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Net I=B=R Capacity (BTU)
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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.
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Enter Net I=B=R Capacity (BTU) Range Minimum Value
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Enter Net I=B=R Capacity (BTU) Range Maximum Value
20000 - 39999 (4)
40000 - 59999 (12)
60000 - 79999 (30)
80000 - 99999 (24)
100000 - 119999 (25)
120000 - 139999 (21)
140000 - 159999 (15)
160000 - 179999 (16)
180000 - 199999 (4)
200000 - 219999 (6)
220000 - 239999 (5)
240000 - 259999 (3)
260000 - 279999 (1)
300000 - 319999 (1)
320000 - 339999 (3)
340000+ (1)
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DOE Heating Capacity (BTU)
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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.
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Enter DOE Heating Capacity (BTU) Range Minimum Value
To
Enter DOE Heating Capacity (BTU) Range Maximum Value
30000 - 49999 (2)
50000 - 69999 (14)
70000 - 89999 (30)
90000 - 109999 (12)
110000 - 129999 (24)
130000 - 149999 (26)
150000 - 169999 (5)
170000 - 189999 (17)
190000 - 209999 (16)
210000 - 229999 (3)
230000 - 249999 (7)
250000 - 269999 (5)
270000 - 289999 (3)
290000 - 309999 (2)
350000 - 369999 (1)
370000 - 389999 (3)
450000 - 469999 (1)
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Heating BTU
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1000 - 10999 (1133)
11000 - 20999 (30)
21000 - 30999 (10)
31000 - 40999 (30)
41000 - 50999 (13)
51000 - 60999 (20)
61000 - 70999 (10)
71000 - 80999 (15)
81000 - 90999 (2)
91000 - 100999 (10)
101000 - 110999 (1)
111000 - 120999 (2)
121000+ (3)
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Maximum Input Capacity (BTU)
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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.
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10000 - 39999 (28)
40000 - 69999 (51)
70000 - 99999 (46)
100000 - 129999 (81)
130000 - 159999 (54)
160000 - 189999 (39)
190000 - 219999 (41)
220000 - 249999 (21)
250000 - 279999 (25)
280000 - 309999 (29)
310000 - 339999 (7)
340000 - 369999 (15)
370000 - 399999 (5)
400000 - 429999 (12)
490000 - 519999 (3)
580000 - 609999 (1)
610000 - 639999 (1)
940000 - 969999 (1)
1000000+ (1)
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AFUE (%)
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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.
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58 - 60 (3)
64 - 66 (8)
67 - 69 (21)
70 - 72 (25)
73 - 75 (8)
76 - 78 (17)
79 - 81 (13)
82 - 84 (93)
85 - 87 (25)
91 - 93 (12)
94 - 96 (56)
97 - 99 (9)
Efficiency (%)
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77 - 78 (1)
93 - 94 (1)
Style
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Curved (14)
Panel (25)
Slab (1)
Slab Coil (2)
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Product Status
Available (1525)
Discontinued (1475)
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Crown Boiler FWZ080 - 97K BTU - 86.3% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: FWZ080BOLT1SSU
(1)
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2% Check Discount
$3,700.00
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Only 1 In-Stock
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Crown Boiler FWZ100 - 123K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: FWZ100BOLT1SSU
(1)
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2% Check Discount
$4,077.00
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Crown Boiler FWZ130 - 160K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: FWZ130BOLT1SSU
(1)
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2% Check Discount
$3,920.00
Free Freight
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Crown Boiler FWZ160 - 197K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: FWZ160BOLT1SSU
(1)
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2% Check Discount
$3,563.00
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Modine 5" Diameter - Vent Cap
Model: 27867
(2)
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$138.00
Free Shipping
Only 2 In-Stock
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Modine HDB - 100,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB100AS0121
(2)
Q&A
(1)
2% Check Discount
$2,590.00
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Modine HDB - 100,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Model: HDB100SS0121
(2)
Q&A
(1)
2% Check Discount
$3,011.00
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Modine HDB - 100,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB100AS0111
(2)
Q&A
(1)
2% Check Discount
$2,590.00
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Modine HDB - 100,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Model: HDB100SS0111
(2)
Q&A
(1)
2% Check Discount
$3,011.00
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Modine HDB - 125,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB125AS0121
(2)
Q&A
(1)
2% Check Discount
$2,848.00
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Modine HDB - 125,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB125AS0111
(2)
Q&A
(1)
2% Check Discount
$2,848.00
Free Freight
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Modine HDB - 60,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB60AS0121
(2)
Q&A
(1)
2% Check Discount
$2,377.00
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Modine HDB - 60,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB60AS0111
(2)
Q&A
(1)
2% Check Discount
$2,377.00
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Modine HDB - 75,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB75AS0121
(2)
Q&A
(1)
2% Check Discount
$2,477.00
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Modine HDB - 75,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Model: HDB75SS0121
(2)
Q&A
(1)
2% Check Discount
$2,928.00
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Modine HDB - 75,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
Model: HDB75AS0111
(2)
Q&A
(1)
2% Check Discount
$2,477.00
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Modine HDB - 75,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Model: HDB75SS0111
(2)
Q&A
(1)
2% Check Discount
$2,928.00
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Only 1 In-Stock
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Modine HDC - 100,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Separated Combustion - Aluminized Steel Heat Exchanger
Model: HDC100AS0121
(2)
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2% Check Discount
$3,268.00
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Modine HDC - 100,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Separated Combustion - Stainless Steel Heat Exchanger
Model: HDC100SS0121
(2)
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2% Check Discount
$3,472.00
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Modine HDC - 100,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Separated Combustion - Aluminized Steel Heat Exchanger
Model: HDC100AS0111
(2)
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2% Check Discount
$3,268.00
Free Freight
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Modine HDC - 100,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Separated Combustion - Stainless Steel Heat Exchanger
Model: HDC100SS0111
(2)
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2% Check Discount
$3,472.00
Free Freight
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Modine HDC - 125,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Separated Combustion - Aluminized Steel Heat Exchanger
Model: HDC125AS0121
(2)
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2% Check Discount
$3,472.00
Free Freight
Free Lift Gate
Factory-Direct!
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Modine HDC - 125,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Separated Combustion - Aluminized Steel Heat Exchanger
Model: HDC125AS0111
(2)
Ask a Question
2% Check Discount
$3,472.00
Free Freight
Free Lift Gate
Factory-Direct!
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Modine HDC - 125,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Separated Combustion - Stainless Steel Heat Exchanger
Model: HDC125SS0111
(2)
Ask a Question
2% Check Discount
$3,707.00
Free Freight
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