We spoke today regarding a request I have for a quote for one of your Takagi instant water heater, board-mounted systems. I installed one of your systems about 13 years ago in a 5000 SF house in Mukilteo, WA, with a Polaris gas water heater/boiler, and it has performed beautifully. The only things I have had to replace are the igniters on the boiler and my gas bill is only $136/month.
I would like to use this Takagi system for domestic potable water and a hydronic heating system for another house (see attached). It is a small single story house with an unfinished basement. For now I just want to use the system to heat the main floor but with the thought in mind that I could add loops to heat the basement in the future. My plan is to install 1/2" PEX on top of the floor ("sleeper" system), and install the Takagi system, board, and manifold in the 3'X3.5' closet shown in the attached floor plan, if it will fit.
Please send me a quote as soon as you have a chance.