Oil Boilers

Multiple Burner Options: L/Burner

Please note that any boiler with L/Burner in the description indicates the burner is not included. However, burner options are available in the "Optional Products" section at the bottom of the page for those products.

Filter

: Available Items Only
: Buderus (3)
Conforto (10)
New Yorker (21)
NTI (6)
Peerless (41)
Toyotomi (1)
Viessmann (6)
Weil-Mclain (16)
: 80.00 - 84.99% (20)
85.00 - 89.99% (84)
: Steam (25)
Water (79)
: 100,000 - 124,999 (20)
100,000 - 125,000 (1)
125,000 - 129,999 (5)
125,000 - 149,999 (16)
150,000 - 174,999 (13)
175,000 - 199,999 (6)
175,999 - 199,999 (1)
200,000+ (25)
50,000 - 74,999 (6)
75,000 - 99,999 (11)
: Cast Iron (95)
Stainless Steel (1)
Steel (8)
: 1" (3)
1-1/2" (34)
1-1/4" (46)
2" (21)
: 1-1/2" (38)
1-1/4" (31)
2" (25)
2-1/2" (4)
3" (6)
: No (71)
Yes (33)
: Atmospheric (68)
Atmospheric or Direct (27)
Direct (8)
Power Vent (1)
: No (77)
Yes (27)

Results Per Page

104 items (estimated)

Sort by

content loaded

Compare

Peerless

1304063 Peerless WV-DV-04-WPCT-NX-1S-007-10FT Oil Direct Vent Water Boiler

Part #PEEWVDV04WPCTNX

MFG #1304063

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13330 Peerless WVDV-03-WPC 84.1% AFUE Oil Boiler With Beckett Burner Less Vent 154K BTU

Part #PEEWVDV03WPCBB

MFG #13330

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13332 Peerless WVDV-03-WPCT 84.1% AFUE Oil Boiler With Beckett Burner Less Vent 154K BTU

Part #PEEWVDV03WPCTBB

MFG #13332

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13388 Peerless WVDV-03-WPC 84.1% AFUE Oil Boiler With Riello Burner Less Vent 154K BTU

Part #PEEWVDV03WPCRB

MFG #13388

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13398 Peerless WVDV-03-WPCT 84.1% AFUE Oil Boiler With Riello Burner Less Vent 154K BTU

Part #PEEWVDV03WPCTRB

MFG #13398

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13446 Peerless WVDV-04-WPC 86.0% AFUE Oil Boiler With Beckett Burner Less Vent 182K BTU

Part #PEEWVDV04WPCBB

MFG #13446

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13448 Peerless WVDV04-WPCT 86.0% AFUE Oil Boiler With Riello Burner Less Vent 182K BTU

Part #PEEWVDV04WPCTRB

MFG #13448

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13486 Peerless WVDV-04-WPC 86.0% AFUE Oil Boiler With Riello Burner Less Vent 182K BTU

Part #PEEWVDV04WPCRB

MFG #13486

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13508 Peerless WV-e-05-WPCL 86.6% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 273K BTU

Part #PEEWVE05WPCL

MFG #1305034

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13509 Peerless WV-e-05-WPCTL 86.6% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 273K BTU

Part #PEEWVE05WPCTL

MFG #1305035

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14359 Peerless WBV-e-03-WPCL 87.5% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 147K BTU

Part #PEEWBVE03WPCL

MFG #1403078

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14360 Peerless WBV-e-03-WPCTL 87.5% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 147K BTU

Part #PEEWBVE03WPCTL

MFG #1403081

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14366 Peerless WBV-e-03-SPL 85.6% AFUE Steam Boiler Less Burner 147K BTU

Part #PEEWBVE03SPL

MFG #1403079

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14378 Peerless WBV-e-03-SPTL 85.6% AFUE Steam Boiler With Tankless Coil Less Burner 147K BTU

Part #PEEWBVE03SPTL

MFG #1403080

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14458 Peerless WBV-e-04-WPCL 87% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 210K BTU

Part #PEEWBVE04WPCL

MFG #1404082

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14459 Peerless WBV-e-04-WPCTL 87% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 210K BTU

Part #PEEWBVE04WPCTL

MFG #1404086

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14465 Peerless WBV-e-04-SPL 85.6% AFUE Steam Boiler Less Burner 210K BTU

