outdood warm forced air furnace with big pipeline used to heating a large building, trees in background

---

Size: 4149px × 3112px
Photo credit: © lucag_g / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: air, boiler, building, burn, burned, central, combustion, comfort, conditioning, construction, control, danger, energy, equipment, fire, forced, fuel, furnace, gas, heat, heater, heating, hot, industrial, industry, machine, machinery, metal, modern, oil, pipe, pipeline, plant, plumbing, power, service, stainless, steel, supply, system, technology, temperature, thermal, thermostat, tree, utility, valves, ventilation, warm