Search

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.

View as Grid List
Sort by
Display per page
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-003
SKU: HYDROTHERM:82-00412-003
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-004
SKU: HYDROTHERM:82-00412-004
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-005
SKU: HYDROTHERM:82-00412-005
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-006
SKU: HYDROTHERM:82-00412-006
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-007
SKU: HYDROTHERM:82-00412-007
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-008
SKU: HYDROTHERM:82-00412-008
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-009
SKU: HYDROTHERM:82-00412-009
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-010
SKU: HYDROTHERM:82-00412-010
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-011
SKU: HYDROTHERM:82-00412-011
$18.56
Picture of HEATNET OVERLAY

HEATNET OVERLAY

HYDROTHERM:82-00412-012
SKU: HYDROTHERM:82-00412-012
$18.56