Solar Tanks
QUADROFLEX QFS solar tanks are designed to store hot water heated by solar collectors, with the option of top-up heating from another source (such as a boiler) via a second heat exchanger. The QFS1 series has one heat exchanger for the solar circuit, while the QFS2 series has two heat exchangers for combining solar with another heat source. Capacities range from 200 to 700 litres, with selected models also available with an additional electric heating insert (P).
Frequently Asked Questions
- What is the difference between QFS1 and QFS2? QFS1 has one heat exchanger for solar collectors, QFS2 has an additional second heat exchanger for top-up heating from a boiler or other source.
- What does the designation P mean on a model? It indicates a version with an additional electric heating insert for top-up heating when there is no sun.
- What capacity should I choose for a 4-person family house? Usually 300 - 500 litres, combined with a sufficient area of solar collectors.
