Shop Resideo Sale
Filter menu expanded

Filters

309 items
Reset

SORT

Product Availability
–

Show In Stock Only (41)

Brand
–

AO Smith (12)
Burnham (61)
Laars (27)
Lochinvar (25)
New Yorker (16)
Peerless Boilers (17)
Utica-Dunkirk (4)
Weil-McLain (147)

BTU Output
–

20,000 - 50,000 (60)
50,000 - 75,000 (48)
75,000 - 100,000 (49)
100,000 - 125,000 (42)
125,000 - 150,000 (38)
150,000 - 175,000 (34)
175,000 - 200,000 (8)
200,000+ (23)

Fuel Type
–

Natural Gas (211)
Propane (96)

Efficiency
–

0 - 80% (8)
80 - 85% (299)
85 - 90% (27)

Vent Type
–

AL29-4C (1)
Atmospheric (128)
Direct Vent (1)
Power Vent (79)
Type B Vent (Chimney) (118)

Features
–

Atmospheric Vent (10)
Chimney Vent (14)
Combo DHW (3)
Copper Heat Exchanger (12)
EI/Spark Ignition (95)
Electronic Ignition (4)
Standard (53)

Review Score
–

(27)
(9)
(1)

Price Range
–

$500 to $600 (1)
$2000 to $2500 (15)
$2500 to $3000 (47)
$3000 to $3500 (55)
$3500 to $4000 (47)
$4000 to $4500 (30)
$4500 to $5000 (37)
$5000 to $10000 (70)
$10000 to $20000 (7)

