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I am interested in converting to gas heat. I already confirmed with National Grid that it would be no cost to run the line to the house.
2100 square foot house with about 200 feet of baseboard.
Newly installed (6/24/2014) 40 gallon Techtanium indirect hot water heater.
So far I received 5 different quotes. The last company recommended a high efficiency Navien NCB-240 combi. They said I would not even need to hook up my hot water heater since I only have 2 full baths. All of the other quotes used more conventional cast iron boilers like the Burnham ES25.
Is it worth going with the high efficiency Navien? How much of a savings would I get if i chose this over a Burnham ES25 hooked up to my hot water heater? Which one is more reliable, I read some mixed reviews about the Navien online.
None of the plumbers conducted a heat loss test. Based upon my calculations using the Slant Fin program, I came up with approximately 80,000 BTU loss. Do I need to include my unfinished, unheated basement and crawl space in this calculation?
Are there any plumbers near Melville NY who are willing to provide a quote? I checked the contractor section of the forum and did not find one within 10 miles.
Thanks for your help,