DIA DOXA FOLEX products

A heat storage tank is a tank in which the thermal agent (water, antifreeze, ice) is accumulated and which releases it when needed. A puffer is indispensable when you want to make the heating system of a building more efficient.

In this context, the idea of the Romanian inventor Breaz Laurentiu was developed to create opaque envelopes (walls, floors, roofs) performing in terms of thermal insulation and mainly resistance, to be built from modular elements (replacing bricks, pillars, beams and classic concrete slabs, wood or other "traditional" materials) easy to assemble, which compete for the creation of durable, attractive, comfortable and energy-efficient buildings, according to the performance requirements of the "Passive House", "Zero Energy House" concepts ", "Active house".

For the design and construction of "Passive Houses"/"Zero Energy Houses"/"Active Houses" it is necessary to approach their fundamental element, namely the creation of walls, floors and roofs (building envelope) characterized by a very high degree of thermal insulation insofar as it falls within the international standards in the field, namely the average annual energy consumption for heating does not exceed 15 kWh/m2, the annual thermal load does not exceed 10W/m2, the average annual primary energy consumption does not exceed 120 kWh/m2, the value of the decks thermal resistance cannot exceed Ψ=0.01 W/m (practically without thermal bridges), the value of the thermal transfer coefficient (U) does not exceed 0.15 W/(mpK), the frequency of overheating (temperatures above 25°C) does not exceed 10 % during the summer.