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AO Smith (24)
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200,000+ (66)

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Efficiency

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80 - 85% (320)
85 - 90% (109)
90 - 95% (133)
95% + (143)

Vent Type

Atmospheric (195)
Direct Vent (116)
Power Vent (80)
Concentric (3)
Condensing (4)
Direct Exhaust (20)
Type B Vent (Chimney) (119)

Features

Combo DHW (49)
Condensing (96)
EI/Spark Ignition (164)
High Altitude (17)
Tankless Coil (5)
Wall Mounted (46)
Electronic Ignition (4)
Touchscreen (8)
Zonestacking (5)
Chimney Vent (14)

Review Score

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(9)
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(2)

Price Range

$10 to $15 (1)
$60 to $70 (1)
$100 to $200 (1)
$500 to $600 (1)
$1000 to $1500 (2)
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$2000 to $2500 (34)
$2500 to $3000 (115)
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$3500 to $4000 (108)

Hot Water Boilers

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Product Image of 206PI-G2 Parts - Series 2, 6 Sections, IHC LP, Grundfos Pump, 0-2000' (1" Burners)not-to-sell-product
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Product Image of MIH-03NG Parts - Boilernot-to-sell-product
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Product Image of MIGHTYTHERM-715L Parts - Boilernot-to-sell-product
MIGHTYTHERM-715L Parts - Boiler
SKU: MIGHTYTHERM-715L
Laars
SKU: MIGHTYTHERM-715L
Brand: Laars
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Product Image of ES2-6, 128,000 BTU Output High Efficiency Cast Iron Boiler (LP)
$4,113.00 each
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Product Image of 133-144-304 Parts - LGB 14 Steam F/O BOM Boilernot-to-sell-product
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Product Image of 7738005877 Parts - G615/15 Cast Iron Boiler, Oil RL100/M 230V/1not-to-sell-product
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Product Image of EXB6145-RIELLO-40BF Parts - Boilernot-to-sell-product
EXB6145-RIELLO-40BF Parts - Boiler
SKU: EXB6145-RIELLO-40BF
Utica-Dunkirk
SKU: EXB6145-RIELLO-40BF
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Product Image of CA30094 Parts - VITOCROSSAL 300 CA3 3.5 Double Fuel Gas Condensing Boilernot-to-sell-product
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Product Image of CGS40C-P Parts - Boilernot-to-sell-product
CGS40C-P Parts - Boiler
SKU: CGS40C-P
New Yorker
SKU: CGS40C-P
Brand: New Yorker
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Product Image of IN3PVNI-M2 Parts - IN3 Independence Boiler - Power Vent, NG, EI, M&M PSE802 LWCOnot-to-sell-product
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Product Image of 118-454-301 Parts - EG45 PIDN Steam WTO (S5) Boilernot-to-sell-product
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Product Image of 7738005890 Parts - G615/16 Cast Iron Boiler, Oil RL130/M 230V/3not-to-sell-product
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Product Image of OFN1501 Parts - Crest Outdoor Condensing Commerical Boiler (NG)not-to-sell-product
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Product Image of KHN055 Parts - Knight High Efficiency Boiler (NG)not-to-sell-product
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Product Image of PV8H3WET, 104,000 BTU Output V8H Water Boiler w/ Tankless Coil, no Burner (Oil)
$3,300.58 each
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Product Image of CGI-8 - 164,000 BTU Output Boiler, Spark Ignition, No Circulator - Series 5 (LP Gas)
$5,507.15 each
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Product Image of 209NI-G5 Parts - Series 2, 9 Sections, IHC NG, Grundfos Pump, 2001-5000' (40mm Burners)not-to-sell-product
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Product Image of CGI-4 - 67,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator, Works at 7,000-9,000 ft Altitude - Series 5 (Nat Gas)
$3,853.05 each
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Product Image of ALP600CPF-5L00 Parts - ALP600 Condensing Boiler (Propane)not-to-sell-product
ALP600CPF-5L00 Parts - ALP600 Condensing Boiler (Propane)
SKU: ALP600CPF-5L00
Burnham
SKU: ALP600CPF-5L00
Brand: Burnham
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Product Image of 204NI-TD Parts - Series 2, 4 Sections, IHC NG, Taco Pump, Denver (40mm Burners)not-to-sell-product
