Boiler
Domestic hot water and heating water plant (basement)
Firing status
Low fire
Heating setpoint
165°F
DHW setpoint
140°F
Heating discharge
165.0°F
Heating return
142.0°F
ΔT 23.0°F
DHW supply
138.0°F
DHW return
118.0°F
ΔT 20.0°F
Stack temperature
310°F
Run hours (total)
8,421.6
Run hours today
0.4
Low 0.1 · High 0.2
Run hours (30d)
501
Stage 2 heating assist
StandbyThe boiler turns on to help the heat pumps when building demand goes above the Boiler Demand Setpoint, or when it's colder outside than the cutoff. Heat pumps keep running.
Boiler Demand Setpoint
150 kW
Live demand 120.8 kW
Outside temp cutoff
45°F
Outside now 31.5°F
Standby
Releases when demand is 5% under the setpoint and outside is 2°F above the cutoff.