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Indirect hot water heater
Advantages galore, Saul. More hot water, better operating efficiency by demand starting the boiler (it runs only on a call for heat or hot water) and longer life are just the highlights.......we've seen an average of 25-30% fuel savings by switching from tankless coil to an indirect. All systems are different and your's is no exception. Depending on the type of system you have and the way you make hot water, you can see a payback in 3-5 years. so it's definitely worth looking into.