Standard Gas Boilers

Help Face
Need a little help?
309 items
Grid
List
Compare
Product Image of CGI-3 - 43,000 BTU Output Boiler, Spark Ignition, No Circulator - Series 5 (LP Gas)
$3,325.93 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-5 - 89,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator, Works at 9,000-10,000 ft Altitude - Series 5 (Nat Gas)
$4,329.90 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-6 - 122,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 4,500-7,000 ft Altitude - Series 4 (Nat Gas)
$4,272.95 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-8 - 188,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 7,000-10,000 ft Altitude - Series 4 (Nat Gas)
$4,984.40 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-4 - 73,000 BTU Output Boiler, Spark Ignition, Works at 4,500-7,000 ft Altitude - Series 4 (LP Gas)
$3,457.65 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-8 - 164,000 BTU Output Cast Iron Boiler, Spark Ignition w/ Taco 007 Circulator - Series 5 (LP Gas)
$4,919.38 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-25 - 36,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator, Works at 9,000-10,000 ft Altitude - Series 5 (Nat Gas)
$3,302.79 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-4 - 67,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator, Works at 2,000-4,000 ft Altitude - Series 5 (Nat Gas)
$3,853.05 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-6 - 117,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 5,000-7,000 ft Altitude - Series 5 (Nat Gas)
$4,879.85 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-8 - 164,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 5,000-7,000 ft Altitude - Series 5 (Nat Gas)
$6,006.95 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-8 - 164,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 9,000-10,000 ft Altitude - Series 5 (Nat Gas)
$6,006.95 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-25 - 27,000 BTU Output Boiler, Spark Ignition - Series 3 (LP Gas)
$2,837.47 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-3 - 48,000 BTU Output Boiler, Spark Ignition, No Circulator - Series 4 (LP Gas)
$3,054.60 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-25 - 36,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator - Series 5 (Nat Gas)
$3,089.19 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-7 - 141,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 2,000-5,000 ft Altitude - Series 5 (Nat Gas)
$5,498.65 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-7 - 147,000 BTU Output Boiler, Spark Ignition - Series 3 (LP Gas)
$4,959.44 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-5 - 98,000 BTU Output Boiler, Spark Ignition, No Circulator - Series 4 (Nat Gas)
$3,538.55 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-7 - 147,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 7,000-10,000 ft Altitude - Series 4 (Nat Gas)
$4,749.80 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-3 - 48,000 BTU Output Boiler, Spark Ignition, Works at 4,500-7,000 ft Altitude - Series 4 (LP Gas)
$3,159.50 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGA-5 - 98,000 BTU Output Boiler, Spark Ignition, Works at 7,000-10,000 ft Altitude - Series 4 (LP Gas)
$3,518.07 each
In Stock
Get 1 by Fri, Nov 20 - Tue, Nov 24
In Stock
Get 1 by Fri, Nov 20 - Tue, Nov 24
Compare
Product Image of CGI-7 - 141,000 BTU Output Boiler, Spark Ignition, No Circulator - Series 5 (LP Gas)
$5,026.05 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-5 - 89,000 BTU Output Boiler, Spark Ignition w/ Taco 007e Circulator, Works at 4,000-7,000 ft Altitude - Series 5 (Nat Gas)
$4,329.90 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-8 - 164,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 2,000-5,000 ft Altitude - Series 5 (Nat Gas)
$6,006.95 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CGI-8 - 164,000 BTU Output Boiler, Spark Ignition w/ Taco 007 Circulator, Works at 7,000-10,000 ft Altitude - Series 5 (LP Gas)
$6,006.95 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 304 77,000 BTU Output, Electronic Ignition, 4 Section Gas Fired Cast Iron Boiler (NG)
$5,095.71 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of PEG-35 - 62,000 BTU Output Cast Iron Packaged Steam Boiler, Spark Ignition - Series 6 (NG PIDN)
$4,860.04 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of MI-09-e - 183,000 BTU Output Intermittent Ignition Packaged Residential Water Boiler (Nat Gas)
$6,973.04 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of MI-03-e - 50,000 BTU Output Intermittent Ignition Packaged Residential Water Boiler (Nat Gas)
$3,691.42 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of MI-04-e - 75,000 BTU Output Intermittent Ignition Packaged Residential Water Boiler (LP Gas)
$4,001.53 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of HW-670-LP Burkay 536,000 BTU Output Electronic Ignition Hot Water Boiler (LP Gas)
$12,928.58 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of HW-225M Burkay 225,000 BTU Input Electronic Ignition Hot Water Boiler (Natural Gas)
$6,457.47 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of IN3, 38,000 BTU Output Independence Steam Boiler w/ EZ-Connect Package, Electronic Ignition (Nat Gas)
IN3, 38,000 BTU Output Independence Steam Boiler w/ EZ-Connect Package, Electronic Ignition (Nat Gas)
SKU: IN3S-EI-EZ-NG
Burnham
SKU: IN3S-EI-EZ-NG
Brand: Burnham
$3,903.85 each
Backorder
Get it by Thu, Feb 11 - Wed, May 12
Backorder
Get it by Thu, Feb 11 - Wed, May 12
Compare
Product Image of CG70F 153,000 BTU Output Spark Ignition Cast Iron Gas-Fired Water Boiler w/ LWCO, Grundfos Pump (NG)
$3,266.13 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CG30F 51,000 BTU Output Spark Ignition Cast Iron Gas-Fired Water Boiler w/ LWCO, Grundfos Pump (NG)
$2,166.65 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CBL315M-9 224,000 BTU Output Two Stage Spark Ignition Copper-Fin Boiler (LP Gas)
$6,180.71 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CBL399M-9 285,000 BTU Output Two Stage Spark Ignition Copper-Fin Boiler (LP Gas)
$6,941.02 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 130,000 BTU Output Two Stage Spark Ignition Solution Boiler (LP Gas)
$3,084.61 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 32,000 BTU Output Two Stage Spark Ignition Solution Boiler (Nat Gas)
$2,638.30 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 32,000 BTU Output Two Stage Spark Ignition Solution Boiler (LP Gas)
$2,288.44 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of CBL500M-9 357,000 BTU Output Two Stage Spark Ignition Copper-Fin Boiler (LP Gas)
$7,746.85 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 54,000 BTU Output Two Stage Spark Ignition Solution Boiler (LP Gas)
$2,360.98 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 155,000 BTU Output Two Stage Spark Ignition Solution Boiler (LP Gas)
$3,735.26 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of 130,000 BTU Output Two Stage Spark Ignition Solution Boiler (Nat Gas)
$3,329.34 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of SteamMax, 213,000 BTU Output, 892 Sq. Ft. Steam Boiler (Natural Gas)
$7,796.19 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of MGB-060K 43,000 BTU Output Cast Iron Gas Fired Boiler w/ Hydrolevel Control (Natural Gas)
$2,921.18 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of PVCG-C 52,000 BTU Output, Gas Fired Water Boiler (Nat Gas)
$2,594.14 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of IN7, 130,000 BTU Output Independence Steam Boiler, Electronic Ignition (Nat Gas)
$5,354.55 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Compare
Product Image of X-204 77,000 BTU Output 3 Section Gas Boiler (NG)
X-204 77,000 BTU Output 3 Section Gas Boiler (NG)
SKU: X-204N-TH
Burnham
SKU: X-204N-TH
Brand: Burnham
$2,954.14 each
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Backorder
Get it by Wed, Dec 16 - Thu, Jan 21
Resources
FAQs, Manuals & Videos
Videos