... , large area heat-accumulating in the ground, heat-dispelling slowing, hot insulation is good enough to keep the indoor warm even ... : residence, market, hotel, gym, hospital etc.2, Hot-water heating system: common bathing pool, hot spring, indoor swimming poor. 3, soil warming& heating ... PE-Xa heating pipes, PE-RT geothermal pipes, PP-R hot/cold water pipes, PP-R fittings and manifolds. If you ...