Kostrzewa Twin Bio Luxury Compact NE 8 Notice Technique page 85

6. Installation
85
i. Top door
This door is located on the upper side of the boiler, under the cover (dismounting – see „Installation"). It allows for easy cleaning of the exchanger walls and baffles.
It has double thermal insulation. The exchanger's baffle is fitted into a special groove in the insulation plate, which closes the flue gas circulation.
Twin Bio Luxury Compact NE v01 User Manual – EN 01.19
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