首页 › The Construction of the Small House A Simple and Useful Source of Information of the Methods of Building Small American Homes, for Anyone Planning to Build › 第 72 题 5. Is the radiator steel or a high grade of cast-iron? 6. Is the inner casing so well insulated that it
prevents premature heating of the descending
air-currents?
7. What protection is there to prevent the chance
passage of smoke into the warm air-chamber?
8. Is the outer casing properly insulated to prevent
the waste of heat into the cellar?
The Construction of the Small House A Simple and Useful Source of Information of the Methods of Building Small American Homes, for Anyone Planning to Build · 第 72 / 98 题