ᐅ Looking for a double-sided wood-burning stove with water heating, maximum width 88 cm

Hello everyone,
We are building a new house! Brick by brick...
Construction is set to start next week.
200 sqm (2,150 sq ft), KfW 70 standard. Fully underfloor heating without a basement.

The main heating source will be GAS. There will be a 750L (198 gallons) hot water storage tank and 4 solar panels for hot water generation!

As additional support, I would like to have a fireplace insert.
It should be located between the study and the living room.
Since the study also has access to the second terrace where the firewood is stored.

Now my question:
Is there a water-heated tunnel or see-through fireplace insert available with a viewing window wider than 88 cm (35 inches)?
I’m mainly interested in the width of the glass for the look.
I know it’s less efficient with two glass panes, but that’s acceptable. It just looks great.

If you could help me find a suitable product, that would be great.

According to my architect, 10 kW output is sufficient.

Thanks in advance for your help.
Best regards