Laars Heating Systems RV2001900 Gas Valve 318172-701 This microprocessor control module manages

This microprocessor control module manages critical heating sequences

ideal for coordinating damper and valve actuators

The Lennox 93K98 Combustion Air Blower is an OEM replacement assembly engineered for high-efficiency residential gas furnaces

it is designed for continuous air-over duty

selecting the correct gas regulator orifice size is non-negotiable for system safety and efficiency

Laars Heating Systems RV2001900 Gas Valve 318172-701 This microprocessor control module managesThe Laars Heating Systems RV2001900 Gas Valve is a heavy duty, direct replacement component engineered for high performance gas fired boilers and commercial water heaters. This 24V natural gas valve is designed to operate with a precise 4" WC manifold pressure, ensuring stable combustion and reliable modulation across demanding duty cycles. Featuring a 3 4" NPT inlet and outlet, it provides the necessary flow capacity for large scale heating