I am building a new house and am looking into installing a Tankless Water heater to supply hot water to the house and heat the infloor system in the basement. The supplier to the builders plumbing contractor is recommending a Navien CR-240A and closed loop heating box for the application. I have read up on the Navien in the forums here and it seems they have some issues. Can anybody recommend a brand and or system to use in this application. Originally the builder had quoted me on a boiler for the infloor heat and a Tankless system. The boiler seems to be a waste to me if I am gong to go with a Tankless system.
To give you an idea of the application the house is a 2700 sq/ft two story with 1500 sq/ft of developed basement (infloor heat). There are 3 1/2 bathrooms. I want a system in which 2 showers and one faucet can be used simultaneously.
Any advice is appreciated.