In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Interesting discussion. I have installed the necessary pex tubing in my basement and garage for radiant heating. I was about to purchase a 155,000 BTU condensing high efficiency propane boiler (natural gas not available in my area), and my supplier recommended using a modulating electric boiler instead. He said operating cost, as well as initial cost would be cheaper. His claim was that the electric boiler would monitor the return and supply temperature of the water, and only use enough energy to re-heat the supply water to the required temperature. This would save money because, in the hydronic radiant system, the boiler does not operate all the time, and that the propane boiler would waste energy because it fires up "at full capacity" thus wasting energy. So, even though the conventional wisdom that gas is more efficent than electricity for heating water, the cost of using an electric boiler for this application will be lower.
Any thoughts, opinions, or suggestions?