A Hybrid Boiler System is a combination of two types of boilers used in the same system. Slant/Fin Hybrid Boiler Systems combine high efficiency condensing boilers with non condensing cast iron boilers.

How do you decide the make up of a Hybrid Boiler System?
On most existing hot water heating systems generally two thirds of the boiler system capacity will be in the non-condensing water temperature range and one third of the capacity is in the condensing water temperature range. Condensing water temperature is 130F or lower and above 130F water temperature we are above the condensing water temperature. Your mechanical engineer can calculate what percentage of your heating load can be satisfied in the condensing water temperature range and therefore, choose the condensing boiler capacity for your heating plant.

If you have questions about Hybrid Systems, give us a call!
1-800-873-4346