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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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Picture of BLOWER GASKET

BLOWER GASKET

HYDROTHERM:GX-82719
SKU: HYDROTHERM:GX-82719
$19.80
Picture of BLOWER OUTLET GASKET

BLOWER OUTLET GASKET

HYDROTHERM:59499
SKU: HYDROTHERM:59499
$3.71
Picture of BLOWER RELAY, SOLID STATE

BLOWER RELAY, SOLID STATE

HYDROTHERM:15-00105-001
SKU: HYDROTHERM:15-00105-001
$398.47
Picture of BLOWER REPLACEMENT KIT

BLOWER REPLACEMENT KIT

HYDROTHERM:75-00573-002
SKU: HYDROTHERM:75-00573-002
$6,696.11
Picture of BLOWER REPLACEMENT KIT

BLOWER REPLACEMENT KIT

HYDROTHERM:75-00572-001
SKU: HYDROTHERM:75-00572-001
$4,409.21
Picture of BLOWER REPLACEMENT KIT

BLOWER REPLACEMENT KIT

HYDROTHERM:75-00573-001
SKU: HYDROTHERM:75-00573-001
$4,852.24
Picture of BLOWER REPLACEMENT KIT (460V-575V)

BLOWER REPLACEMENT KIT (460V-575V)

HYDROTHERM:75-00573-003
SKU: HYDROTHERM:75-00573-003
$6,958.46
Picture of BM-1507 HYDROTHERM BM-1507 BLOWER ASSEMBLY FOR KN-6 KN-10 KN-20

BM-1507 HYDROTHERM BM-1507 BLOWER ASSEMBLY FOR KN-6 KN-10 KN-20

HYDROTHERM:BM-1507
SKU: HYDROTHERM:BM-1507
$1,305.56
Picture of BM-1508 BLOWER ASSEMBLY

BM-1508 BLOWER ASSEMBLY

HYDROTHERM:BM-1508
SKU: HYDROTHERM:BM-1508
$2,279.48
Picture of BM-1509 BURNER REBUILD KIT

BM-1509 BURNER REBUILD KIT

HYDROTHERM:BM-1509
SKU: HYDROTHERM:BM-1509
$2,595.04