1. Calorifer made of steel enamelled inside
 
2. 2 smooth pipe heat exchangers enamelled, built in
- for alternative use at the bottom
- for additional heating with an oil, gas or wood boiler at the top

3. Magnesium protection anode built in

4. Flange for the installation as flange-mounted electric heating element
 
5. Thermal insulation made of polyester fleece with foil jacket, red coloured

6. Thermometer included

7. Channel for sensor

8. 1½″ sleeve for a screw-in electric heating element