TopGas® comfort
Exhaust/fresh air connection

enables operation independent of the room air, permitting installation in living areas.

Air blower for optimised combustion
Condensation heat exchangers

made of corrosion-resistant materials with excellent thermal conductivity for high energy yields.

Efficient grid burner system

provides for clean and low emission combustion.

A-label pumps

for an economical operation

Control panel with electronic heating circuit control

Practical and compact – everything integrated in a single housing.

TopGas® comfort


TopGas® wall-mounted boilers offer compact and advanced gas heating technology built to the high quality standards of Hoval. Due to the condensation technology the TopGas® boiler is approximately 15 % more efficient than your non-condensing boiler. 

Fully equipped for demanding comfort needs. For flats, entire floors, and single-family and multi-family homes (figure).

Low in emissions and consumption
Savings with energy costs
Compact, complete system
Top quality