| 摘要 |
Invention herewith described refers to the ECO-draft heater for environmental fire setting. Use of the present invention in the thermal engineering obtains faster, easier and more environmentally sound fire setting in the conventional boilers and furnaces for space heating. A low power electric heater which is attached to the metal parts of the flue from the outside, heats the air in the flue. Hot air is lighter than cold air and it rises up. From the firebox to the top of the flue there occurs the stream i.e. the draft, which is required for the fire setting especially when the flues are cold.
|
