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Home » Gas Boilers » Greater Than 90% Efficiency Gas Boilers

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Greater Than 90% Efficiency Gas Boilers
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Bosch Thermotechnology (8)

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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.

40000 - 59999 (9)

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80000 - 99999 (23)

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700000 - 719999 (2)

820000 - 839999 (2)

840000 - 859999 (2)

1240000 - 1259999 (3)

1640000 - 1659999 (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.

40000 - 69999 (12)

70000 - 99999 (30)

100000 - 129999 (15)

130000 - 159999 (17)

160000 - 189999 (10)

190000 - 219999 (6)

250000 - 279999 (6)

280000 - 309999 (3)

340000 - 369999 (1)

370000 - 399999 (5)

790000 - 819999 (2)

940000 - 969999 (4)

1420000 - 1449999 (3)

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 - 179999 (78)

180000 - 309999 (19)

310000 - 439999 (8)

830000 - 959999 (2)

960000 - 1089999 (4)

1480000 - 1609999 (3)

AFUE (%)

AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More

91 (2)

91.2 (2)

91.4 (2)

91.6 (2)

91.9 (2)

92.2 (1)

92.3 (1)

92.4 (3)

92.5 (1)

92.7 (2)

93 (6)

93.3 (3)

93.5 (7)

93.8 (2)

94 (12)

94.1 (1)

95 (40)

95.1 (2)

95.2 (2)

95.4 (3)

95.5 (1)

96.1 (2)

96.5 (1)

Efficiency (%)

91 (1)

92 (1)

93 (2)

94 (1)

95 (6)

96 (5)

Fuel Type

To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Liquid Propane (9)

Natural Gas (107)

Modulating/Staging

Stages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More

Modulating (108)

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Ultra (7)

WM97+ (3)

16% Buy This

Greater Than 90% Efficiency Gas Boilers

Model: EVG 220

Model: E75CN

Model: 382200613

Model: 382200611

Model: 383500724

Model: 383800004

Model: 382200612

Model: 383800000

Model: 383500726

Model: 382200610

Model: ZWB42-3

Model: 383500723

Model: ZWB35-3

Model: CC 125

Model: ZBR16-3

Model: EVG 299

Model: ALP210BW-4T02

Model: K2-080

Model: ZBR42-3

Model: ALP150BW-4T02

Model: 383800005

Model: PT110

Model: PF-110-LP

Model: PF-110-N

Greater Than 90% Efficiency Gas Boiler