Setting the central heating level in gas furnace panel

---

Size: 4088px × 2704px
Photo credit: © Daniel Krasoń / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: boiler, boiling, burn, button, calorifier, central, cold, column, comfort, control, device, display, domestic, energy, fire, furnace, gas, gas-fired, heat, heater, heating, home, hot, house, household, icon, indicator, industry, installation, isolated, knob, line, panel, propane, safety, smart, system, tank, temp, temperature, thermal, water