My new unopened water heater that I cannot use due to discontinued propane service cannot be exchanged for an electric tankless unit because we are past the 30 day limit. I now have a new water heater that is useless to me, I was told nothing can be done, so what do I do with this new unit, just throw it away? I wasn’t told about a 30 day limit, just the 90 day return window, so basically I was lied to. Where do you think I should get the new tankless unit from?