I am considering retrofitting my 1100 SF home with Warmboard-R to replace the gas furnace/forced air system I have.

I am considering retrofitting my 1100 SF home with Warmboard-R to replace the gas furnace/forced air system I have. I will also be installing a tankless water heater, would that be sufficient for Warmboard or will I need a separate tank or boiler?

Clients often use a combi-boiler on homes this size. That would be a good option. In most situations, especially for larger projects, a dedicated boiler for the radiant system would be necessary.