Pay in 4 interest-free payments of $44.96 Learn more
Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Common Questions How do I configure the control signal on the LF24-MFT-S-20
protecting the heat exchanger from thermal stress and soot accumulation
OEM Build Quality: Features a rugged diaphragm and corrosion-resistant contacts to prevent premature failure
one full turn equals approximately 0
High-efficiency 3/4 HP ECM motor reduces operational energy costs
Lochinvar & A.O. Smith 100173799 Door Kit 319847-401 Common Questions How do IThe Lochinvar & A. O. Smith 100173799 Door Kit is a field critical heat exchanger access door kit designed for high efficiency hydronic boilers and volume water heaters. This OEM assembly, which is functionally identical to WTR3086, serves as the primary seal for the combustion chamber, ensuring proper pressure vessel integrity and thermal containment. When performing a Lochinvar heat exchanger cleaning, replacing the door kit is essential to restore