). The water temperature out of the heater at this setting will be approximately 120
) setting is the safest and most economical. If you want hotter water, rotate the water temperature dial
) to a higher setting. Approximate water temperature delivered at the different settings is shown in the following table.
) to the “PILOT LIGHTING” position on dial (as shown in Figure 3). 
37C73U specifications
The White Rodgers 37C73U is a versatile and highly-regarded programmable thermostat designed to optimize energy usage while ensuring maximum comfort in residential heating and cooling systems. This device represents a fusion of advanced technology and user-friendly design, making it a preferred choice for many homeowners.One of the main features of the 37C73U is its digital display, which provides clear and intuitive navigation through its various settings. Users can effortlessly program their heating and cooling schedules according to their daily routines, ensuring that their home environment remains comfortable without unnecessary energy expenditure. The thermostat can typically be programmed for multiple time periods throughout the day, allowing for customized climate control that accommodates both personal preferences and efficiency.
The 37C73U employs proprietary adaptive recovery technology, which learns the household's heating and cooling patterns over time. This feature ensures that the desired temperature is met at the right time, preventing overuse of the heating or cooling system while promoting energy savings. By anticipating user needs, the thermostat optimally balances comfort and efficiency.
Another notable characteristic of the White Rodgers 37C73U is its compatibility with a variety of HVAC systems, including conventional forced air, heat pumps, and even some electric baseboard systems. This flexibility allows for widespread use across different home setups, facilitating easier installations and upgrades.
The thermostat also offers features such as filter change reminders and temperature holds, which further enhance its usability. The filter change reminder ensures that homeowners maintain their HVAC systems effectively by keeping track of when filters need replacement, ultimately improving air quality and system efficiency. The temperature hold feature allows users to temporarily adjust the temperature without altering the programmed schedule, providing added convenience during unexpected changes in occupancy or plans.
With its sleek design and straightforward interface, the White Rodgers 37C73U appeals to both tech-savvy users and those who prefer simplicity. It combines thoughtful engineering with practical features, making it a great choice for anyone looking to improve their home's climate control while reducing energy bills. The White Rodgers 37C73U stands out in the competitive thermostat market for its reliability, efficiency, and functionality, catering to the needs of modern homeowners.