Proven dimpled tubes ensure a consistent,

excellent heat transfer

Control panel

with microprocessor-based Hoval TopTronic®T operating control

Max-3 enables a flexible design

either with a fully automatic 2-stage or modulating oil, gas or dual fuel burner.

Insulated hinged front door

for easy cleaning and quick access to the combustion chamber.


The Max-3 boiler has a three pass design and dimpled tubes on the gas side. This commercial boiler which runs on gas, oil or dual fuel has high efficiency with low NOx emissions, and as such makes good economic and environmental sense.

Max-3 boilers are available as heating only applications for medium to large commercial buildings. They are suitable for both new build and replacement projects. Maximum operating temperature is 105°C and maximum working pressures is 6 bar.