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Williams (83)
Caleffi (22)
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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)
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Deflector (6)
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Electric Wall Furnace (6)
Gas Conversion Kit (2)
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Gas Furnace (21)
Gas Wall Furnace (59)
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Temperature Gauge (1)
Thermostat (1)
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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Runtal EB3 - 3,000 BTU - Electric Baseboard Radiator - 10.125" H - 72" W - 2.25" D - Direct Wire
Model: EB3-72-208D-9010R
(6)
Q&A
(1)
$973.00
Free Shipping
Factory-Direct!
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Runtal EB3 - 3,000 BTU - Electric Baseboard Radiator - 10.125" H - 72" W - 2.25" D - Direct Wire
Model: EB3-72-240D-9010R
(6)
Q&A
(1)
$973.00
Free Shipping
Factory-Direct!
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Runtal EB3 - 3,500 BTU - Electric Baseboard Radiator - 10.125" H - 84" W - 2.25" D - Direct Wire
Model: EB3-84-120D-9010R
(6)
Q&A
(1)
2% Check Discount
$1,022.00
Free Shipping
Free Lift Gate
Factory-Direct!
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Runtal EB3 - 3,500 BTU - Electric Baseboard Radiator - 10.125" H - 84" W - 2.25" D - Direct Wire
Model: EB3-84-208D-9010R
(6)
Q&A
(1)
2% Check Discount
$1,022.00
Free Shipping
Free Lift Gate
Factory-Direct!
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Runtal EB3 - 3,500 BTU - Electric Baseboard Radiator - 10.125" H - 84" W - 2.25" D - Direct Wire
Model: EB3-84-240D-9010R
(6)
Q&A
(1)
2% Check Discount
$1,022.00
Free Shipping
Free Lift Gate
Factory-Direct!
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Runtal EB3 - 1,500 BTU - Electric Baseboard Radiator - 10.125" H - 36" W - 2.25" D - Direct Wire
Model: EB3-36-208D-9010R
(6)
Q&A
(1)
$821.00
Free Shipping
Backordered
Estimated Ship Date January 05on new orders
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Runtal EB3 - 3,000 BTU - Electric Baseboard Radiator - 10.125" H - 72" W - 2.25" D - Direct Wire
Model: EB3-72-120D-9010R
(6)
Q&A
(1)
$973.00
Free Shipping
Backordered
Estimated Ship Date January 05on new orders
View Details
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Buderus G115WS/3 - 85K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/3
(5)
Ask a Question
2% Check Discount
$2,326.00
Free Freight
Free Lift Gate
Factory-Direct!
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Buderus G115WS/4 - 109K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/4
(5)
Q&A
(1)
2% Check Discount
$2,663.00
Free Freight
Free Lift Gate
Factory-Direct!
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Buderus G115WS/5 - 136K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/5
(5)
Ask a Question
2% Check Discount
$2,912.00
Free Freight
Free Lift Gate
Factory-Direct!
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Modine HC - 18,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC18S01
(5)
Ask a Question
$660.00
Free Shipping
Only 4 In-Stock
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Modine HC - 24,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC24S01
(5)
Ask a Question
$745.00
Free Freight
Free Lift Gate
Only 1 In-Stock
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Modine HC - 47,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC47S01
(5)
Ask a Question
$962.00
Free Shipping
In-Stock
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Modine HC - 63,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC63S01
(5)
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2% Check Discount
$1,093.00
Free Shipping
Only 3 In-Stock
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Bosch Greenstar Combi 131 - 117K BTU - 95.0% AFUE - Combi Gas Boiler - Direct Vent
Model: ZWB35-3
(4)
Q&A
(1)
2% Check Discount
$4,633.00
Free Freight
Free Lift Gate
Factory-Direct!
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Caleffi Series 940 - Radiator Adapter - 1/2" x 3/4" Connections - QTY: 2
Model: 940451
(4)
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$29.00
Free Shipping
In-Stock
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Caleffi Thermostatic Control Head with Built-in Sensor, 45-82 F Temperature Range, used with radiator valves
Model: 200000
(4)
Q&As
(2)
$91.00
Free Shipping
In-Stock
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Runtal Neptune - 2,766 BTU - Hydronic Towel Warmer - 45.7" H - 19.5" W - 4.2" D - Polished Chrome
Model: NTR-4620C
(3)
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2% Check Discount
$5,487.00
Free Shipping
Factory-Direct!
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Amtrol Extrol - 7.6 Gallon - In-Line Boiler System Expansion Tank
Model: EX-60
(4)
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$125.89
Free Shipping
In-Stock
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Modine Hot Dawg HDS - 30,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Separated Combustion - Stainless Steel Heat Exchanger
Model: HDS30SS0111
(4)
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2% Check Discount
$1,430.00
Free Freight
Free Lift Gate
Only 2 In-Stock
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Modine Hot Dawg HDS - 75,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Separated Combustion - Stainless Steel Heat Exchanger
Model: HDS75SS0111
(4)
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2% Check Discount
$1,635.00
Free Freight
Free Lift Gate
Only 1 In-Stock
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Weil-McLain Sentinel-X100 - Corrosion Inhibitor Concentrate - 275ml
Model: 592900002
(4)
Ask a Question
$48.00
Free Shipping
In-Stock
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Weil-McLain Evergreen 220 - 206K BTU - 95.0% AFUE - Hot Water Gas Boiler - Direct Vent
Model: EVG 220
(3)
Ask a Question
2% Check Discount
$7,262.00
Free Freight
Free Lift Gate
In-Stock
View Details
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Electro Industries 123K BTU Electric Hot Water Boiler 36 kW 480V 3 Ph
Model: EB-CX-36-48
(4)
Ask a Question
2% Check Discount
$5,980.50
Free Freight
Free Lift Gate
Factory-Direct!
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