Should I replace my 30 yr old Weil Mclain hot water boiler?
We just did an energy audit on the house we moved into at the end of the year . The house was built in 1928.
The audit laid out what we could do to reduce the utility bills. The biggest thing is adding insulation and replacing the boiler to more energy efficient one.
There are some monetary incentives that the gov't is giving todo the insulation and the replacement of the boiler. The insulation will cost us about $2800 after $2000 rebate (supposedly will save us $700/yr for heating). The replacement of boiler is one that I have no idea. I called out plumber and haven't heard from him yet. The gov't rebate will be $1500 for a boiler with >96% AFUE rating (supposedly will save us $300/yr for heating).
We could just get the insulation but our boiler is over 30 years old now and I am afraid that it will go bad soon. And we could use %0 energy loan for both the insulation and the boiler if we are approved for the loan (we can get loan just one time - not one for insulation and another one for the boiler after we think about this for a while). We sort of have to get the insulation soon since they give you only a month to get your incentives after the audit.
I really don't know anything about boilers... Should we keep our fingers crossed and keep our boiler? It has work find past winter. It's distributed in 1981 (called Weil Mclain to find out). The BTU is 110000 and the living space in the house is 1850 sf with unheated basement and unfinished attic. The model # is CGM-5 with serial #7.
Are old boilers built better than what we will get now? What is the lifespan of a how water boiler? Does anyone know what it cost us to replace one with high efficiency as >96% AFUE rating? We live in greater boston area in MA.
Thank you so much!