convert 1500 watts to btu/hr for space heater
About 5,118 BTU/h (IT): 1,500 W ÷ (watts per BTU/h in this tool) ≈ 5,118.2 BTU/h.
Detailed answer
This tool defines BTU/h using the IT British thermal unit rate: ≈0.293071 W per BTU/h. Divide watts by that value to get BTU/h. Ratings on packaging may round; always check whether the device is resistive (close to unity PF) before treating W as heat output.
Relationship context
Electric heaters are often sold with wattage; gas and mixed HVAC specs still use BTU/h. Converting helps compare electric models to fuel-based ratings.
Quick conversion table
| Watt (w) | BTU per Hour (IT) (btu_hr) |
|---|---|
| 0.1 | 0.3412141633 |
| 1 | 3.4121416331 |
| 2 | 6.8242832663 |
| 3 | 10.2364248994 |
| 4 | 13.6485665325 |
| 5 | 17.0607081656 |
| 6 | 20.4728497988 |
| 7 | 23.8849914319 |
| 8 | 27.297133065 |
| 9 | 30.7092746982 |
| Watt (w) | BTU per Hour (IT) (btu_hr) |
|---|---|
| 10 | 34.1214163313 |
| 20 | 68.2428326626 |
| 30 | 102.364248994 |
| 40 | 136.485665325 |
| 50 | 170.607081656 |
| 60 | 204.728497988 |
| 70 | 238.849914319 |
| 80 | 272.97133065 |
| 90 | 307.092746982 |
| 100 | 341.214163313 |
More Watts converters
Dedicated pages from Watt to every other hub power unit (watt, milliwatt, kilowatt, megawatt, mechanical horsepower, BTU per hour, kilocalorie per hour, volt-ampere).
- w to milliwatt (Watt to Milliwatt)
- w to kilowatt (Watt to Kilowatt)
- w to megawatt (Watt to Megawatt)
- w to gigawatt (Watt to Gigawatt)
- w to hp (Watt to Horsepower (mechanical))
- w to ps (Watt to Metric Horsepower (PS/CV))
- w to cv (Watt to Metric Horsepower (CV))
- w to btu-hr (Watt to BTU per Hour (IT))
- w to kcal-h (Watt to Kilocalorie per Hour (thermochemical))
- w to va (Watt to Volt-Ampere (VA))
- w to kva (Watt to Kilovolt-Ampere (kVA))
- w to mva (Watt to Megavolt-Ampere (MVA))
- w to tr (Watt to Ton of Refrigeration (TR))
- w to dbm (Watt to dBm)
- w to dbw (Watt to dBW)
- w to ft-lb-s (Watt to Foot-pound per Second)