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Product Image of EXB6130-RIELLO-40BF Parts - Boilernot-to-sell-product
EXB6130-RIELLO-40BF Parts - Boiler
SKU: EXB6130-RIELLO-40BF
Utica-Dunkirk
SKU: EXB6130-RIELLO-40BF
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Product Image of CGI-3 - 43,000 BTU Output Boiler, Spark Ignition, No Circulator - Series 5 (LP Gas)
$3,325.93 each
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Product Image of 386-700-824 Parts - SGO-4 Float LWCO (S3) Boilernot-to-sell-product
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Product Image of EXB5100-CARLIN-EZ-LF Parts - Boilernot-to-sell-product
EXB5100-CARLIN-EZ-LF Parts - Boiler
SKU: EXB5100-CARLIN-EZ-LF
Utica-Dunkirk
SKU: EXB5100-CARLIN-EZ-LF
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Product Image of CHN1262 Parts - Copper-Fin II Boiler (NG)not-to-sell-product
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Product Image of CL3-105-ST Parts - Boilernot-to-sell-product
CL3-105-ST Parts - Boiler
SKU: CL3-105-ST
New Yorker
SKU: CL3-105-ST
Brand: New Yorker
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Product Image of FR-98 Parts - Boilernot-to-sell-product
FR-98 Parts - Boiler
SKU: FR-98
New Yorker
SKU: FR-98
Brand: New Yorker
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Product Image of SC-06-W Parts - Boilernot-to-sell-product
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Product Image of 95,000 BTU Output Cast Iron Oil Boiler w/ Burner - Chimney Vent
$4,194.30 each
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Product Image of RMT-320 Parts - RMT 320 Rondomat Boilernot-to-sell-product
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Product Image of CC-04-W Parts - Boiler (Water)not-to-sell-product
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Product Image of NTH-399 Parts - Boilernot-to-sell-product
NTH-399 Parts - Boiler
SKU: NTH-399
Laars
SKU: NTH-399
Brand: Laars
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Product Image of WPSB-3DP Parts - Boilernot-to-sell-product
WPSB-3DP Parts - Boiler
SKU: WPSB-3DP
Utica-Dunkirk
SKU: WPSB-3DP
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Product Image of RCB301AN 301,000 BTU Commercial Wall Mounted Boiler (NG/LP)
$10,274.06 each
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Product Image of MI85-06NG Parts - Boilernot-to-sell-product
MI85-06NG Parts - Boiler
SKU: MI85-06NG
Peerless Boilers
SKU: MI85-06NG
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Product Image of MiniTherm-JVH-125N Parts - Boilernot-to-sell-product
MiniTherm-JVH-125N Parts - Boiler
SKU: MINITHERM-JVH-125N
Laars
SKU: MINITHERM-JVH-125N
Brand: Laars
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Product Image of FBD0751 Parts - Crest Dual Fuel Condensing Boiler (NG/LP)not-to-sell-product
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Product Image of PVCG-C 130,000 BTU Output Gas Fired Water Boiler (Nat Gas)
$3,398.17 each
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Product Image of PBN1302-M9 Parts - Power-Fin Commercial Boiler (NG)not-to-sell-product
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Product Image of ES2-4, 77,000 BTU Output High Efficiency Cast Iron Boiler (LP)
$3,218.00 each
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Product Image of MAGNATHERM-1600 Parts - MagnaTherm 1600 Boilernot-to-sell-product
MAGNATHERM-1600 Parts - MagnaTherm 1600 Boiler
SKU: MAGNATHERM-1600
Laars
SKU: MAGNATHERM-1600
Brand: Laars
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Product Image of 117-122-330 Parts - EGH125 PIN Water WTO (S4) Boilernot-to-sell-product
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Product Image of 158-041-303 Parts - H 480 Water F/O BOM Boilernot-to-sell-product
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Product Image of LC-05-S Parts - Boiler (Steam)not-to-sell-product
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Product Image of CGI-25 - 36,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator, Works at 2,000-7,000 ft Altitude - Series 5 (LP Gas)
$3,302.79 each
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Product Image of X-PV7N 156,000 BTU Power Vent Boiler, 2,000 to 10,000 ft High Altitude (NG)
$4,881.74 each
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Resources
