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Williams (83)
Caleffi (22)
Goodman (7)
Pensotti (73)
Ecostyle (38)
Rinnai (1)
Weil-McLain (29)
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Runtal (185)
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Hydrolevel (26)
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Burnham (48)
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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)
Blower (5)
Cable (2)
Ceiling Unit Heater (1)
Circulator (16)
Clamp (1)
Connection Adapter (1)
Control (3)
Couple (1)
Coupling (1)
Deflector (5)
Electric Furnace (5)
Electric Wall Furnace (6)
Gas Conversion Kit (3)
Gas Floor Furnace (3)
Gas Furnace (21)
Gas Wall Furnace (59)
Heavy Duty (1)
Ignitor (4)
Isolating Valve (2)
Kit (1)
Mat (4)
Mount (1)
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Oil Furnace (6)
Panel (285)
Parts (2)
Pipe Trace Controls & Accessories (1)
Poly Adapter (1)
Screen (2)
Smoke Alarm (3)
Smoke and CO Alarm (1)
Standard (2)
Stub-Out (1)
Temperature Gauge (1)
Thermostat (1)
Towel Warmer (583)
Vent Cap (3)
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 (19)
90000 - 109999 (18)
110000 - 129999 (14)
130000 - 149999 (5)
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 (15)
90000 - 109999 (11)
110000 - 129999 (15)
130000 - 149999 (17)
150000 - 169999 (2)
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 (15)
70000 - 99999 (11)
100000 - 129999 (31)
130000 - 159999 (24)
160000 - 189999 (11)
190000 - 219999 (13)
220000 - 249999 (5)
250000 - 279999 (5)
280000 - 309999 (9)
310000 - 339999 (2)
340000 - 369999 (2)
370000 - 399999 (2)
400000 - 429999 (3)
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 (38)
85 - 87 (12)
91 - 93 (5)
94 - 96 (51)
97 - 99 (3)
Efficiency (%)
+
77 - 78 (1)
93 - 94 (1)
Product Status
Available (826)
Discontinued (1767)
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Runtal Versus - 2,048 BTU - Electric Towel Warmer - 55.8" H - 22.8" W - 3.2" D - Direct Wire - Integrated Control
Model: VTRERD-5223-9010R
(1)
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2% Check Discount
$2,608.00
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Runtal Versus - 3,072 BTU - Electric Towel Warmer - 72.8" H - 22.8" W - 3.2" D - Direct Wire - Integrated Control
Model: VTRERD-6923-9010R
(1)
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2% Check Discount
$2,843.00
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Factory-Direct!
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Runtal Versus - 2,048 BTU - Electric Towel Warmer - 55.8" H - 22.8" W - 3.2" D - Plug-In - Integrated Control
Model: VTRERG-5223-9010R
(1)
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2% Check Discount
$2,689.00
Free Freight
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Factory-Direct!
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Runtal Versus - 3,072 BTU - Electric Towel Warmer - 72.8" H - 22.8" W - 3.2" D - Plug-In - Integrated Control
Model: VTRERG-6923-9010R
(1)
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2% Check Discount
$2,923.00
Free Freight
Free Lift Gate
Factory-Direct!
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Burnham Replacement Fan Blower
Model: 100850-01
(2)
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$450.00
Free Shipping
In-Stock
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Electro Industries 150 CFM 1000 Watts Electric Plenum Heater 120 Volts
Model: EM-WX01-120-1-06
(1)
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$719.10
Free Shipping
Factory-Direct!
