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Williams (83)
Caleffi (22)
Goodman (9)
Pensotti (73)
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Weil-McLain (31)
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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 (6)
Electric Furnace (5)
Electric Wall Furnace (6)
Gas Conversion Kit (2)
Gas Floor Furnace (3)
Gas Furnace (21)
Gas Wall Furnace (59)
Heavy Duty (1)
Ignitor (4)
Isolating Valve (2)
Kit (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)
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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
To
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.
Learn More
+
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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