BIO multifunctional pellet heating boiler with firewood burning capability; 15, 25, 40 kW
technologies are not necessarily the bane of traditional values. Pellet heating
is an effective and convenient solution, but sometimes it’s more enjoyable to
use firewood You’ve procured on Your own. GRANDEG BIO series combines the best
of both world, ensuring a high level of comfort and automation, but at the same
time leaving options for the choice of fuel.
With our BIO
series heating boilers, You can use pellets, briquettes or dry firewood, and
switching between various types of fuel won’t take more than 5 minutes. The
special design of the boiler ensures maximum burning process efficiency,
considerably reducing heating expenses, no matter if You use firewood or
The BIO series have a heat output of either 15, 25 or
kW, suited for spaces of up to 400 m2.
The design of the boiler and the burner let You use
pellets or firewood as fuel.
When burning firewood, air flow is generated by
natural draft, but in pellet mode, an air supply ventilator creates
The special design of the boiler reduces the frequency
of burner cleaning.
The convective zone of the boiler is horizontal, and
when burning pellets it is complemented by special turbulator spirals, which
ensure more effective heat absorption.