FAQs, Manuals & Videos
Videos
FAQs
What is the difference between high efficiency boilers and standard boilers?
High efficiency boilers generally have efficiency ratings over 90%, making them Energy Star approved. These boilers are often modulating and condensing boilers. The modulation feature allows them to operate at different BTU levels depending upon the amount of heat that is required at a given time (as opposed to a traditional boiler that fires at 100% even if only a small amount of heat is required). The condensing property refers to the ability to convert the condensed liquid that is produced by the boiler into energy. By doing so the boiler wastes less energy and is therefore more energy efficient.
How can I tell how many BTUs the boiler I buy needs to have?
For replacement boilers, if your previous boiler was sufficient and worked well you can simply replace the existing boiler with a new one that has the same BTU capacity. For boilers that are being installed in new residences you will need to find the BTU requirements by doing a heat loss of your given space. The heat loss will depend on insulation of walls and ceiling, window type and frequency, outdoor temperature, and several other factors. You can click the Rule of Thumb Guide to get a general idea of what you will need, but you should get a detailed heat loss report to know for sure.
Which are your best selling brands of boilers?
The top selling brands of boilers are Weil-Mclain and Burnham. However, we have recently begun to sell a large number of the Triangle Tube Solo Boilers.
What is the shipping process if I order a boiler from you?
Boilers ship via freight shipping companies, such as Yellow and UPS Freight. When the order ships, we will provide you with the carrier name and tracking number. The boiler will be shipped to your curb. If you need a lift gate on the truck please call to let us know. In general, the freight company will call you to set up a delivery time. If you need a specific delivery time, you may want to call the delivery company once the order ships.
Do you honor the warranties on these boilers?
SupplyHouse.com honors all manufacturer warranties. If there is any manufacturer defect with the boiler we will replace it upon return, or issue you a credit for the boiler.
Other Resources
Articles
More About Boilers
The Industry's Best Residential Boilers
As a heating professional, you know the boiler is the most important piece of equipment in any residential heating system. In addition to keeping your client’s home at the ideal temperature, the right boiler will provide it with reliable heating, consistently and affordably for years into the future. SupplyHouse.com has all the best electric, oil and gas boilers for sale to suit unique space requirements, budgets and needs of any residential customer. And with free shipping on orders over $99 plus personalized customer service, we’d make great partners!

SupplyHouse.com is your resource for electric, propane, oil and natural gas boilers. Equip your clients with the very best and most efficient options by Burnham, Weil-McLain, Slant/Fin, Lochinvar, New Yorker, AO Smith and more. We have one of the industry’s best selections of high-efficiency gas boilers, which are quickly becoming the standard in both boiler replacements and new construction. These cutting-edge models use a gas-fired condensing system to heat your client’s home more efficiently, effectively lowering their utility bills and the home’s carbon footprint. These boilers can bring an Annual Fuel Utilization Efficiency (AFUE) rating of as high as 98 percent!

Boilers for Every Unique Job
In addition to efficient gas boilers, we also offer a wide variety of standard gas boilers which will still bring excellent savings and efficiency improvements when replacing old, low-efficiency boilers. Even standard mid-efficiency options can offer an AFUE rating of up to 83 percent, which makes them an economical choice for replacement applications. We also have an impressive selection of oil boilers and electric and wood boilers for your specialty jobs. Oil boilers are commonly used in properties with fuel oil tanks, whereas wood can be used in off-grid areas or when oil and gas options are prohibitively expensive.

Remember, if you aren’t sure which option is best for your client or job, you can always get in touch with us for expert advice.