Part #PEEWBVE04SPL

MFG #1404084

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14466 Peerless WBV-e-04-SPTL 85.6% AFUE Steam Boiler With Tankless Coil Less Burner 210K BTU

Part #PEEWBVE04SPTL

MFG #1404085

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15326 Peerless EC-e-03-WPCL 87.6% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 80 MBH

Part #PEEECE03WPCL

MFG #1503026

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15331 Peerless EC-e-03-WPCTL 87.6% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 80 MBH

Part #PEEECE03WPCTL

MFG #1503027

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15423 Peerless EC-e-04-WPCL 86.5% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 132 MBH

Part #PEEECE04WPCL

MFG #1504019

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15430 Peerless EC-e-04-WPCTL 86.5% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 132MBH

Part #PEEECE04WPCTL

MFG #1504021

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1603028 Peerless ECT Series 86.5% 3 Section Steam Boiler Package less Burner

Part #PEEECTE03SPL

MFG #1603028

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1603029 Peerless ECT Series 86.5% 3 Section Steam Boiler Package with Tankless Coil less Burner

Part #PEEECTE03SPTL

MFG #1603029

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1604030 Peerless ECT Series 85.5% 4 Section Steam Boiler Package less Burner

Part #PEEECTE04SPL

MFG #1604030

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1604031 Peerless ECT Series 85.5% 4 Section Steam Boiler Package with Tankless Coil less Burner

Part #PEEECTE04SPTL

MFG #1604031

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-000 Weil McLain SGO-3 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 133 Input MBH 86 Net Output MBH

Part #WMPSGO3LB

MFG #386701000

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-001 Weil McLain SGO-4 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 168 Input MBH 108 Net Output MBH

Part #WMPSGO4LB

MFG #386701001

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-002 Weil McLain SGO-5 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 203 Input MBH 131 Net Output MBH

Part #WMPSGO5LB

MFG #386701002

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-003 Weil McLain SGO-6 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 245 Input MBH 158 Net Output MBH

Part #WMPSGO6LB

MFG #386701003

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-012 Weil McLain WGO-2 Series-4 86.4% AFUE Oil Boiler With Circulator Less Burner 98 Input MBH 75 Net Output MBH

Part #WMPWGO2LB

MFG #386701012

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-013 Weil McLain WGO-3R Series-4 86.2% AFUE Oil Boiler With Circulator Less Burner 112 Input MBH 85 Net Output MBH

Part #WMPWGO3LB

MFG #386701013

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1304063 Peerless WV-DV-04-WPCT-NX-1S-007-10FT Oil Direct Vent Water Boiler

Part #PEEWVDV04WPCTNX

MFG #1304063

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13330 Peerless WVDV-03-WPC 84.1% AFUE Oil Boiler With Beckett Burner Less Vent 154K BTU

Part #PEEWVDV03WPCBB

MFG #13330

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13332 Peerless WVDV-03-WPCT 84.1% AFUE Oil Boiler With Beckett Burner Less Vent 154K BTU

Part #PEEWVDV03WPCTBB

MFG #13332

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13388 Peerless WVDV-03-WPC 84.1% AFUE Oil Boiler With Riello Burner Less Vent 154K BTU

Part #PEEWVDV03WPCRB

MFG #13388

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13398 Peerless WVDV-03-WPCT 84.1% AFUE Oil Boiler With Riello Burner Less Vent 154K BTU

Part #PEEWVDV03WPCTRB

MFG #13398

AFUE

80.00 - 84.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13446 Peerless WVDV-04-WPC 86.0% AFUE Oil Boiler With Beckett Burner Less Vent 182K BTU

Part #PEEWVDV04WPCBB

MFG #13446

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13448 Peerless WVDV04-WPCT 86.0% AFUE Oil Boiler With Riello Burner Less Vent 182K BTU

Part #PEEWVDV04WPCTRB

MFG #13448

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13486 Peerless WVDV-04-WPC 86.0% AFUE Oil Boiler With Riello Burner Less Vent 182K BTU

Part #PEEWVDV04WPCRB

MFG #13486

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13508 Peerless WV-e-05-WPCL 86.6% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 273K BTU

