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Williams (83)
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Number of Zones
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Number of Zones
A zone is a room or area within a building that has its own temperature control.
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1 (1)
3 (1)
6 (1)
Type
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Adapter Kit (1)
Air Purger (1)
Air Vent (4)
Baseboard (414)
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Cable (2)
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Towel Warmer (583)
Vent Cap (4)
Vent Kit (1)
Venting Accessories (3)
Zone Control (2)
Zoning Circulator (2)
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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
30000 - 49999 (2)
50000 - 69999 (10)
70000 - 89999 (20)
90000 - 109999 (18)
110000 - 129999 (14)
130000 - 149999 (6)
150000 - 169999 (7)
170000 - 189999 (7)
190000 - 209999 (1)
210000 - 229999 (2)
230000 - 249999 (3)
250000 - 269999 (1)
310000 - 329999 (1)
330000 - 349999 (2)
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DOE Heating Capacity (BTU)
×
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 - 69999 (5)
70000 - 89999 (16)
90000 - 109999 (11)
110000 - 129999 (15)
130000 - 149999 (17)
150000 - 169999 (3)
170000 - 189999 (8)
190000 - 209999 (7)
210000 - 229999 (1)
230000 - 249999 (2)
250000 - 269999 (2)
270000 - 289999 (3)
290000 - 309999 (1)
370000 - 389999 (2)
450000 - 469999 (1)
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Heating BTU
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1000 - 10999 (1262)
11000 - 20999 (32)
21000 - 30999 (17)
31000 - 40999 (33)
41000 - 50999 (16)
51000 - 60999 (29)
61000 - 70999 (12)
71000 - 80999 (10)
81000 - 90999 (8)
91000 - 100999 (11)
101000 - 110999 (2)
111000 - 120999 (2)
121000+ (5)
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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.
+
10000 - 39999 (11)
40000 - 69999 (11)
70000 - 99999 (10)
100000 - 129999 (31)
130000 - 159999 (22)
160000 - 189999 (12)
190000 - 219999 (14)
220000 - 249999 (5)
250000 - 279999 (5)
280000 - 309999 (8)
310000 - 339999 (2)
340000 - 369999 (2)
370000 - 399999 (2)
400000 - 429999 (4)
580000 - 609999 (1)
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AFUE (%)
×
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 (10)
67 - 69 (26)
70 - 72 (29)
73 - 75 (10)
76 - 78 (22)
79 - 81 (6)
82 - 84 (40)
85 - 87 (12)
91 - 93 (6)
94 - 96 (50)
97 - 99 (3)
Efficiency (%)
+
77 - 78 (1)
93 - 94 (1)
Product Status
Available (825)
Discontinued (1767)
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Electro Industries 184K BTU Electric Hot Water Boiler 54 kW 480V 3 Ph
Model: EB-CX-54-48
(4)
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2% Check Discount
$7,469.10
Free Freight
Free Lift Gate
Factory-Direct!
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Electro Industries 138K BTU Electric Hot Water Boiler 40.5 kW 208V 3Ph
Model: EB-CX-40-20
(4)
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2% Check Discount
$7,514.10
Free Freight
Free Lift Gate
Factory-Direct!
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Electro Industries 138K BTU Electric Hot Water Boiler 40.5 kW 240V 3Ph
Model: EB-CX-40-24
(4)
Ask a Question
2% Check Discount
$7,604.10
Free Freight
Free Lift Gate
Factory-Direct!
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Weil-McLain Ultra 105 - 94K BTU - 94% AFUE - Hot Water Gas Boiler - Direct Vent
Model: 383500734
(4)
Ask a Question
2% Check Discount
$3,954.00
Free Freight
Free Lift Gate
In-Stock
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Weil-McLain Ultra 230 - 207K BTU - 94.1% AFUE - Hot Water Gas Boiler - Direct Vent
Model: 383500736
(4)
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2% Check Discount
$5,652.00
Free Freight
Free Lift Gate
In-Stock
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Caleffi Auto Fill Combo Automatic Boiler Fill Valve with Backflow Preventer, 1/2" FNPT Inlet x 1/2" FNPT Outlet
Model: 573002A
(4)
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$306.00
Free Shipping
In-Stock
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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
$4,039.00
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
$4,649.00
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
$5,051.00
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)
$75.00
Free Shipping
In-Stock
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Goodman Two Stage Furnace Natural Gas to LP Conversion Kit
Model: LPM-06
(3)
Ask a Question
$39.00
Free Shipping
In-Stock
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Taco 00 Series - Replacement Cartridge Assembly
Model: 005-020RP
(3)
Q&A
(1)
$220.22
Free Shipping
Factory-Direct!
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Taco 006 - 1/40 HP - Circulator Pump - Stainless Steel - 3/4" NPT
Model: 006-ST4
(3)
Q&A
(1)
$356.45
Free Shipping
In-Stock
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Runtal Electric Programmable Controller
Model: EPC
(2)
Ask a Question
$266.00
Free Shipping
Factory-Direct!
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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
$2,025.00
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
$3,035.00
Free Shipping
Factory-Direct!
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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
$5,599.00
Free Shipping
Factory-Direct!
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Weil-McLain Steam - Tankless Water Heater Kit
Model: 386700350
(3)
Ask a Question
$445.00
Free Shipping
Only 5 In-Stock
View Details
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Weil-McLain WTGO - Tankless Water Heater Coil for WTGO-3, WTGO-4, WTGO-5 and WTGO-6
Model: 590921612
(3)
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$328.00
Free Shipping
In-Stock
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Electro Industries 150K BTU Electric Hot Water Boiler 44 kW 240V 1 Ph
Model: EB-CX-44
(3)
Ask a Question
2% Check Discount
$6,029.10
Free Freight
Free Lift Gate
Factory-Direct!
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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
$3,779.10
Free Freight
Free Lift Gate
Factory-Direct!
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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
$1,384.00
Free Shipping
Factory-Direct!
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Burnham IN4 - 65K BTU - 82.0% AFUE - Steam Gas Boiler - Chimney Vent - Trim Sold Separately
Model: KIN4LNI-LE2
(3)
Q&As
(2)
2% Check Discount
$3,332.00
Free Freight
Free Lift Gate
Factory-Direct!
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Taco 007 - 1/25 HP - Circulator Pump - Cast Iron - Flange
Model: 007-F5
(4)
Ask a Question
$155.06
Free Shipping
In-Stock
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