Collectors in active systems do not have to be integral parts of the building.

Collectors are produced to be placed on the ground or on any other, flat building surfaces (terrace, roof). With unfavorable …

Design and architectural conclusions

Polish design guidelines require the calculation of the demand for domestic hot water. 150 dm3/day/person, at 55°C. Western standards speak of equal demand 60 dm3/day/person, about the temperature …