List of largest stars. Not to be confused with List of most massive stars. Below is a list of the largest stars so far discovered, ordered by radius. The unit of measurement used is the radius of the Sun (695,700 km; 432,288 mi).
1 According to HomeAdvisor.com, the average cost nationwide to repair a swimming pool heater is about $400 to $600.2  Based on the type of repair and local pricing, however, actual repair costs could be significantly higher or lower. 3  A recommended annual pool heater tune-up costs $100 to $200.eated pools allow for a longer swimming season than non-heated pools, but they have a higher cost of ownership. In addition to the fuel needed to run a swimming pool heater (at least if itâs electric or gas; free-energy solar heaters are also available), mechanical upkeep is also required.
A solar pool heater can range in cost from about $3,500 to $8,000 with the average system costing around $5,500. Costs vary due to size of your swimming pool, desired water temperature, amount of exposure that the pool has to sun and shading, and, finally, the direction that the solar panels will face on your roof.