Pellet thermostoves


pellet stove for water heating

The contemporary design, rounded edges and simple lines make it a stove capable of adapting to any style and decor. The large silk-screened glass emphasizes the broad vision of fire. The small regular buttonholes on the sides and on the front wind the whole body of the stove. The inclined display allows easier reading of data. The color of the back of Isola recalls the front. The coating and the structure are in painted steel. Isola is available in three colors: cream, metallic grey, glossy bordeaux.

Customization and adaptability to any type of environment

Possibility for the user to adjust the pellet combustion calibration

Predisposition for the combustion air channeling

Silence and maximum comfort

Reduction of consumption of pellets for greater savings

Reduction of polluting emissions

Maximum adaptability to all types of pellets, to the flue and to the different types of installation

Minimal and easy maintenance: the cleaning of the stove is quick and easy

High yield to water

Flexibility of installation thanks to the different types of system that can be set

Possibility to set the operating and starting water temperature of the circulator

Possibility to connect the thermostats and the room temperature probe

Possibility to connect the temperature probe and to set the temperature of the puffer

Possibility to connect the temperature probe and to set the boiler temperature

Optimal management of the three-way valve for the production of domestic hot water

Possibility to install the domestic hot water production kit

Possibility of combining with another generator

Possibility to install the primary and secondary circuit separation kit


structure body and cladding: L 66 x P 71 x H 128 cm

Swiss ordinance on Air Pollution Control (OlAt) Swiss ordinance on Air Pollution Control (OlAt) German order against air pollution Austrian federal standard art. 15a European reference standard for pellet stoves European Directive for biomass domestic appliances: stoves, fireplaces and kitchens (Regulations UE 2015/1185) European standards conformity mark

Available versions

glossy bordeaux

glossy bordeaux

metallic grey

metallic grey



Technical data

  classe-AA classe-AA classe-AA  
  AP_5stelle_2018 AP_4stelle_2018 AP_4stelle_2018  
  AQ 21S AQ 27S AQ 32S  
thermal power 21,7 28,5 34,5 kW
nominal thermal output 5,6 - 20,5 5,6 - 26,5 5,6 - 31,5 kW
heat output tranferred to room air 1,0 - 1,5 1,0 - 1,5 1,0 - 1,5 kW
heat output transferred to water 4,6 - 19,0 4,6 - 25,0 4,6 - 30,0 kW
CO emission at 13% oxygen 0,003 0,003 0,005 %
efficiency 94,5 93,0 91,5 %
fuel consumption 1,3 - 4,7 1,3 - 6,1 1,3 - 7,4 kg/h
smokes mass flow 8,9 - 12,7 8,9 - 16,6 8,9 - 19,7 g/s
smokes temperature 66 - 106 66 - 132 66 - 153 °C
flue draught pressure 11 11 12 Pa
fuel capacity 55 55 55 Kg
autonomy 42-11 42 - 8,5 42 - 7 h
fuel exit pipe Ø 100 Ø 100 Ø 100 mm
combustion air intake Ø 80 Ø 80 Ø 80 mm
net weight 210 210 210 kg
weight with packaging 230 230 230 kg
* with the conditions listed in the General Catalog


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