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Hydrotherm

KN-Series Condensing Cast Iron Boilers from Advanced Thermal Hydronics (Hydrotherm) are the one and only high efficiency cast iron boiler ever made and offer an industry leading 25 year heat exchanger warranty. KN-Series Boilers combine the efficiency of condensing, gas-fired technology with the strength, durability and heat retention of time-tested cast iron construction. From raw materials to the state-of-the-art digital control system, the complete line of KN-Series products is proudly manufactured at the ATH facility in Boyertown, Pennsylvania. Utilizing decades of foundry and manufacturing expertise, KN-Series boilers are cast, machined, wired and assembled to the tightest standards possible resulting in a finished product that is all-American in terms of innovation, reliability and craftsmanship. Models available from 200,000 - 4,000,000 BTU/h.

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BASE ASSEMBLY

HYDROTHERM:7804
SKU: HYDROTHERM:7804
$806.85
Picture of BASE ASSEMBLY

BASE ASSEMBLY

HYDROTHERM:BM-7991
SKU: HYDROTHERM:BM-7991
$785.81
Picture of BASE ASSEMBLY

BASE ASSEMBLY

HYDROTHERM:BM-7992
SKU: HYDROTHERM:BM-7992
$764.78
Picture of BASE ASSEMBLY

BASE ASSEMBLY

HYDROTHERM:BM-7993
SKU: HYDROTHERM:BM-7993
$1,132.31
Picture of BASE ASSEMBLY

BASE ASSEMBLY

HYDROTHERM:BM-7994
SKU: HYDROTHERM:BM-7994
$1,191.71
Picture of BASE ASSEMBLY

BASE ASSEMBLY

HYDROTHERM:BM-7995
SKU: HYDROTHERM:BM-7995
$1,317.94
Picture of BASE ASSEMBLY

BASE ASSEMBLY

HYDROTHERM:BM-7996
SKU: HYDROTHERM:BM-7996
$1,361.25
Picture of BASE ASSEMBLY W/COMBUSTION CHAMBER

BASE ASSEMBLY W/COMBUSTION CHAMBER

HYDROTHERM:BM-3302
SKU: HYDROTHERM:BM-3302
$800.66
Picture of BASE PAN

BASE PAN

HYDROTHERM:BM-2671
SKU: HYDROTHERM:BM-2671
$180.68
Picture of BASE REAR PANEL

BASE REAR PANEL

HYDROTHERM:61181PB
SKU: HYDROTHERM:61181PB
$126.23