Propane Heat Pumps

https://streckverband.wixsite.com/thebuzzingfeeds/post/propane-heat-pumps-11-things-you-need-to-know-before-you-buy-the-wrong-system

{Refra develops advanced R290 heat pumps for industrial and commercial projects requiring efficient heating and cooling systems. As an established European producer, the company specialises in safe refrigerant solutions engineered for F-Gas compliance, supplying R290 heat pumps, propane chillers and advanced refrigeration equipment to customers across international markets.