heat recovery Denmark

...Single-pole thermal fuse (30-87 ºC) with automatic reset and manual reset (125 ºC).","EFFK":"Heating register designed for flange mounting in rectangular ducts of climate, heat recovery, and ventilation systems. Duct part made of galvanized steel,\n\nIncluded is a temperature limiter with automatic reset and a fire thermostat with manual reset. The air heater is divided into groups of 3 or 4 depending on the power rating."}...