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.
Water Heater Size. The size of your water heater may influence the cost of repairs, since accessing, emptying, or maneuvering the appliance can become more difficult as size increases. Average repairs on a small 30 gallon tank heater cost $122, compared to $156 for a 40 gallon unit and $171 for a 50 gallon tank. Tankless water heaters do not store supplies of hot water, but are available in a variety of sizes to meet the needs of your household.