The robust construction UST-JAD-HR(Z) is used in all district heating networks with high requirements.

The heat exchanger JAD is a classical tube bundle heat exchanger. Thanks to the modular design of tube bundle heat exchanger JAD (district heat exchanger) are these suitable for apartment buildings through to commercial premises.

The domestic hot water is supplied via an inner coiled tubing with a large exchange surface (double-register boiler).


Heat exchanger                stainless
Double-register boiler        carbon steel enamelled (optional stainless)

Max. operating conditions
  Pressure Temperature
Primary side
PN6 - PN25 200°C
Secondary side
PN6/10 100°C


•    output from 100-1'000 kW (higher output on request)
•    double-register boiler 300 l to 1'000 l (larger volumes on request)
•    including massive frame profile housing
•    including complete piping
•    including control unit with wiring


•    heat counter, differential pressure regulator / volume current limiting device, control points etc.
•    several heating groups
•    circulation
•    frame profile housing
•    Isolation

Thermally optimized components

The modular design of tube bundle heat exchanger JAD and a technical optimization ensures that a temperature pitch of 3-5°C (depending on requirements) is reached.


•    short delivery times
•    easy service
•    modular construction


RemCal AG
Wilerstrasse 2180
CH-9230 Flawil
Phone +41 71 555 11 00

ConVacc AG
Wilerstrasse 2180
CH-9230 Flawil
Phone +41 71 394 14 80