Rator replaces your existing radiator and makes heating at a low supply temperature comfortable, with intelligent, quiet technology.


You do not need to know either. One rule is enough: the cooler the water, the more efficiently your heat source works.
Only: ordinary radiators give off too little heat at a low temperature. That is why a home gets cold instead of cheap.
Rator solves that. It gets more out of the heat that is already there. Quiet fans actively spread the heat through the room. The valve doses the water flow automatically for the biggest possible saving. Works with your boiler now, and your heat pump later.
What many boilers still supply. Your boiler barely condenses and burns more gas than needed.
Where a heat pump can just about work with existing radiators. Efficiency stays low.
What Rator makes comfortable. Your heat pump uses a lot less electricity and can be a size smaller.
Within reach in a well-insulated home. This is where the efficiency of a heat pump peaks.
Temperature right on the unit. No app, and no new heating habits like with underfloor heating.
The active air flow spreads the heat and prevents cold corners in the room.
Heats per room, at the ideal return temperature. So your heat source does less work.
The fans ease up and down. They never kick on hard. Under 30 decibels Rator stays quieter than your fridge.
At normal use. Ask for a lot of heat at once and you will hear it for a while.

High readability, accessibility options and clear settings, in nine different languages. No app needed if you don't want to.
The schedule handles the week. Turn it up when you want, choose how long, and it returns to the plan by itself.
Warm up fast, save a little, or keep it whisper quiet. You pick the situation, Rator sorts out the rest.
Behind your boiler you use up to more than 20% less gas. With a heat pump you use less electricity, and the pump can be a size smaller.
A worked example, not a promise. The range assumes a supply temperature of 45 down to 35 °C after installation.
The heat pump can be a size smaller and electric back-up is often no longer needed. A one-off gain at the moment the heat pump arrives.
And around 8 years payback instead of 20 years or more. No broken floors and no weeks of building work.
Basis: apartment 750 m³ of gas a year and 4 units, terraced house 1,100 m³ and 6 units. Minus 150 m³ for hot water, times 8.8 kWh per m³, gives the heat demand. Gas boiler: 70 °C now, 45 down to 35 °C with Rator. The gain comes from better condensation plus 8% from room-by-room control. Heat pump: 55 °C now at COP 2.8, with Rator COP 3.7 at 45 °C and 4.6 at 35 °C. Gas € 1.45 per m³, electricity € 0.30 per kWh. The units use about 25 kWh each a year; that is already deducted.
The range assumes a supply temperature of 45 down to 35 degrees after installation. The better insulated your home, the lower that temperature can go and the more you save. What you actually save further depends on your heat source and how you heat.
Energy prices change, so we do not guarantee these amounts.

Developed and tested with housing corporations, installers and knowledge partners, with support from the Netherlands Enterprise Agency (RVO). Backed by research among 840 households and 8 housing corporations.

Support for the development and demonstration of the Rator radiator project.














No. Rator is an intelligent active radiator for low-temperature heating. It works with your boiler, heat pump or district heating.
No. Rator replaces your existing radiator and uses the pipes already in place. No demolition, no weeks of renovation.
The sound is never disturbing, because the fans modulate with the temperature difference. It stays under 30 dB (about as quiet as a soft whisper), unless you ask for more yourself. They always ease gently up and down instead of kicking on hard. That is a big difference from other solutions, which usually work with just 3 speeds.
No. You set the temperature on the unit itself, room by room. There is an app, but you never have to use it.
That depends on your home and your heat source. If you stay on your boiler, it means up to more than 20% less gas. If you move to a heat pump, it works more efficiently at a lower supply temperature and can be a size smaller. The examples on this page land between roughly € 110 and € 305 a year.
Usually less than an hour. Rator clicks onto your existing pipes: old radiator off, Rator on, done. No demolition.
Rator 1 has a filter that catches dust particles. It protects the fans and the heat exchanger from dirt and keeps performance at its best.
Check your situation: an installer checks the heat source, the connection and the size.
Choose the model: size and output matched to the room.
Installed in an hour: old radiator out, Rator in, done.
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