Non-condensing vs. condensing boiler operation costs...

The TriAngle Tube non-condensing combi-boiler had been replaced last September with Viessmann 222-F, B2TB combi-condensing boiler. In our digital age, where every data is collected and made available for consumption, swapping the boilers just prior to the heating season lends itself to compare operational cost for the same period. If for nothing else, to verify the much advertised savings, that condensing boilers provide. Well at least, that's how most companies/contractors sold this solution. Over all, yes, the condensing boilers certainly will lower the operational, albeit not to the magnitude as advertised. Especially, if the increased electricity utilization for the condensing boiler is taken in to account. Here's the last seven month energy utilization, observed in the same house/environment with different boilers: That's an average of $12.56 savings with electricity utilization taken into account. Projection for one year savings results in $150.75, that doesn't even cover the yearly maintence cost for the condensing boiler. Maybe the next five month operational cost will decrease when compared last year and the operational cost decrease breaks even with the yearly maintenance cost, but that's a big if at the moment. Don't take me wrong, I like my condensig boiler, it is quiter, provides more even heat and unlimited DHW. Even if I take into account the installation cost for the condensing boiler. Just don't believe the boiler company and the contractor advertised saving with the condensing boiler. PS: Comparing the operational cost for different type of boilers is fair for the same house/environment.