Extended Reach: The 100-foot span allows for flexible remote thermostat placement in complex zoning applications

Precise Calibration: The helical-style element is factory-calibrated to ensure accurate switching at the 0-43

Is mounting orientation critical for this model

making it ideal for multi-family housing and compact utility spaces

The Watts 0559105 (Model LF1170-M2-US) is a high-performance 1 inch thermostatic mixing valve engineered for precision temperature regulation in domestic hot water systems and radiant heating applications

Laars Heating Systems RV2019200 Gas Valve 319825-402 Extended Reach: The 100-foot spanThe Laars Heating Systems RV2019200 is an OEM modulating gas valve specifically engineered for the NeoTherm NTH399 condensing boiler and high volume water heater. This negative pressure gas valve works in tandem with the combustion blower and venturi to maintain a precise air to gas ratio, ensuring high efficiency performance and stable premix burner operation. It is a critical component for maintaining the boiler's 399 MBH firing rate while