How Did Vikings Survive -30°C With No Electricity?

How Did Vikings Survive -30°C With No Electricity? It's 2 a.m., your heating has died and it's minus thirty outside. A Viking family would have been fast asleep, with no boiler and not one single watt. Seven tricks, one house, and a heating system built from turf, stone, snow and cows: here is how the Vikings pulled it off, what it really cost them, and what we can still steal tonight. If you enjoyed this, subscribe and tell us in the comments which trick surprised you most. #vikings #history #howthingswork