drift → repeat. Roughly ±1°C swings, clicking relays, wasted energy.
Mill PID Wattage Tech™
Continuously adjusts how much power it delivers — easing onto your setting and holding it within a fraction of a degree (±0.3°C once settled, per the Mill Technology Report). Silently, with no energy spent overheating.
A heater that learns your room
On Mill’s panel heaters, Mill Predictive Heating™ builds a physical model of your specific room — how much heat it stores, how fast it loses it, and the ambient temperature — automatically, within about 2 days of normal use.
Then it works backwards from your schedule: if you want 20°C at 06:30, it calculates exactly when your room needs to start pre-heating, and starts at that minute. Warm when you wake — without heating an empty house all night.
Works room-by-room via the Millheat app. Also Matter & Zigbee compatible for whole-home setups.
Placed right, it beats the cold at its source
Windows are where winter gets in. Cold air sheets down the glass and spills across your floor — the “cold rush”, that draft you feel at ankle height. The Mill Invisible panel is designed to mount under the window, low on the wall: its rising warm air meets the falling cold air and neutralises the draft before it ever crosses the room. It’s a comfort trick Norwegians have used for decades.
Keep at least 10cm clearance around the heater. Prefer flexibility? The panels also stand on feet, so you can move them room to room as winter demands.
What that means for your winter bill
Municipal electricity rose roughly 9% on 1 July 2026. At typical tariffs, a 2kW heater costs roughly R6–R8 per hour to run flat out. International smart-thermostat studies (ENERGY STAR and field studies) show that scheduled, precisely-controlled heating typically saves 10–20% compared with a manual dial left on.
Estimate your month
Manual dial, full blast
R1,404
per month
With Mill control
R1,123 – R1,264
per month (10–20% saving band)
Based on international smart-heating studies — individual results vary with room, insulation and schedule.
The 5-year difference
Every Mill heater carries a 5-year warranty — the longest in South African heating. Typical heaters on SA shelves carry 6 months to 2 years.
Designed in Norway for eight-month winters. Red Dot Design Award 2022 (Mill Invisible panel).
The Mill range at Solenco
Instant & Instant Max LED
Silent convection, 2000W & 2200W
R2,399 – R2,999
View Instant 2000W or Instant Max 2200W →Technical claims drawn from Mill’s Technology Report (2026): PID Wattage Tech™ and Predictive Heating™, validated over ~10 days of continuous real-world logging. Savings percentages reference international smart-thermostat studies (ENERGY STAR and field research), not Mill lab tests.