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: These allow the boiler to adjust its flame size (firing rate) up or down based on demand, rather than just being "on" or "off". Built-in Leak Sensors : Found in premium models like the Rheem Prestige Combi Boiler Go to product viewer dialog for this item.

, offer Wi-Fi or Bluetooth for remote monitoring and adjustments via a smartphone app. buy gas boiler

, this feature can automatically shut off the water valve if a leak is detected to prevent property damage. : Many modern boilers, such as the Rinnai I-Series Plus Go to product viewer dialog for this item. : These allow the boiler to adjust its

: On a mildly chilly day, the boiler might only heat the water to . On a freezing day, it will ramp up to Why it's a "must-have" : , this feature can automatically shut off the

: By operating at lower temperatures when possible, it reduces the stress on the boiler's components. Other Essential Modern Features When shopping, you should also check for:

: It prevents the system from overworking, which can lead to significant energy savings.