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Solar warm water generation, heating of swimming pools and / or support of central heating. Designed also for large commercial solar systems.
Compatible for on-roof installation, homogenous in-roof installation and for remote mounting on a flat roof or other area
VFK 145 and VFK 155 are available in horizontal and vertical installation versions, VFK 125 for vertical installation
For solar earnings even on cloudy days or days with low irradiation
Laser-welded aluminium-copper serpentine absorber ensures optimal heat transfer

Well-adjusted drainback and pressurized system for the generation of solar domestic hot water
Minimum planning effort required, useable for domestic and light commercial segments
Protected from stagnation and frost damage
Little effort needed for installation and maintenance effort
Ideal solution especially for areas with high solar radiation

For supply of domestic hot water
Tank volumes 150, 200 and 300 litres
No additional energy costs for the pump function, electrical back-up can be added to the system
Reduced maintenance costs
Corrosion protection

Vacuum tube collector with 6 or 12 tubes (1 or 2m²)
For application in system for solar domestic hot water generation but also for solar-supported heating systems
Low weight and compact dimensions
Fast and safe installation on tilt or flat roof roofs, alongside each other or one above the other
Easy-to-replace tubes

Available in capacities of 300,400 and 500 liters
In case of need a second heat exchanger is powered by the heating device for reliable comfort
Compatible with Vaillant range of wall-mounted boilers, floor-standing boilers and solar thermal collectors
Si besoin est, un échangeur d’appoint est alimenté du générateur de chaleur pour assurer le confort sanitaire
Cleaning door, double coil

for control of the generation of solar domestic hot water and solar-supported heating
weather-guided control of the system
for up to 2 heating circuits, 1 direct heating circuit, 1 mixing circuit (f.ex. for underfloor heatingI, extendable up to 14 heating circuits
comfortable text display with graphical visualizations
constant indication of solar earnings, option for remote control, control for heating cascades

Can be installed with every type of energy source
Highest warm water comfort for small, medium and large demands thanks to various tank sizes from 300 up to 2000 l.
Lowest standby losses due to highly efficient isolation concept
Suitable to use with auroFLOW solar unit and aguaFLOW domestic hot water unit and for support of central heating system
Adaptation to Vaillant range of control technology

Wide range of storage sizes, from 750 up to 2000 liters, either in mono- or bivalent operation mode with one or two heating coils tailored to suit specific domestic hot water demands. - Compatible with Vaillant range of wall-mounted boilers, floor-standing boilers and solar thermal collectors
Compatible with Vaillant range of wall-mounted boilers, floor-standing boilers and solar thermal collectors
Combinable into a system with Vaillant heating appliances and controls
In case of need of more domestic hot water, a second heat exchanger is powered by the heating device for additional temperature rise for reliable comfort.

For solar domestic hot water generation systems
Vaillant user comfort “turn and click”, Fast and safe installation thanks to System Pro E
Symbol display, indication of operation status and cycle times, detection of solar earnings, indicated over the graphical display
Up to 2 independent collector fields
Option to connect a 2nd storage or swimming pool heating

Pre-designed pressurized circulation systems.
Deposits monovalent with capacities of 150, 200, 300 and 500 liters and also 300, 400 and 500 liters bivalents.
Solar control center auroMATIC 570 included
Vertical installation auroTHERM VFK 125 solar collector. Hydraulic connections in stainless steel. Mounting accessories, solar charging station and expansion vessel complete the system.
Compatible for any type of installation in flat roof, inclined roof and also for integration in the roof.

Efficient solar use with single flat or multi-family houses, ideal as heating centre in the attic
Gas and power savings by self-optimizing operation and high efficiency pump
Compact dimensions and appealing design in one device, together with low noise emission – suitable even for integration in living area
Energy-saving preparation of domestic hot water with high comfort thanks to big integrated shift-load cylinder
Ready for upgrading in combination with ventilation system or storages

Fast and easy planning of a solar installation. Long service life only with drainback technology
Integrated stagnation and freezing protection system
High Efficiency Circulating Pumps and eBUS Connection
Available in two versions, for collector fields up to 15 m2 and up to 30 m2, and with cascade installation up to 120 m2
Ideal solution for areas with large solar radiation with non-constant hot water needs (eg hotel, gym, etc.)

1 - 12 of 12 Results