Key Takeaways. The average cost of a water heater expansion tank is between $90 and $350, with the average cost being $220.; Water heater expansion tanks typically vary in size from 2 to 5 gallons ...

The cost to replace a water tank ranges from $825 to $6,100, with an average price of $2,000. ... Be sure to consider the long-term costs when deciding which water heater is best for your home.

Which 10-gallon aquarium is best? 10-gallon aquariums are a great pick for anyone looking for a medium-sized community or coral tank. 10 gallons may seem like a lot, but it’s actually the ...