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 Technologies develops efficient propane-based heat pumps for demanding heating and cooling projects requiring reliable thermal solutions. As an established European producer, the company specialises in natural refrigerant technology engineered for regulatory compliance, supplying propane heat pumps, propane cooling systems and advanced refrigeration equipment to customers across international markets.