1 Then, on your itemâs page in Greenlight, under Owner Controls in the right-hand column, there is a link to Add/remove Contributors.  Click the link and select anyone from your Steam Friends list to add as contributors.
A solar pool heater can range in cost from about $3,500 to $8,000 with the average system costing around $5,500.here are three types of pool heaters to choose from solar, gas and electric: A solar pool heater can be installed for $3,500 to $8,000. Since the sun is free, it will cost you nothing to heat your pool from April through November.
Pro: One advantage of solar pool heaters are that solar is the least expensive way to heat a pool. After the initial purchase of the solar heating panels you receive free heat from the sun. If you have a southern exposed area large enough to install at least 50% of the pool surface area in solar panels, and it's close to the filter system - you can very effectively use solar pool heating.