Boiler efficiency 80 or 90... worth the higher price?

QUESTION:

i've recently have received estimates on peerless boilers for my home. i would like to replace the old one this year and i received a quote for a model with 80% efficiency and one with 90% efficiency. the 90% one is pricer at about $1,500 more. i know it's a long term investment but is it really worth it? is there a real difference between the two?

ANSWER:

There's some good and accurate answers here, but also take this into consideration. With the improvement of 10% the added controls used in this boiler increase the potential for mechanical failure thus incuring a service call and a monetary lost to the initial cost pushing your recovery of cost further into the future. I would say stay with the 80%


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