H3 Hygienic solar layered tank

Storage volume 700 – 2,000 litres

Tank systems

H3 Hygienic solar layered tank

The Froling H3 hygienic solar layered tank is a hot water tank, layered tank and solar layered tank all in one. Two high performance solar elements guarantee efficient solar integration.

Two additional high-performance solar elements permit efficient integration of solar energy in combination with the H3 hygienic solar layered tank. The corrugated stainless steel hot water pipe element which runs through the tank optimally cools the bottom part of the tank by preheating the domestic hot water. The low temperatures at the bottom of the tank enable a low return feed temperature to the collector and thus extremely efficient utilisation of the solar energy irradiation (up to 70% more energy yield depending on the collector type).


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Communicating layered tanks

Thanks to their intelligent measurements, Froling layered tanks can be easily installed in the boiler room. And in rooms with low ceilings, Froling offers even more.

Up to four short slim tanks can be joined together with exact temperature layering in all tanks. Another advantage is the fast and easy assembly with the tanks just 80 mm apart.


The layered tanks can either be set up in a row or at an angle: In this case the connection couplings are fitted to the layered tank in the middle at an angle of 90°.

Brochure / EU Label

Technical documentation

For you personally

Information & advice

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Fröling Heizkessel- und Behälterbau Ges.m.b.H.
Industriestraße 12 | A – 4710 Grieskirchen


Froling is a pioneer in modern wood heating systems. The Froling signature is on many products from the groundbreaking invention of the firewood boiler with high-temperature combustion, from the wood chip burner with Lambda technology to the development of the internationally acclaimed pellet boiler.

A wide variety of well-known international quality awards underscores the ongoing success of the Austrian family company.

Heating with biomass

Heating with wood is convenient, saves on heating costs, is a secure renewable raw material and is also carbon-neutral