Many residential natural gas boilers provide both space heating and domestic hot water. This function is usually achieved via a heat exchanger and automatic domestic hot water priority.
Hot water priority
When a tap is turned on, the boiler usually prioritizes hot water and temporarily reduces or interrupts space heating.
Temperature adjustment
The hot water temperature should be set to a comfortable and safe level without excess, in order to avoid waste and burns.
Temperature instability
Changes in water pressure, clogged filters, or deposits in the heat exchanger can cause fluctuations between hot and cold water.
Maintenance
Periodic inspection of the heat exchanger, filters, and sensors helps in stable operation and performance maintenance.
