Long-established homeowners in Rancho Cucamonga, or the Inland Empire in general, may feel the chill where it wasnâ¤™t evident before, especially among those living in well-maintained houses. Some long-standing houses date back to old times, such as the John Rains House and China House. If your house stood before or shortly after the cityâ¤™s incorporation and the window is finally open for a heating, air conditioning, and ventilation (HVAC) system upgrade, experts at HVAC in Rancho Cucamonga like the crew at Day Aire are ready to work with you. Old houses often have gravity-based hot water systems circulating the heating load all over the dwelling and linking the radiators to it through large pipes. However, the pipesâ¤™ size also results in the system being forced to use so much energy to heat the water, even with the thermostat regulating the heating load at the source to no more than 180 degrees Fahrenheit.