Bosch Thermotechnology Heating Reviews and Ratings

Net I=B=R Capacity (BTU)

I=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating. -

Enter Net I=B=R Capacity (BTU) Range Minimum Value To Enter Net I=B=R Capacity (BTU) Range Maximum Value

40000 - 49999 (1)

60000 - 69999 (1)

70000 - 79999 (2)

100000 - 109999 (2)

110000 - 119999 (2)

DOE Heating Capacity (BTU)

Also referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity. -

Enter DOE Heating Capacity (BTU) Range Minimum Value To Enter DOE Heating Capacity (BTU) Range Maximum Value

50000 - 59999 (1)

70000 - 79999 (1)

80000 - 89999 (2)

110000 - 119999 (2)

130000 - 139999 (2)

Maximum Input Capacity (BTU)

The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used. -

50000 - 59999 (1)

70000 - 79999 (1)

100000 - 109999 (2)

130000 - 139999 (2)

150000 - 159999 (2)

DHW Production

DHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories. -

No (5)

Yes (3)

Product Height (Inches) -

5 - 6 (2)

33 - 34 (8)

Product Width (Inches) -

3 (1)

6 (1)

17 (8)

Product Depth (Inches) +

1 (2)

13 (8)