Burnham Residential Boilers

Local Pickup FAQ's
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 103K BTU Gross Input, 87K BTU DOE Capacity, 76K BTU Net IBR Capacity.
23% Buy This
$3,090.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity.
9% Buy This
$2,881.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted, Hot Water Gas Boiler with 2-Step NG to LP Conversion Included. Ratings: 150K BTU Gross Input, 141K BTU DOE Capacity, 123K Net IBR Capacity. Includes Circulator.
9% Buy This
$3,149.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted, Hot Water Gas Boiler with 2-Step NG to LP Conversion Included. Ratings: 180K BTU Gross Input, 169K BTU DOE Capacity, 147K Net IBR Capacity. Includes Circulator.
9% Buy This
$3,265.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted, Combi Gas Boiler with 2-Step NG to LP conversion included. Ratings: 200K BTU Gross Input, 141K BTU DOE Capacity, 123K Net IBR Capacity. Includes Circulator.
9% Buy This
$3,551.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 144K BTU DOE Capacity, 108K BTU Net IBR Capacity.
5% Buy This
$5,298.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 173K BTU DOE Capacity, 130K BTU Net IBR Capacity.
5% Buy This
$5,829.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 38K BTU Gross Input, 32K BTU DOE Capacity, 28K BTU Net IBR Capacity.
5% Buy This
$2,560.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Taco Circulator and LWCO. Ratings: 103K BTU Gross Input, 87K BTU DOE Capacity, 76K BTU Net IBR Capacity.
5% Buy This
$3,182.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Conversion Included. Ships Packaged. Ratings: 105K BTU Gross Input, 89K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Circulator.
5% Buy This
$3,691.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Step-opening Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 115K BTU DOE Capacity, 86K BTU Net IBR Capacity.
5% Buy This
$4,039.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 140K BTU Gross Input, 117K BTU DOE Capacity, 102K BTU Net IBR Capacity.
5% Buy This
$2,859.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 175K BTU Gross Input, 146K BTU DOE Capacity, 127K BTU Net IBR Capacity.
5% Buy This
$3,479.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 105K BTU Gross Input, 87K BTU DOE Capacity, 65K BTU Net IBR Capacity.
5% Buy This
$3,332.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 175K BTU Gross Input, 144K BTU DOE Capacity, 108K BTU Net IBR Capacity.
$4,649.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 138K BTU Gross Input, 116K BTU DOE Capacity, 101K BTU Net IBR Capacity.
$3,475.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 172K BTU Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity.
$4,000.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted Condensing Boiler with Modulating Gas Valve. Ships Packaged. Low Nox. Ratings: 110K BTU Gross Input, 103K BTU DOE Capacity, 90K BTU Net IBR Capacity.
$4,623.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted Condensing Boiler with Modulating Gas Valve. Ships Packaged. Low Nox. Ratings: 155K BTU Gross Input, 145K BTU DOE Capacity, 126K BTU Net IBR Capacity.
$5,416.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted Condensing Boiler with Modulating Gas Valve. Ships Packaged. Low Nox. Ratings: 270K BTU Gross Input, 252K BTU DOE Capacity, 219K BTU Net IBR Capacity.
$7,849.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Wall Mounted Condensing Boiler with Modulating Gas Valve. Ships Packaged. Low Nox. Ratings: 85K BTU Gross Input, 79K BTU DOE Capacity, 69K BTU Net IBR Capacity.
$4,399.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 245K BTU Gross Input, 208K BTU DOE Capacity, 181K BTU Net IBR Capacity. Includes Circulator.
$5,774.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 280K BTU Gross Input, 208K BTU DOE Capacity, 207K BTU Net IBR Capacity. Includes Circulator.
$6,453.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Included Grundfos Circulator and LWCO. Ratings: 207K BTU Gross Input, 174K BTU DOE Capacity, 151K BTU Net IBR Capacity.
$4,507.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Displaying Products 1 - 24 (of 110)
Tools & Articles
About Burnham Boilers
Burnham residential boilers are known for their superior efficiency, user-friendly controls, and wide breadth of condensing models. We offer natural gas, liquid propane, and dual fuel Burnham models in heating capacities up to 150K BTUs.
How Does a Condensing Boiler Work?
Condensing boilers use a secondary heat exchanger to collect heat from exhaust gases and repurpose it to preheat incoming water. Learn more in our condensing boiler buyer's guide.











