I see how much the taxes are and Anova’s shipping charge but are there more costs when it crosses the border?
I just checked on their website and it appears they still have free shipping. (I’d also take a look and find a discount code if I were you - or order when they have discount codes available). As you’re ordering in USD, the exchange rate soaks us a bit.
There is no duty being charged, as Anova has a warehouse facility in Canada.
Here’s how mine worked out:
Discounts : $-50.00 USD
Subtotal : $149.00 USD
HST : $19.37 USD
Shipping : $0.00 USD
Total : $168.37 USD
Well worth finding a discount code. 
I’m in Montreal and Ordered one in October. it came from the states and I was charged about $50 in duties.
I guess you had the misfortune of ordering before I did. Mine was also ordered in October and it shipped November 9th.
It took them a bit to get their Canadian warehouse stocked. (one of the dangers of doing a pre-order on a brand new unit - the distribution channel isn’t filled yet).
New orders should ship out of Canada - so no duty.
Have you any invoice of it?