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Enter your value above to convert mbh units to watts or vice versa.
Real-World Examples
The Uses of MBH units to Watts Conversion
MBH is the standard unit printed on residential furnace and boiler nameplates, so this conversion is most useful when comparing against a home's electrical load given in watts.
Reading a Residential Furnace's Nameplate Rating
Home HVAC technicians who calculate a furnace's electrical auxiliary draw in watts convert the furnace's rated heat output, specified in MBH on the nameplate, into watts for a complete appliance power picture.
Comparing Furnace Models Across Manufacturer Listings
Homeowners comparing residential furnace models rated in MBH convert the figure into watts for an apples-to-apples comparison against other watt-rated home appliances.
Sizing a Home's Total Heating and Electrical Load
Electricians who calculate a home's total electrical demand in watts convert the furnace's MBH heat output rating into watts to account for its auxiliary blower and control power within that total.
Quick Reference
Comprehensive Conversion Table
Our quick table gives you instant results, so you don't have to calculate these common values manually.
| Conversion | Formula | Result (W) |
|---|---|---|
| 1 MBH to W | 1 × 293.0710701722222 | 293.07 W |
| 2 MBH to W | 2 × 293.0710701722222 | 586.14 W |
| 3 MBH to W | 3 × 293.0710701722222 | 879.21 W |
| 5 MBH to W | 5 × 293.0710701722222 | 1,465.36 W |
| 10 MBH to W | 10 × 293.0710701722222 | 2,930.71 W |
| 20 MBH to W | 20 × 293.0710701722222 | 5,861.42 W |
| 50 MBH to W | 50 × 293.0710701722222 | 14,653.55 W |
| 100 MBH to W | 100 × 293.0710701722222 | 29,307.11 W |
| 500 MBH to W | 500 × 293.0710701722222 | 146,535.54 W |
Got Questions?
Frequently Asked Questions
How many watts are in 1 mbh?
1 mbh equals 293.071 watts, a figure useful for anyone working at the furnace and residential HVAC equipment nameplate ratings scale.
How many mbh units are in 1 watt?
1 watt equals approximately 0.00341214 mbhs, which puts the size of a single watt into perspective against the mbh.
Why would anyone convert MBH to watts?
This comes up in residential HVAC sizing, where a furnace's rated capacity in MBH needs to be compared against an electrical load figure in watts.
What does MBH stand for?
MBH stands for 1,000 BTU (IT) per hour, using the Roman numeral M for 1,000; it's the standard unit printed on most residential furnace and boiler nameplates in the US.