1. Forced hot air furnace, 2550 sq ft colonial in CT. Two zone heating (EWC controls) was installed when house was built in 1992. I'm getting multiple quotes and the 2nd guy says I should replace the two zone dampers. He says they could fail and recommends they be replaced during the conversion. I asked if this was like being told to replace a car's water pump when replacing the timing belt. So, do Zone dampers fail and, if so, would it be "smart" to replace them during the conversion?
2. Re DHW - the first two companies have led with Tankless. I have read here and other places that they require more maintenance and can cost more (still true today??) and monthly savings are not that large. We raised to kids here with a Boch 32e with only few "no hot water" screams and now there are just two of us. I can live with a 90% eff tank and don't need 96+ from a tankless. Is my conclusion misguided or misinformed?
I know price is not to be discussed here but when I balked at Navien Tankless, the reply was a AO Smoth GPHE-50 for more $$$?
I welcome any comments. I also want to thank Aaron in Maine for suggesting I go with LP if the NG is not here before heating season due to the cracked heat exchanger on current oil fired furnace.
Thanks
2. Re DHW - the first two companies have led with Tankless. I have read here and other places that they require more maintenance and can cost more (still true today??) and monthly savings are not that large. We raised to kids here with a Boch 32e with only few "no hot water" screams and now there are just two of us. I can live with a 90% eff tank and don't need 96+ from a tankless. Is my conclusion misguided or misinformed?
I know price is not to be discussed here but when I balked at Navien Tankless, the reply was a AO Smoth GPHE-50 for more $$$?
I welcome any comments. I also want to thank Aaron in Maine for suggesting I go with LP if the NG is not here before heating season due to the cracked heat exchanger on current oil fired furnace.
Thanks