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Grundfos UP - 1/25 HP - Single-Speed Circulation Pump - Bronze - 1/2" Sweat - Digital Timer
Model: 99452454
(1)
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$361.00
Free Shipping
In-Stock
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Weil-McLain - Easy-Up Manifold - For Ultra Boilers 155-399
Model: 383500766
(1)
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$774.00
Free Shipping
Only 2 In-Stock
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Grundfos UP - 1/25 HP - Single-Speed Circulation Pump - Bronze - 1/2" Sweat - With Digital Timer and Line Cord
Model: 99452460
(1)
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$430.00
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In-Stock
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Electro Industries EB-CX-42-48 - 42 kW - 143K BTU - Hot Water Electric Boiler - 480V - 3 Phase
Model: EB-CX-42-48
(1)
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2% Check Discount
$6,659.10
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Electro Industries EB-CX-48-48 - 48 kW - 164K BTU - Hot Water Electric Boiler - 480V - 3 Phase
Model: EB-CX-48-48
(1)
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2% Check Discount
$7,064.10
Free Freight
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Grundfos ALPHA2 - 1/6 HP - Variable Speed - Circulation Pump - Cast Iron - GF 15/26 Flange
Model: 99490916
(1)
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$661.00
Free Shipping
In-Stock
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Grundfos UP - 1/25 HP - Single Speed Circulation Pump - Bronze - 3/4" Sweat - With Digital Timer and Line Cord
Model: 99452461
(1)
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$456.00
Free Shipping
In-Stock
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Grundfos UP - 1/25 HP - Single Speed Circulation Pump - Bronze - Union - With Line Cord
Model: 99452457
(1)
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$414.00
Free Shipping
In-Stock
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ProSelect® Force™ Boilers - 107k BTU - 82.1% AFUE - Steam Gas Boiler - Chimney Vent
Model: FORCESTEAM06NH
(1)
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2% Check Discount
$4,249.00
Free Freight
Free Lift Gate
In-Stock
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Weil-McLain - Easy-Up Manifold Kit For Eco-Tec Boilers 80-199
Model: 383-700-343
(1)
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$314.00
Free Shipping
In-Stock
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Electro Industries EMB-M2-05 - 5 kW - 17K BTU - Hot Water Electric Boiler - 240V - 1 Phase
Model: EMB-M2-05-240-1
(1)
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2% Check Discount
$1,934.10
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Factory-Direct!
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Electro Industries EMB Mini-Boiler™ - 9 kW - 30.7K BTU - Hot Water Electric Boiler - 240V - 1 Phase - Staging
Model: EMB-R1-09-240-1
(1)
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2% Check Discount
$1,754.10
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Watts Radiant M-Series - 1-1/2" - Accessories Kit - 1-1/2" FNPT
Model: DK4000
(1)
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2% Check Discount
$1,021.00
Free Shipping
Backordered
Estimated Ship Date January 29on new orders
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Runtal Radia - 3,358 BTU - Hydronic Towel Warmer - 45.4" H - 23.6" W - 3.6" D
Model: RTR-4624-9010R
(1)
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$666.00
Free Shipping
Backordered
Estimated Ship Date February 12on new orders
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Caleffi Series 681 Universal PEX Fitting, 1/2" Nominal PEX Connection, 150 psi max - QTY:1
Model: 681524
(1)
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$15.00
Free Shipping
Backordered
Estimated Ship Date January 27on new orders
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Caleffi Series NA103 - Connection Fitting - 1/2" NPT Male Connection - 3/4" BSP
Model: NA10313
(1)
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$18.00
Free Shipping
Backordered
Estimated Ship Date January 14on new orders
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Runtal Radia - 3,072 BTU - Electric Towel Warmer - 49.7" H - 29.5" W - 3.6" D - Direct Wire - Integrated Control
Model: RTRED-4630-9010R
(1)
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2% Check Discount
$1,902.00
Free Freight
Free Lift Gate
Backordered
Estimated Ship Date February 02on new orders
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Williams Direct-Vent - 30,000 BTU - Gas Direct-Vent Wall Furnace - LP - 66% AFUE - Up To 2,000 Ft Altitude
Model: 3003821
(28)
Q&As
(2)
2% Check Discount
$1,429.00
Free Freight
Free Lift Gate
Only 1 In-Stock
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