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Number of Zones Learn More
Number of Zones
A zone is a room or area within a building that has its own temperature control.
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Type
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DOE Heating Capacity (BTU) Learn More
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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Net I=B=R Capacity (BTU) Learn More
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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Heating BTU
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Cooling BTU
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Capacity (Tons) Learn More
Capacity (Tons)
Tonnage, or tons of cooling, is a short hand method for describing the capacity of cooling equipment. One ton is equal to approximately 12 kBTU/hr.
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Maximum Number of Zones
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Maximum Input Capacity (BTU) Learn More
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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AFUE (%) Learn More
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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Efficiency (%)
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Style
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Casing
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Refrigerant Type
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Learn More About Williams 5002522Aacw-sale-badge
Williams - 50k BTU - Fireplace-Look Room Heater - NG - 68% AFUE
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Item#: 71184
Model#: 5002522A
Brand: Williams
$1,555.00
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Williams - 50k BTU - Fireplace-Look Room Heater - NG - 68% AFUE
Learn More About Williams 3144030IGacw-sale-badge
Williams Solana™ - 31,400 BTU - Electric Wall Furnace - Single-Sided - 9.2 kW - Gray
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Item#: 155279
Model#: 3144030IG
Brand: Williams
$1,250.00
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Williams Solana™ - 31,400 BTU - Electric Wall Furnace - Single-Sided - 9.2 kW - Gray
Learn More About Williams 3509621Aacw-sale-badge
Williams Monterey - 35,000 BTU - Gas Fired Wall Furnace - LP - 66% AFUE - Single Sided
5.0 out of 5 stars 5.0 out of 5 stars
(1)
Item#: 100046
Model#: 3509621A
Brand: Williams
$941.00
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Williams Monterey - 35,000 BTU - Gas Fired Wall Furnace - LP - 66% AFUE - Single Sided
Learn More About Modine PDP250AE0130acw-sale-badge
Modine PDP - 250,000 BTU - Unit Heater - NG - 83% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller
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Modine - PDP250AE0130 - 250,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48539
Model#: PDP250AE0130
Brand: Modine
Sale: $2,231.00
On Sale Through 04/30
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Modine PDP - 250,000 BTU - Unit Heater - NG - 83% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller
Learn More About Williams 5009621Aacw-sale-badge
Williams Monterey - 50,000 BTU - Gas Fired Wall Furnace - LP - 70% AFUE - Double Sided
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Item#: 100048
Model#: 5009621A
Brand: Williams
$1,278.00
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Williams Monterey - 50,000 BTU - Gas Fired Wall Furnace - LP - 70% AFUE - Double Sided
Learn More About Goodman GM9C961205DNacw-sale-badge
Goodman GM9C96 - 120k BTU - Gas Furnace - 96% AFUE
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High Efficiency Upflow/Horizontal Blower with 2000 Max CFM. Natural Gas with Low NOx Emissions. 24.5 Cabinet Width.
Item#: 117618
Model#: GM9C961205DN
Brand: Goodman
Originally $2,308.00
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Goodman GM9C96 - 120k BTU - Gas Furnace - 96% AFUE
Learn More About Reznor UDXC-250acw-sale-badge
Reznor UDXC - 250,000 BTU - Power Vented Gas Fired Unit Heater - Low Static Axial Fan - NG - TCORE2® Heat Exchanger - LP Convertible
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Reznor - UDXC-250 - 250,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 3,202 CFM - 115V
Item#: 157241
Model#: UDXC-250
Brand: Reznor
Sale: $2,269.00
On Sale Through 04/30
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Reznor UDXC - 250,000 BTU - Power Vented Gas Fired Unit Heater - Low Static Axial Fan - NG - TCORE2® Heat Exchanger - LP Convertible
Learn More About Williams 6502921Aacw-sale-badge
Williams - 65K BTU - Fireplace-Look Room Heater - LP - 70% AFUE - With Blower
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Item#: 71193
Model#: 6502921A
Brand: Williams
$2,417.00
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Williams - 65K BTU - Fireplace-Look Room Heater - LP - 70% AFUE - With Blower
Learn More About Williams 3502522Aacw-sale-badge
Williams - 35K BTU - Fireplace-Look Room Heater - NG - 68% AFUE
5.0 out of 5 stars 5.0 out of 5 stars
(1)
Item#: 71176
Model#: 3502522A
Brand: Williams
$1,266.00
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Williams - 35K BTU - Fireplace-Look Room Heater - NG - 68% AFUE
Learn More About Modine HD75AS0111acw-sale-badge
Modine Hot Dawg HD - 75,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
4.0 out of 5 stars 4.0 out of 5 stars
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Modine - HD75AS0111 - 75,000 BTU - Hot Dawg HD Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase
Item#: 48437
Model#: HD75AS0111
Brand: Modine
Sale: $1,146.00
On Sale Through 04/30
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Modine Hot Dawg HD - 75,000 BTU - Unit Heater - NG - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger
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Ecostyle - 2,562 BTU - Hot Water Panel Radiator - 12"H x 24"W - White
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Ecostyle - B-12.24 ECO - 2,562 BTU with a boiler supply temperature of 180 degrees F - Hydronic Panel Radiator - 12"H x 24"W - White
Item#: 24143
Model#: ECS122422CV
Brand: Ecostyle
Sale: $202.00
On Sale Through 04/30
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Ecostyle - 2,562 BTU - Hot Water Panel Radiator - 12"H x 24"W - White
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Ecostyle - 3,414 BTU - Hot Water Panel Radiator - 12"H x 32"W - White
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Ecostyle - B-12.32 ECO - 3,414 BTU with a boiler supply temperature of 180 degrees F - Hydronic Panel Radiator - 12"H x 32"W - White
Item#: 24144
Model#: ECS123222CV
Brand: Ecostyle
Sale: $237.00
On Sale Through 04/30
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Ecostyle - 3,414 BTU - Hot Water Panel Radiator - 12"H x 32"W - White
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Ecostyle - 4,240 BTU - Hot Water Panel Radiator - 36"H x 16"W - White
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Ecostyle - B-36.16 ECO - 4,240 BTU with a boiler supply temperature of 180 degrees F - Hydronic Panel Radiator - 36"H x 16"W - White
Item#: 24166
Model#: ECS361622CV
Brand: Ecostyle
$465.00
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Factory-Direct
Ecostyle - 4,240 BTU - Hot Water Panel Radiator - 36"H x 16"W - White
Learn More About Modine PTP150SS0121acw-sale-badge
Modine PTP - 150,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
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Modine - PTP150SS0121 - 150,000 BTU - Gas Fired Unit Heater - Single-Stage Liquid Propane Burner* - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase*
Item#: 48576
Model#: PTP150SS0121
Brand: Modine
Sale: $1,603.00
On Sale Through 04/30
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Modine PTP - 150,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Learn More About Williams 5001522Aacw-sale-badge
Williams - 50k BTU - Room Heater - NG - 68% AFUE
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Item#: 71180
Model#: 5001522A
Brand: Williams
$1,549.00
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Williams - 50k BTU - Room Heater - NG - 68% AFUE
Learn More About Williams 2102acw-sale-badge
Williams Automatic Blower 150 CFM 120V
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Williams - 2102 - Automatic Blower - For Williams' Vented Room Console Heaters
Item#: 71270
Model#: 2102
Brand: Williams
$457.00
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Williams Automatic Blower 150 CFM 120V
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