To　alleviate　the　problem　of　global　warming　and　the　energy　crisis,　this　study　proposed　an　integrated　collector　storage　solar　air　heater　that　uses　evacuated　tubes　as　solar　absorbers　and　paraffin　as　thermal　storage　material.　In　the　proposed　unit,　lap　joint-type　flat　micro-heat　pipe　arrays　serve　as　heat　conductors　that　transmit　the　solar　energy　absorbed　by　the　evacuated　tubes　to　the　thermal　storage　tank　or　transfer　the　heat　stored　in　the　tank　to　the　air　flow　channel.　Outdoor　experiments　were　carried　out　to　obtain　the　thermal　performance　of　the　proposed　device　during　charging　and　discharging.　The　effects　of　weather　conditions,　supply　air　flow　rates,　and　inlet　temperature　on　the　thermal　response　of　the　integrated　collector　storage　solar　air　heater　were　reported.　The　thermal　storage　efficiency　during　the　experiment　period　ranged　from　56.1%　to　67.5%　when　the　mean　outdoor　temperature　ranged　from　-5.7　degrees　C　to　36.2　degrees　C.　The　mean　thermal　extraction　power　and　thermal　released　efficiency　reached　1268.8　W　and　98.5%,　respectively.　The　results　of　the　energy　conversion　process　analysis　and　mathematical　fitting　showed　that　the　mean　charging　efficiency　was　linear　with　the　normalized　temperature　difference.　The　mean　outlet　temperature　and　mean　extraction　power　were　linear　with　the　inlet　temperature　and　exponential　with　the　air　flow　rate.　A　conceptual　design　of　an　air　heating　system　using　the　integrated　collector　storage　solar　air　heater　for　a　9.9　m(2)　building　was　presented.　The　benefit　pre-evaluation　revealed　that　the　system　can　reduce　carbon　emissions　by　approximately　5.8　tons　over　its　life　cycle.