[edit on Wikidata] Spinal anaesthesia (or spinal anesthesia), also called spinal block, subarachnoid block, intradural block and intrathecal block, is a form of regional anaesthesia involving the injection of a local anaesthetic into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long.
Calculate the amount of square inches that needs to be rebuilt. The rebuilding cost runs approximately $100 to $200 per square inch. This is determined by the materials used and the labor cost, which you can save on if you are rebuilding the chimney yourself.
1 You may need a new chimney liner if youâre upgrading to higher efficiency boiler. 2  Generally, this costs about $300 to $700 for gas and $700 to $1,800 for oil. 3  Removal of the old unit can range from $300 to $1,500 or more.owever, there are other factors that could swing boiler installation costs higher or lower. 1  You may need a new chimney liner if youâre upgrading to higher efficiency boiler. 2  Generally, this costs about $300 to $700 for gas and $700 to $1,800 for oil. 3  Removal of the old unit can range from $300 to $1,500 or more.