I originally called for repair of a natural gas wall heating unit. Because it was older and difficult to work on, the repair was expensive and no guarantee of the longevity of the unit if other things went wrong. So I pursued purchase and install of a new unit. Due to shortages happening all over the world with transit issues, my choices were limited and more expensive than I budgeted for. Steve went above and beyond researching a quality unit with a good warranty that would work within the budget I set for myself. Thank you all.