In Part 2 of our series on the worst case scenario for an air-source heat pump, improvements were made, the post reno energy audit is done and we check back a year later after installing an air-source heat pump in a cabin with 2x4 walls and R12 insulation in the cold Canadian north. Full story GreenEnergyFutures.ca VIDEO story https://www.youtube.com/greenenergyfuture/ GreenEnergyFutures.ca CKUA.com Podcast Subscribe to hear new stories every week - check back on our more than 400 stories!