It's too bad. Seems Harman doesn't even communicate well with it's dealers.
My Harman is a great stove, extremely well built and I expect it will last many years.
If I were considering a new stove or boiler I would go with Leisure Line or EFM, mainly because of the quality of the product and representation here on the forum. You can get the answers you need right here.
In business the worst mistake you can make is over promise and under deliver. It's supposed to be the other way around, for example "I'll have you stove on Sept. 20" and then you call the customer on Sept. 5 and say "Your stove arrived today".
A satisfied customer may tell 2 or 3 others, a dissatisfied customer tells 10 or more others.