Part #PEEWVE05WPCL

MFG #1305034

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

13509 Peerless WV-e-05-WPCTL 86.6% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 273K BTU

Part #PEEWVE05WPCTL

MFG #1305035

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14359 Peerless WBV-e-03-WPCL 87.5% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 147K BTU

Part #PEEWBVE03WPCL

MFG #1403078

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14360 Peerless WBV-e-03-WPCTL 87.5% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 147K BTU

Part #PEEWBVE03WPCTL

MFG #1403081

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14366 Peerless WBV-e-03-SPL 85.6% AFUE Steam Boiler Less Burner 147K BTU

Part #PEEWBVE03SPL

MFG #1403079

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14378 Peerless WBV-e-03-SPTL 85.6% AFUE Steam Boiler With Tankless Coil Less Burner 147K BTU

Part #PEEWBVE03SPTL

MFG #1403080

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14458 Peerless WBV-e-04-WPCL 87% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 210K BTU

Part #PEEWBVE04WPCL

MFG #1404082

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14459 Peerless WBV-e-04-WPCTL 87% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 210K BTU

Part #PEEWBVE04WPCTL

MFG #1404086

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14465 Peerless WBV-e-04-SPL 85.6% AFUE Steam Boiler Less Burner 210K BTU

Part #PEEWBVE04SPL

MFG #1404084

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

14466 Peerless WBV-e-04-SPTL 85.6% AFUE Steam Boiler With Tankless Coil Less Burner 210K BTU

Part #PEEWBVE04SPTL

MFG #1404085

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15326 Peerless EC-e-03-WPCL 87.6% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 80 MBH

Part #PEEECE03WPCL

MFG #1503026

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15331 Peerless EC-e-03-WPCTL 87.6% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 80 MBH

Part #PEEECE03WPCTL

MFG #1503027

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15423 Peerless EC-e-04-WPCL 86.5% AFUE Oil Boiler With Circulator And Hydrostat Less Burner 132 MBH

Part #PEEECE04WPCL

MFG #1504019

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

15430 Peerless EC-e-04-WPCTL 86.5% AFUE Oil Boiler With Circulator, Hydrostat, And Tankless Coil Less Burner 132MBH

Part #PEEECE04WPCTL

MFG #1504021

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1603028 Peerless ECT Series 86.5% 3 Section Steam Boiler Package less Burner

Part #PEEECTE03SPL

MFG #1603028

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1603029 Peerless ECT Series 86.5% 3 Section Steam Boiler Package with Tankless Coil less Burner

Part #PEEECTE03SPTL

MFG #1603029

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1604030 Peerless ECT Series 85.5% 4 Section Steam Boiler Package less Burner

Part #PEEECTE04SPL

MFG #1604030

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Peerless

1604031 Peerless ECT Series 85.5% 4 Section Steam Boiler Package with Tankless Coil less Burner

Part #PEEECTE04SPTL

MFG #1604031

AFUE

85.00 - 89.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-000 Weil McLain SGO-3 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 133 Input MBH 86 Net Output MBH

Part #WMPSGO3LB

MFG #386701000

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-001 Weil McLain SGO-4 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 168 Input MBH 108 Net Output MBH

Part #WMPSGO4LB

MFG #386701001

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-002 Weil McLain SGO-5 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 203 Input MBH 131 Net Output MBH

Part #WMPSGO5LB

MFG #386701002

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-003 Weil McLain SGO-6 Series-4 85% AFUE Steam Oil Boiler With Probe-LWCO Less Burner 245 Input MBH 158 Net Output MBH

Part #WMPSGO6LB

MFG #386701003

AFUE

80.00 - 84.99%

Application

Steam

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-012 Weil McLain WGO-2 Series-4 86.4% AFUE Oil Boiler With Circulator Less Burner 98 Input MBH 75 Net Output MBH

Part #WMPWGO2LB

MFG #386701012

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Compare

Weil-Mclain

386-701-013 Weil McLain WGO-3R Series-4 86.2% AFUE Oil Boiler With Circulator Less Burner 112 Input MBH 85 Net Output MBH

Part #WMPWGO3LB

MFG #386701013

AFUE

85.00 - 89.99%

Application

Water

Boiler Material

Cast Iron

Please Sign In into your account to see price and availability.

Results Per Page