For professional pizza ovens, an evenly hot baking surface is one of the most important prerequisites for consistent results during service. Valoriani has developed the manufacturer-specific Recycling Heating System (RHS) for this purpose. It directs oven exhaust gases back into the oven construction in a controlled way to make better use of the available heat and to stabilise the baking surface.
Operating principle of the RHS
Harnessing hot exhaust gases
Very hot exhaust gases are produced during operation and, without further measures, largely escape unused through the flue. The RHS captures this heat: the gases are taken off via a dedicated duct and routed through the oven again.
Heat flow beneath the baking surface
The hot gases circulate through channels beneath the baking surface. This spreads the heat over the whole surface and keeps the baking floor at a stable temperature level. In practice this helps to dampen temperature drops under high load.
Practical benefits (manufacturer's information)
- Stable baking surface: More even temperature distribution for reproducible baking results — even under intensive use.
- Energy potential: By using waste heat the manufacturer states a possible reduction in energy consumption of up to around 30% (the actual effect depends, among other factors, on oven design, fuel, installation and use).
- Improved combustion: According to the manufacturer, multiple hot-gas circulation can reduce emissions of certain pollutants (reported reductions in the range of about 20–30%).
- Faster ready for service: The manufacturer describes shorter heat-up phases compared with ovens that do not use this heat routing.
Models with RHS
The RHS is available in selected Valoriani models, including:
Which variants include the RHS and how it is configured differs depending on model and equipment.
Who benefits from RHS?
Especially in high-throughput gastronomy, a stably tempered baking surface can noticeably ease operations — from more even baking times to steadier product quality during service. Whether and to what extent the RHS offers advantages in a specific case depends on the application profile, the fuel and the oven configuration.
Planning and purchasing considerations
Those considering an investment in a Valoriani oven with RHS should take into account the intended use, the chosen fuel and the installation and exhaust arrangements. Based on these factors it is possible to assess which equipment and sizing are sensible.