Electric boiler for Radiant heat monthly cost

Fetch

I know there are a great deal of variables here but I'm trying to get an idea of a monthly cost for radiant floor heat with an electric boiler. This is for a new construction home with the main level only having radiant heat and is 1900 sq ft. I've been told this will take between a 15kw and 20kw electric boiler. Electricity is .10 per Kwh which is cheaper than Propane in my area. My other option is to do Ductless heating and cooling for this space. I'm thinking that the ductless will be more efficient but maybe not as comfortable. Anyone have a guess on what I would spend to heat this space in Seattle WA?

SWEI

If electricity cost less than LPG

I'd be looking at a heat pump for that climate.



http://www.eia.gov/neic/experts/heatcalc.xls will tell you the rest of the story.



Estimating annual costs would require a heat loss calculation and some degree-day data, preferably with a bit of local knowledge.  Paul Pollets might be able to help there http://www.heatinghelp.com/professional/95/Advanced-Radiant-Technology-LLc