{"id":24809,"date":"2015-12-01T08:00:35","date_gmt":"2015-12-01T13:00:35","guid":{"rendered":"https:\/\/retrofitmagazine.com\/?p=24809"},"modified":"2015-11-30T07:26:52","modified_gmt":"2015-11-30T12:26:52","slug":"pre-set-required-pressure-value-closed-loop-hydronic-systems","status":"publish","type":"post","link":"https:\/\/retrofitmagazine.com\/pre-set-required-pressure-value-closed-loop-hydronic-systems\/","title":{"rendered":"Pre-set Required Pressure Value of Closed-loop Hydronic Systems"},"content":{"rendered":"