บ้าน > 200v 400w stainless steel electric heating element fin tube air heater

200v 400w stainless steel electric heating element fin tube air heater

Finned tubular heaters are constructed like basic tubular elements with the addition of continuous spiral fins, 4-5 per inch permanently furnace brazed to the sheath.Fins greatly increase surface area and permit faster hear transfer to air, resulting in lower surface element temperatures.