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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)
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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)
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210000 - 229999 (3)
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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)
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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)
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70 - 72 (25)
73 - 75 (8)
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82 - 84 (93)
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94 - 96 (56)
97 - 99 (9)
Efficiency (%)
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93 - 94 (1)
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Curved (14)
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Available (1525)
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Weil-McLain Steam - Tankless Water Heater Kit
Model: 386700350
(3)
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$497.00
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Weil-McLain WTGO - Tankless Water Heater Coil for WTGO-3, WTGO-4, WTGO-5 and WTGO-6
Model: 590921612
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$366.00
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Electro Industries 108K BTU Electric Hot Water Boiler 31.5 kW 240V 1Ph
Model: EB-CX-31
(3)
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2% Check Discount
$4,725.00
Free Freight
Free Lift Gate
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Electro Industries 123K BTU Electric Hot Water Boiler 36 kW 240V 1 Ph
Model: EB-CX-36
(3)
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2% Check Discount
$5,080.00
Free Freight
Free Lift Gate
Only 2 In-Stock
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Electro Industries 138K BTU Electric Hot Water Boiler 40.5 kW 208V 3Ph
Model: EB-CX-40
(3)
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2% Check Discount
$5,436.00
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Electro Industries 150K BTU Electric Hot Water Boiler 44 kW 240V 1 Ph
Model: EB-CX-44
(3)
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2% Check Discount
$5,791.00
Free Freight
Free Lift Gate
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Electro Industries 77K BTU Electric Hot Water Boiler 22.5 kW 240V 1 Ph
Model: EB-WX-23
(3)
Q&A
(1)
2% Check Discount
$3,757.00
Free Freight
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Electro Industries 34K BTU Electric Hot Water Boiler 10 kW 240V 1 Ph
Model: EB-MX-10
(3)
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2% Check Discount
$2,470.00
Free Shipping
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Electro Industries 51K BTU Electric Hot Water Boiler 15 kW 240V 1 Ph
Model: EB-MX-15
(3)
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2% Check Discount
$2,754.00
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Electro Industries 68K BTU Electric Hot Water Boiler 20 kW 240V 1 Ph
Model: EB-MX-20
(3)
Q&A
(1)
2% Check Discount
$2,997.00
Free Shipping
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Electro Industries 46K BTU Electric Hot Water Boiler 13.5 kW 240V 1 Ph
Model: EB-WX-13
(3)
Q&A
(1)
2% Check Discount
$3,343.00
Free Freight
Free Lift Gate
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Electro Industries 46K BTU Electric Hot Water Boiler 13.5 kW 208V 3 Ph
Model: EB-WX-13-2
(3)
Q&A
(1)
2% Check Discount
$3,460.00
Free Freight
Free Lift Gate
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Runtal Solea - 2,014 BTU - Hydronic Towel Warmer - 33.8" H - 19.7" W - 5.5" D
Model: STR-3420-9010R
(3)
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2% Check Discount
$1,343.00
Free Shipping
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Electro Industries EB-MS-12 - 11.5kW - 39K BTU - Hot Water Electric Boiler - 208/240V - 1 Phase
Model: EB-MS-12
(3)
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2% Check Discount
$2,308.00
Free Shipping
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Crown Boiler Aruba 5 - 32K BTU - 84% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: AWR038BNST3PSU
(3)
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2% Check Discount
$2,200.00
Free Freight
Free Lift Gate
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Crown Boiler Aruba 5 - 117K BTU - 84% AFUE - Hot Water Gas Boiler - Chimney Vent
Model: AWR140BNST3PSU
(3)
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2% Check Discount
$2,724.00
Free Freight
Free Lift Gate
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Runtal Electric Programmable Controller
Model: EPC
(2)
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$266.00
Free Shipping
Backordered
Estimated Ship Date January 03on new orders
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SunTouch TapeMat - 15 Sq Ft - Radiant Floor Heating Mat - 120V - 3' W x 5' L - 1.5 Amp Draw
Model: 12000536ST
(3)
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(2)
$274.58
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SunTouch TapeMat - 25 Sq Ft - Radiant Floor Heating Mat - 120V - 3' W x 8' 4" L - 2.5 Amp Draw
Model: 12000836ST
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(2)
$444.68
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SunTouch TapeMat - 30 Sq Ft - Radiant Floor Heating Mat - 120V - 3' W x 10' L - 3.0 Amp Draw
Model: 12001036ST
(3)
Q&As
(2)
$530.25
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SunTouch TapeMat - 45 Sq Ft - Radiant Floor Heating Mat - 120V - 3' W x 15' L - 4.5 Amp Draw
Model: 12001536ST
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$768.08
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SunTouch TapeMat - 60 Sq Ft - Radiant Floor Heating Mat - 120V - 3' W x 20' L - 6.0 Amp Draw
Model: 12002036ST
(3)
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2% Check Discount
$1,008.53
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SunTouch TapeMat - 10 Sq Ft - Radiant Floor Heating Mat - 120V - 2' W x 5' L - 1.0 Amp Draw
Model: 12000524ST
(3)
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$186.90
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SunTouch TapeMat - 15 Sq Ft - Radiant Floor Heating Mat - 120V - 2' W x 7' 6" L - 1.5 Amp Draw
Model: 12000724ST
(3)
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