When you need a plumbing contractor at an odd hour, whether it’s late at night, early in the morning, over a weekend, or during a holiday, call us! our staff are available at any hour of any day, and will do the job right. Separate, fixed 180° setpoint input for ‘indirect’ domestic water heater. Boilers can be fueled with oil or natural gas it has more parts and valves than a forced air furnace this is why when it breaks down, it’s time to call a boiler repairman. Free slots for orders with water.