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.
1 On average, depending on the pool heater that you are looking to purchase, the cost of a pool heater is going to vary anywhere from $800 to as much as $3,000 without any sort of installation. 2  A natural gas swimming pool heater, for example, can cost anywhere from $700 to as much as $2,000. Initial costs for pool heaters, especially solar-powered types, can really be costly according to Energy.gov. 2  Purchase and installation costs for a solar pool heating system ranges from $3,000 to $4,000.