What's the hardest type of #diy project to start with?

Pretty stoked to replace my water heater with a heat pump model! Help from a friend made it a ton easier but I'm glad to retire the old natural gas model for something that sips less than $100/year in ⚡⚡ ⚡ #green #diyhomeprojects

@natet88 so you giving this a try or still not sure?