Heat pumps sounds like a good way forward. I haven’t looked into the cost to replace a heater in a home, but I guess new homes could just have them installed by default.
What about natural gas use in home cooking/restaurants? Surely, you can’t just replace that easily.
EDIT: And what about heating water? I mean, natural gas is used for more than heating the space in a home.
That’s a YOU problem, WestJet. Pay your mechanics what they deserve, and treat them like people.