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Oil boilers are perfect for homes that do not have access to natural gas and can lead to huge savings by using renewable fuels. eComfort offers a comprehensive assortment of conventional & high efficiency oil boilers, along with the parts necessary for fixing or upgrading your current model.
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Model Number 386700830 is the Number 1 Seller
Learn More About Weil-McLain 386700830
Weil-McLain P-WGO-5 - 175K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700830
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.45 GPH Gross Input, 175K BTU DOE Capacity, 152K BTU Net IBR Capacity. Includes Circulator.
21% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
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On Sale Ends 03/31
$2,695.00
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$2,837.10
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Model Number 386700827 is the Number 2 Seller
Learn More About Weil-McLain 386700827
Weil-McLain P-WGO-2 - 86K BTU - 86.4% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700827
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.70 GPH Gross Input, 86K BTU DOE Capacity, 75K BTU Net IBR Capacity. Includes Circulator.
17% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(4)
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On Sale Ends 03/31
$1,681.00
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$1,769.79
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Model Number 386700833 is the Number 3 Seller
Learn More About Weil-McLain 386700833
Weil-McLain P-WTGO-4 - 145K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700833
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.20 GPH Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity. Includes Circulator.
7% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
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On Sale Ends 03/31
$2,580.00
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$2,716.00
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Model Number G115WS/3 is the Number 4 Seller
Learn More About Buderus G115WS/3
Model G115WS/3 is a Recommended Product
Buderus G115WS/3 - 85K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/3
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.70 GPH Gross Input, 85K BTU DOE Capacity, 74K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(5)
Q&A (1)
$1,599.00
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Model Number G115WS/4 is the Number 5 Seller
Learn More About Buderus G115WS/4
Model G115WS/4 is a Recommended Product
Buderus G115WS/4 - 109K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/4
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.90 GPH Gross Input, 109K BTU DOE Capacity, 95K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(5)
Q&A (1)
$1,829.00
Only 1 In-Stock
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Learn More About New Yorker CL3-140-WT-TBB
New Yorker CL3-140 - 120K BTU - 84.3% AFUE - Hot Water Oil Boiler - Chimney Vent - Includes Tankless Coil
Model: CL3-140-WT-TBB
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.0 GPH Gross Input, 120K BTU DOE Capacity, 104K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(5)
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$2,553.29
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Learn More About Weil-McLain 386700832
Weil-McLain P-WTGO-3 - 115K BTU - 85.3% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700832
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.95 GPH Gross Input, 115K BTU DOE Capacity, 100K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Q&A (1)
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On Sale Ends 03/31
$2,248.00
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$2,366.60
SAVE $118.60
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Learn More About Weil-McLain 386700834
Weil-McLain P-WTGO-5 - 175K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700834
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.45 GPH Gross Input, 175K BTU DOE Capacity, 152K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Q&A (1)
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On Sale Ends 03/31
$2,925.00
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$3,078.49
SAVE $153.49
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Learn More About Buderus G215/4
Model G215/4 is a Recommended Product
Buderus G215/4 - 171K BTU - 86.2% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: G215/4
Floor Mounted, Cast Iron Boiler. Ships Disassembled. Ratings: 1.40 GPH Gross Input, 171K BTU DOE Capacity, 149K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
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$2,429.00
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Learn More About Buderus G115WS/5-AFG
Buderus G115WS/5 - 136K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Includes Beckett AFG Burner
Model: G115WS/5-AFG
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.10 GPH Gross Input, 136K BTU DOE Capacity, 119K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
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$2,788.00
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Learn More About Weil-McLain 386700821
Weil-McLain P-SGO-5 - 131K BTU - 83.9% AFUE - Steam Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700821
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.45 GPH Gross Input, 174K BTU DOE Capacity, 131K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
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On Sale Ends 03/31
$2,973.00
Was 
$3,129.03
SAVE $156.03
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About New Yorker CL5-245-SN-MBB
New Yorker CL5-245 - 155K BTU - 82.5% AFUE - Steam Oil Boiler - Chimney Vent
Model: CL5-245-SN-MBB
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.75 GPH Gross Input, 207K BTU DOE Capacity, 155K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
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$3,169.29
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Crown Boiler Co. FWZ080BOLT1SSU
Model FWZ080BOLT1SSU is a Recommended Product
Crown Boiler FWZ080 - 97K BTU - 86.3% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: FWZ080BOLT1SSU
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.80 GPH Gross Input, 97K BTU DOE Capacity, 84K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(2)
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$2,820.00
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About New Yorker CI-HGS-129B-LB
New Yorker CI-HGS-129B - 129K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: CI-HGS-129B-LB
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.05 GPH Gross Input, 129K BTU DOE Capacity, 112K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$2,469.00
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Buderus G215/5-CF375
Buderus G215/5 - 207K BTU - 86.1% AFUE - Hot Water Oil Boiler - Chimney Vent - Includes Beckett CF375 Burner
Model: G215/5-CF375
Floor Mounted, Cast Iron Boiler. Ships Disassembled. Ratings: 1.70 GPH Gross Input, 207K BTU DOE Capacity, 180K BTU Net IBR Capacity.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$3,699.00
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Burnham MPO-IQ115-TB
Burnham MPO-IQ115 - 101K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: MPO-IQ115-TB
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.82 GPH Gross Input, 101K BTU DOE Capacity, 88K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$2,449.00
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Burnham MPO-IQ147-TB
Burnham MPO-IQ147 - 129K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney Vent
Model: MPO-IQ147-TB
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.05 GPH Gross Input, 129K BTU DOE Capacity, 112K BTU Net IBR Capacity. Includes Circulator.
