Call Dacor and tell them you just moved from Denver to the flatlands. See what they say.

Eve72's idea is the way to go. If it's dangerous, they'll tell you.

Sears (NG model) shows the Dacor high altitude to be non-convertible; same for the LP model. Since the high altitude range orifices (or jets, if you've worked with motorcycles or really old cars?) are designed to let in more air to the combustible mixture, at your 1600' there will be waaay too *much* air in the mixture. I'm sorry that I don't know the effect other than that, though I'd think the flames would be bigger and perhapps too big for comfort.

Some mfgrs, apparently including Dacor, that have factory-set high altitude may use different supply lines internally in addition to the different orifices. The supply line difference is pure speculation on my part BTW as to why the range would be nonconvertible so another good question when you talk to Dacor to find out your answer :).

I have the opposite problem of living at 8300' and had to install even more open jets in my Monogram cooktop than the high altitude ones that came with it.

hth

Here is a link that might be useful: Sear Dacor high altitude range example

I also had a great opportunity on a Dacor Heritage 30" NG High Altitude (for 4000'+)and I live even lower (500'). I spoke to Dacor and they informed me that the performance would be comprised due to more air being added to the gas mix. Translation: lower BTUs most likely and there's no real way to quantify how much lower. And there isn't a conversion kit for high altitude to normal altitude...so I had to pass:(