The MiniCombo II heater is a combination hydronic boiler and domestic water heater. The appliance combines the advantages and efficiencies of the JV hydronic boiler (up to 84.5% AFUE) with extremely high first hour recovery rates of a 30 US gallon (113 L) stainless steel indirect storage tank. The unit comes completely assembled and wired from Laars complete with a circulation pump for the indirect tank. The MiniCombo heater is available in gas input sizes from 50 MBH to 125 MBH (14.7 kW to 36.6