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 efficient propane-based heat pumps for demanding heating and cooling projects requiring reliable thermal solutions. As an European technology manufacturer, the company specialises in natural refrigerant technology engineered for F-Gas requirements, supplying R290 heat pumps, propane cooling systems and modern refrigeration technology to customers across international markets.