Another thing to consider is what is the liklihood that all circuits will not be energized at he same time. If not, or there are circuits with short duty cycles, then the conduit fill issue becomes moot.
I installed several of the Fahrenheat (by Marley) Hydronic baseboard heaters controlled with a Dimplex proportional thermostat. Originally, my intention to heat my 1000 ft^2 space was a Napoleon wood burning stove as primary heating, and the hydronic heaters as secondary - for times when it...
How much of that $6K is labor? I installed my Mitsubishi mini-split consisting of one 2 ton head and one 1 ton head. Have you considered installing yourself? Also - price shop[ online - you can get them much cheaper online. The mini-split technology is also much more efficient than...