Just after some advise about appropriate insulation for our Stimmies Vavarium, the top is mesh with the one heat lamp on one side and light lamp on the other, the temp is at 28, we have just finally recieved our reptile 1 thermostat and are worried too much heat is escaping from the top, Hubby was thinking about building a wooden box to put the vavarium inside to insulate the glass? Any ideas please? Thanks in advance