Planning to build a new house and want to take the opportunity to fulfill an old dream of having a wine cellar.

It will be a house with a walkout basement, and we plan to have the wine cellar on that basement level. The wall behind will be made of leca blocks. We will have hydronic underfloor heating, and from what I understand, you should preferably not install underfloor heating in the wine cellar. We will then place styrofoam/insulation in the concrete floor between the adjacent rooms to prevent cold from seeping in from the wine cellar and heat from entering the wine cellar. Does anyone know how thick the insulation should be?

Insulation will also be placed in the walls. Does anyone know what the thickness should be here as well?

We will have geothermal heating. Wondering if it can be utilized in some way?

Grateful for any help I can get!
 
If I understand you correctly, the wine cellar will be located in the interior part of the souterrain floor. If you insulate the surrounding walls and floor (and door) as if they were exterior walls and refrain from having a heat source in the wine cellar, the result will probably be reasonable. The temperature will vary with the seasons but still be quite cool. The big problem with wine cellars is that they require character...
 
Bowser
You can install a floor heating loop in the room but keep it turned off.
It might not be a wine cellar forever, and then it won't be extra work to get the heating running.
Just a thought.
 
Insulating as Justus says, if the geothermal heat pump is in an adjacent room, I would have drawn a partial brine flow from the pump through a separate radiator/chilled beam to have the ability to cool if it gets too warm. Admittedly, this cooling addition would work best in the winter months, but if you have warmth in the apartment even in winter, then...

One more thing that was brought up earlier, creating a fine wine cellar is difficult, making a poor one is easy. And if you don't have wine to fill it with, I wouldn't do it at all. =)
 
Thank you for your answers.

It's hard to fill a wine cellar before you have one ;) But believe me, it will fill up quite quickly.

So no insulation in the floor between the warm parts and the wine room?

I'm a bit tempted to have glass doors to the room. It will be considerably more expensive, admittedly. Do you think one could go with regular patio doors?
 
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