Gas based hydronic heating

Mati

Hope this is the right forum to post my question. We are planning to build a new home in Iowa. We grew up in homes heated with hydronic water baseboards, and we like it a lot. It's not as common to have hydronic baseboard heating systems around here. We talked with two builders and they said they need to do more research.

So, here we are, trying to come up with a good system configuration for our new home.

The house is going to be 1300 sq ft total on two levels with full basement (unfinished)

Ideally, we would like this kind of system: geothermal heat + heat pump + underfloor heating for bathrooms/kitchens + a tiny boiler for hot water for showers and baseboards.

AC wise we thought about mini-split system. However, it may be hard to get the cooling in the baths. So maybe we will have to go to the forced cool air for aesthetics and convenience.

I am not sure what the best approach would be. Of course, budget is of concern. We are aware that this may be more expensive than traditional hvac systems.

In our area this type of heating is very uncommon. We may drop the geothermal if it proves too expensive. We are looking at our options at this point.

We have natural gas in the area as well.

Thanks.

SWEI

Heat pumps

whether air-source or water-source, can be used to provide both heating and cooling through the same distribution tubing, whether embedded in the floor, the walls, or the ceiling.  Doing so can satisfy most or all of your sensible cooling loads, significantly reducing both size and space requirements for the ducted or ductless cooling equipment that handles your latent cooling loads.