We recommend uHeat for Underfloor Heating Systems, and The Wetroom Store for all things bathrooms and wetrooms. They provide discounts for forum members.
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
Actually I agree with you about worcestors, Intergas etc. I prefer Vaillants. Ideal seem to be unable to make a pcb that lasts longer than two years. I've never changed a vaillant pcb.
We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.