The Quadro-Secura® builder’s package for split heat pumps for buildings with basements of the DOYMA brand promises an all-round carefree solution for house entry. In particular, the customer benefits from DOYMA’s 25-year warranty. The house entry is the penetration of the outer building envelope. Here, by means of the builder’s package, an optimal compaction can be carried out in simple steps, as it corresponds to the current state of the art and legal requirements.

+ quick and easy installation by only one person
+ Easy-Fix system