About what did somethaing like this cost?
We were able to do it for about $1.92 sq/ft. for just parts.
That's everything you see as far as equipment.
There's $3500 just in copper on the primary loop.
I can more then double the heating area on the existing boiler plus I'm all setup to add a second one if I decide to go beyond that. So future expansions will be around half the cost.
We have since added to our other system which uses variable speed pumps with a zone valve for each bed. The tubing and manifolds for that area are identical.