After decades of popularity, open floor plans began to decline in the 2010s. The results of a survey by Rocket Homes found people nearly evenly split on the topic, with 51.2% favoring open floor plans ...

1)Heating by Ambient temp.(DB/WB): 20℃ /15℃ and Water temp.(in /out): 15℃/55℃; 2)Heating by Ambient temp.: 7℃ and Water temp.(in /out): 30℃/35℃; 3)Heating by Ambient temp.: 2℃ and Water temp.(in /out) ...