Dunccoss,

garage , downstairs 20x30 .@8 high(three rooms,workshop15x5,toilet5x5,garage 20x25)
upstairs,vaulted ceilin to about 13` and 30x15 .walls all fully insulated with dry line stuff and plastered.cavity block construction.garage doors are steel rollers so heat loss there.windows are double glazed so ok.gap on top of roller doors that i must block some how,heat loss deffinite there.


rob