2025-03-06http://itsupport.cu.edu.ng:4000/handle/123456789/29097A wooden solar box cooker was successfully constructed with cheap and locally available material with efficiency of .From the various experiments that were carried out, the highest temperature gotten both on the ground floor and at the top of the roof was 720C both on the days with air temperature of 380C and 350C respectively. Efficiency was found to increase with decreasing temperature difference between collector temperature and ambient temperature. Increase in temperature does not necessarily lead to increase in efficiency. Efficiency decreased with decreasing solar radiation.application/pdfQC PhysicsArticle