Hi, i'am remodeling my house in NY 12603. It's a major overhaul. There was an air-forced furnace with ducts, but the house was abandoned for 8 years and i decided not to mess with a system that has no records of previous proper work. I will be installing 2400 ft of radiant pex pipe on top of subfloor and then covering it with laminate and tile, and in the basement walls . Maximum 2 heating zones. The house has 2000 sq ft x 8ft ceilings of heating space. There will be 11 new windows with u-factor of .28. The walls are 2x6 with R19 inside. The attic will be R38 at least and the basement is XPS R10 and fiberglass R15 can be easily added to the studs. There will be natural gas line. The consumption will include boiler, range, dryer and outside grill. CenHud suggested to install Navien 240 with the help of a captive installer. The quote is 9K minus incentives - total 5K out of pocket. Not bad but to me it's not an optimal solution. In search of reviews i found your forum. I've had Viessmann tankless combi-boiler. Non-condensing one. It gave me only headache - skipping switching from water heater mode to heating, some errors, heat exchanger has licked in 5 years. At the same time in my primary house i have Peerless cast iron 'gorilla' 87+BTU with indirect water heater and it works fine since it's been installed in 2004.
After reading some forum threads i understand Navien 240 is an overkill and it can have problem modulating with all the tees and other gas-consuming equipment. Plus it doesn't leave room for a margin error with an installer. As long as i will combine radiant heat installed by me and their's installation the errors are anticipated. I need simple but effective solution. I open to suggestions
After reading some forum threads i understand Navien 240 is an overkill and it can have problem modulating with all the tees and other gas-consuming equipment. Plus it doesn't leave room for a margin error with an installer. As long as i will combine radiant heat installed by me and their's installation the errors are anticipated. I need simple but effective solution. I open to suggestions