On the phone-in: Experts Eric Murphy and Barry Walker answer questions about heat pumps and other heating and cooling systems. And off the top, we hear about stranded sperm whales off PEI.

On the phone-in: Experts Eric Murphy from Halifax Heat Pumps and Electrical and energy efficiency advisor Barry Walker answer questions about heat pumps and other heating and cooling systems. And off the top, we speak with Tonya Wimmer, executive director of the Marine Animal Response Society about three stranded sperm whales off the coast of PEI. And we also hear about the only grocery store in Salisbury, NB, burning down.