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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)
×
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)
Straight (36)
Product Status
Available (1525)
Discontinued (1475)
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Burnham IN5 - 86K BTU - 82.0% AFUE - Steam Gas Boiler - Chimney Vent - Trim Sold Separately
Model: KIN5LNI-LE2
(3)
Q&As
(2)
2% Check Discount
$3,808.28
Free Freight
Free Lift Gate
Factory-Direct!
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Burnham IN6 - 108K BTU - 82.1% AFUE - Steam Gas Boiler - Chimney Vent - Trim Sold Separately
Model: KIN6LNI-LE2
(3)
Q&As
(2)
2% Check Discount
$4,383.54
Free Freight
Free Lift Gate
Factory-Direct!
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Burnham IN7 - 130K BTU - 82.1% AFUE - Steam Gas Boiler - Chimney Vent - Trim Sold Separately
Model: KIN7LNI-LE2
(3)
Q&As
(2)
2% Check Discount
$4,452.00
Free Freight
Free Lift Gate
Factory-Direct!
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Burnham IN9 - 174K BTU - 82.2% AFUE - Steam Propane Boiler - Chimney Vent - Trim Sold Separately
Model: KIN9LPI-LE2
(3)
Q&As
(2)
2% Check Discount
$5,620.00
Free Freight
Free Lift Gate
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Weil-McLain Evergreen 110 - 101K BTU - 95% AFUE - Hot Water Gas Boiler - Direct Vent
Model: EVG 110
(4)
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2% Check Discount
$3,614.00
Free Freight
Free Lift Gate
In-Stock
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Electro Industries 34K BTU Electric Hot Water Boiler 10 kW 240V 1 Ph
Model: EB-MS-10
(3)
Q&As
(2)
2% Check Discount
$2,137.00
Free Shipping
Factory-Direct!
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Electro Industries 51K BTU Electric Hot Water Boiler 15 kW 240V 1 Ph
Model: EB-MS-15
(3)
Q&As
(2)
2% Check Discount
$2,421.00
Free Shipping
Factory-Direct!
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Crown Boiler Bermuda - 64K BTU - 82.0% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI103ELPZZPSU
(2)
Ask a Question
2% Check Discount
$3,091.00
Free Freight
Free Lift Gate
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Crown Boiler Bermuda - 85K BTU - 82.0% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI138ELPZZPSU
(2)
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2% Check Discount
$3,400.00
Free Freight
Free Lift Gate
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Crown Boiler Bermuda - 107K BTU - 82.1% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI172ELPZZPSU
(2)
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2% Check Discount
$3,657.00
Free Freight
Free Lift Gate
Factory-Direct!
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Crown Boiler Bermuda - 128K BTU - 82.1% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI207ELPZZPSU
(2)
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2% Check Discount
$4,121.00
Free Freight
Free Lift Gate
Factory-Direct!
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Crown Boiler Bermuda - 149K BTU - 82.2% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI241ELPZZPSU
(2)
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2% Check Discount
$4,430.00
Free Freight
Free Lift Gate
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Crown Boiler Bermuda - 172K BTU - 82.2% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI276ELPZZPSU
(2)
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2% Check Discount
$4,739.00
Free Freight
Free Lift Gate
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Crown Boiler Bermuda - 172K BTU - 82.2% AFUE - Steam Gas Boiler - Chimney Vent
Model: BSI276ENPZZPSU
(2)
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2% Check Discount
$4,739.00
Free Freight
Free Lift Gate
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Crown Boiler Bermuda - 43K BTU - 81.9% AFUE - Steam Propane Boiler - Chimney Vent
Model: BSI069ELPZZPSU
(2)
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2% Check Discount
$2,885.00
Free Freight
Free Lift Gate
Factory-Direct!
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Caleffi Two-pipe Straight Panel Radiators Valve - 1/2" BSP Straight (Radiator) x 3/4" BSP Conical (Pipe)
Model: 301040
(3)
Q&A
(1)
$33.54
Free Shipping
In-Stock
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Goodman Two Stage Furnace Natural Gas to LP Conversion Kit
Model: LPM-06
(3)
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$36.00
Free Shipping
In-Stock
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Goodman Natural Gas to LP Conversion Kit for Modulating Furnace
Model: LPM-09
(3)
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$130.00
$78.00
Free Shipping
Only 1 In-Stock
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Taco 00 Series - Replacement Cartridge Assembly
Model: 005-020RP
(3)
Q&A
(1)
$199.36
Free Shipping
In-Stock
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Taco 006 - 1/40 HP - Circulator Pump - Stainless Steel - 3/4" NPT
Model: 006-ST4
(3)
Q&A
(1)
$322.35
Free Shipping
In-Stock
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Runtal Fain - 984 BTU - Hydronic Towel Warmer - 33.1" H - 19.7" W - 3.5" D
Model: FTR-3320
(2)
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2% Check Discount
$1,965.00
Free Shipping
Factory-Direct!
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Runtal Fain - 1,024 BTU - Electric Towel Warmer - 37.4" H - 19.7" W - 3.5" D - Direct Wire - Integrated Control
Model: FTRD-3320
(2)
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2% Check Discount
$2,946.00
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Runtal Neptune - 1,536 BTU - Electric Towel Warmer - 50" H - 19.5" W - 4.2" D - Plug-In - Integrated Control - Polished Chrome
Model: NTREG-4620C
(2)
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2% Check Discount
$5,436.00
Free Shipping
Factory-Direct!
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Modine PTE - 50 kW - Electric Unit Heater - 480V/60Hz/3 Phase - Horizontal Orientation
Model: PTE500B3301
(2)
Q&A
(1)
2% Check Discount
$6,460.00
Free Freight
Free Lift Gate
Factory-Direct!
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