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$2,599.00
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Weil-McLain A-SGO-7
Weil-McLain A-SGO-7 - 180K BTU - 83.6% AFUE - Steam Oil Boiler - Chimney Vent - Burner and Trim Sold Separately
Model: A-SGO-7
Floor Mounted, Cast Iron Boiler. Ships Disassembled. Ratings: 2.0 GPH Gross Input, 240K BTU DOE Capacity, 180K BTU Net IBR Capacity.
3% Buy This
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On Sale Ends 03/31
$2,770.00
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$2,916.18
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Crown Boiler Co. KSZ125BOPZ2PSU
Crown Boiler Kingston - 149K BTU - 84.2% AFUE - Steam Oil Boiler - Chimney Vent
Model: KSZ125BOPZ2PSU
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.25 GPH Gross Input, 149K BTU DOE Capacity, 112K BTU Net IBR Capacity.
3% Buy This
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$3,539.00
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Buderus G115WS/5
Model G115WS/5 is a Recommended Product
Buderus G115WS/5 - 136K BTU - 87.0% AFUE - Hot Water Oil Boiler - Chimney or Direct Vent - Burner Sold Separately
Model: G115WS/5
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.10 GPH Gross Input, 136K BTU DOE Capacity, 119K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(5)
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$1,989.00
Only 4 In-Stock
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Weil-McLain 386700835
Weil-McLain P-WTGO-6 - 212K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700835
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.75 GPH Gross Input, 212K BTU DOE Capacity, 184K BTU Net IBR Capacity. Includes Circulator.
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
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On Sale Ends 03/31
$3,216.00
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$3,384.75
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Learn More About Weil-McLain 386700828
Weil-McLain P-WGO-3 - 115K BTU - 85.3% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700828
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.95 GPH Gross Input, 115K BTU DOE Capacity, 100K BTU Net IBR Capacity. Includes Circulator.
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(4)
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On Sale Ends 03/31
$2,034.00
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$2,141.50
SAVE $107.50
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Weil-McLain 386700829
Weil-McLain P-WGO-4 - 145K BTU - 85.0% AFUE - Hot Water Oil Boiler - Chimney Vent - Burner Sold Separately
Model: 386700829
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 1.20 GPH Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity. Includes Circulator.
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(4)
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View All Oil Boilers on Sale
On Sale Ends 03/31
$2,348.00
Was 
$2,471.90
SAVE $123.90
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Free Shipping & Lift Gate
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About New Yorker CL3-091-PST-MBSR
New Yorker CL3-091 - 56K BTU - 84.1% AFUE - Steam Oil Boiler - Chimney Vent - Includes Tankless Coil
Model: CL3-091-PST-MBSR
Floor Mounted, Cast Iron Boiler. Ships Packaged. Ratings: 0.65 GPH Gross Input, 78K BTU DOE Capacity, 56K BTU Net IBR Capacity.
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
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Model CL3-091-PST-MBSR is a Closeout
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$2,649.00
Was 
$2,749.00
SAVE $100.00
Only 1 In-Stock
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Free Shipping & Lift Gate
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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