Bolly 1 XL

Bolly 1 XL is a high-performance solution designed for the production and storage of domestic hot water (DHW). Built with durability and efficiency in mind, it features a robust mild steel construction coated with certified Polywarm® for safe, hygienic water contact. Installation is quick and convenient thanks to all connections being aligned on the front and back.

Equipped with one integrated Polywarm®-coated heat exchanger, the Bolly 1 XL offers excellent thermal performance. It is insulated with your choice of ecological polyurethane hard foam or recyclable NOFIRE® polyester fleece, both offering high thermal insulation and fire resistance (Class B-s2d0).

The tank is externally finished in durable grey PVC and protected internally with a magnesium anode for extended lifespan. It includes a drain connection for easy water discharge and a mild steel inspection flange with silicone gaskets suitable for potable water and electric heater compatibility.