Convert energy/power units: MBH (Thousand BTU/h) ↔ BTU/h (BTU per Hour) — accurate for HVAC, heating systems, and energy calculations.
Select conversion direction:
Power Conversion Formula (Energy Standard):
1 MBH = 1,000 BTU/h | 1 BTU/h = 0.001 MBH
BTU/h = MBH × 1000 | MBH = BTU/h ÷ 1000 (Results: 0 decimal places)
*Definition: MBH = "Thousand BTU per Hour" (1 MBH = 10³ BTU/h) — used in HVAC/energy systems
HVAC/power unit: Heating systems, boilers, furnaces, water heaters, energy calculations
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Quick conversions (common HVAC sizes) - click to auto-fill:
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Understanding energy/power units for HVAC, heating systems, and energy calculations.
| Unit | Symbol | Conversion Factor | Common Uses |
|---|---|---|---|
| MBH (Thousand BTU per Hour) | MBH | 1 MBH = 1000 BTU/h = 0.293071 kW = 0.08333 tons | HVAC systems, boilers, furnaces, water heaters, commercial heating/cooling |
| BTU per Hour | BTU/h | 1 BTU/h = 0.001 MBH = 0.000293071 kW = 8.333×10⁻⁵ tons | Residential heating/cooling, small appliances, energy efficiency ratings |
| MBH | ≈ | BTU/h | HVAC Scenario |
|---|---|---|---|
| 0.5 | ≈ | 500 | Small space heater |
| 15 | ≈ | 15,000 | Portable AC unit |
| 60 | ≈ | 60,000 | Mid-sized residential furnace |
| 200 | ≈ | 200,000 | Commercial boiler |
| 500 | ≈ | 500,000 | Large industrial heater |
MBH is a critical unit for sizing heating/cooling equipment—here’s why it matters:
| Feature | Details | HVAC Advantage |
|---|---|---|
| Unit Simplification | 1 MBH = 1000 BTU/h | Avoids large numbers (e.g., 50 MBH vs. 50,000 BTU/h) |
| Industry Standard | Used in equipment specs, manuals, and energy codes | Consistency across manufacturers and contractors |
| Scalability | Works for residential (10–100 MBH) and commercial (100+ MBH) systems | One unit for all project sizes |
About MBH, BTU/h, and HVAC energy conversions
The key difference is time context (power vs. energy):
Common Confusion: MMBTU = 1,000,000 BTU (energy), while MBH = 1,000 BTU/h (power)
MBH is preferred in HVAC for practicality and industry consistency:
Use these cross-unit conversion factors for HVAC system design:
1 MBH = 0.293071 Kilowatts (kW) = 0.08333 Tons of Refrigeration (tons)
1 Kilowatt (kW) = 3.41214 MBH = 2.84345 Tons
1 Ton of Refrigeration = 12 MBH = 3.51685 kW = 12,000 BTU/h
Practical cross-conversion examples:
These conversions are critical for integrating HVAC systems with electrical grids (kW) or comparing heating/cooling capacities (tons).
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Convert between MBH (Thousand BTU/h) and BTU/h (BTU per Hour) with precision — ideal for HVAC, heating systems, and energy calculations.
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