Why does not freshwater lakes become salty eventhough it meets ocean at somepoint? Do oceans grow more or less salty over time? If the oceans were only as salty as a fresh water lake, and had always been that way, would there be more life in the oceans that had evolved ...
Replacing a boiler typically costs an average of $50-$300, but this price can be drastically higher depending on where you live and the location of the boiler. Replacing leaking, aging, or bad ductwork costs an average of $35-$55 a linear foot for labor and materials, depending on the length and type of ducts.
BOILER INSTALLATION COSTS. If youâre replacing an old boiler, expect boiler installation costs for mid-efficiency system to cost about $2,500 to $4,000 (80 percent efficiency), and boiler installation costs for a high-efficiency system to cost between $5,000 to $9,000 (90 to 97 percent efficiency).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.