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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 FLAME ROD

FLAME ROD

HYDROTHERM:GX-82762
SKU: HYDROTHERM:GX-82762
$131.18
Picture of FLUE BOX

FLUE BOX

HYDROTHERM:GX-82763
SKU: HYDROTHERM:GX-82763
$246.26
Picture of FLUE BOX GASKET

FLUE BOX GASKET

HYDROTHERM:GX-82764
SKU: HYDROTHERM:GX-82764
$42.08
Picture of FLUE BOX OUTLET GASKET

FLUE BOX OUTLET GASKET

HYDROTHERM:GX-82765
SKU: HYDROTHERM:GX-82765
$42.08
Picture of BLOWER GASKET

BLOWER GASKET

HYDROTHERM:GX-82766
SKU: HYDROTHERM:GX-82766
$19.80
Picture of BURNER DOOR W/CERAMIC DISC

BURNER DOOR W/CERAMIC DISC

HYDROTHERM:GX-82767
SKU: HYDROTHERM:GX-82767
$282.15
Picture of IGNITOR GASKET

IGNITOR GASKET

HYDROTHERM:GX-82768
SKU: HYDROTHERM:GX-82768
$13.61
Picture of BURNER DOOR GASKET

BURNER DOOR GASKET

HYDROTHERM:GX-82770
SKU: HYDROTHERM:GX-82770
$121.27
Picture of AIR SWITCH

AIR SWITCH

HYDROTHERM:GX-82906
SKU: HYDROTHERM:GX-82906
$154.69
Picture of CONDENSATE TRAP

CONDENSATE TRAP

HYDROTHERM:GX-82913
SKU: HYDROTHERM:GX-82913
$105.19