Degree Fahrenheit hour per BTU (°F·h/BTU)
The temperature difference in °F needed to drive one BTU (IT) per hour of heat flow.
What is a degree Fahrenheit hour per BTU?
- Symbol
- °F·h/BTU
- Quantity
- Thermal Resistance
- Unit system
- US customary
- Definition
- The temperature difference in °F needed to drive one BTU (IT) per hour of heat flow.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in US heat transfer calculations for the total thermal resistance of a building element or piece of equipment.
Degree Fahrenheit hour per BTU in other thermal resistance units
- 1 °F·h/BTU ≈ 1.895634241 K/WDegree Fahrenheit hour per BTU to Kelvin per watt converter
- 1 °F·h/BTU ≈ 0.001895634241 K/mWKelvin per milliwatt
Degree Fahrenheit hour per BTU quick reference
| Degree Fahrenheit hour per BTU | Kelvin per watt | Kelvin per milliwatt |
|---|---|---|
| 1 °F·h/BTU | ≈ 1.895634241 K/W | ≈ 0.001895634241 K/mW |
| 10 °F·h/BTU | ≈ 18.95634241 K/W | ≈ 0.01895634241 K/mW |
| 100 °F·h/BTU | ≈ 189.5634241 K/W | ≈ 0.1895634241 K/mW |
| 1000 °F·h/BTU | ≈ 1895.634241 K/W | ≈ 1.895634241 K/mW |
Where the degree Fahrenheit hour per BTU fits
The next smaller thermal resistance unit is the kelvin per watt (K/W). 1 °F·h/BTU ≈ 1.895634241 K/W, and 1 K/W = 0.52752792631 °F·h/BTU.
The next larger thermal resistance unit is the kelvin per milliwatt (K/mW). 1 °F·h/BTU ≈ 0.001895634241 K/mW, and 1 K/mW = 527.52792631 °F·h/BTU.
Frequently asked questions
- How many kelvins per watt are in one degree Fahrenheit hour per BTU?
- One degree Fahrenheit hour per BTU ≈ 1.895634241 K/W (kelvins per watt).
- How many kelvins per milliwatt are in one degree Fahrenheit hour per BTU?
- One degree Fahrenheit hour per BTU ≈ 0.001895634241 K/mW (kelvins per milliwatt).