Proper dimensioning of the chimney is a very important premise for optimum boiler performance.
The purpose of the chimney is to take out the products of combustion but also to secure necessary air
draught in the boiler. The graph shows how to chose the necessary height for the chimney as a func-
tion of chimney opening. Proper chimney insulation is very important and should be at least 50 mm thick.
Depending on the necessary draught of the boiler, the cross section and the height of the chimney
are determined. Please advise technical material given by chimney producer. Minimum chimney height
for TKK3 max 120 wood boiler is 9 m. Estimate for chimney height is given in the technical data
chart. Round chimney made of stainless steel modules is recommended in order to keep the condensation
influence low.
4
Boiler installation
4.1
Fitting the boiler to a closed central heating system
Depending on the position of the boiler in relation to the pipe-work and the radiators – the installation
can be carried out using one of two methods.
4.1.1
Installation method 1
If the boiler is positioned on the same level or higher than the pipe-work and radiators.
Each of the following items of equipment shall be fitted along the flow line:
1. Aeration vessel.
2. Safety valve (spring valve is recommended).
3. Expansion vessel.
4. Boiler valve.
5
