Version 2.6
| Term | Term Definition | Options | Unit of Measure |
|---|---|---|---|
| Hot tub | View | None | |
| Hot water | Water heating only | View | None |
| Hot water | View | None | |
| Hot water | View | None | |
| Hot water and space heating | Both water heating and space heating | View | None |
| Hot Water Distribution Type | View | None | |
| Hot water sanitizing high temperature | A machine that applies hot water to the surfaces of dishes to achieve sanitization. | View | None |
| Hotel | View | None | |
| Hour | View | None | |
| Hours per day | View | None | |
| Hours per month | View | None | |
| Hours per week | View | None | |
| Hours per year | View | None | |
| hp | horsepower | View | None |
| hr | hours | View | None |
| hr-ft2-F/(Btu-in) | hours-square feet-degrees Fahrenheit per British thermal unit-inch (thermal insulance per unit length) | View | None |
| hr-ft2-F/Btu | hours-square feet-degrees Fahrenheit per British thermal unit (thermal insulance) | View | None |
| hr-ft2-F/Btu/in | hours-square feet-degrees Fahrenheit per British thermal unit per inch of thickness | View | None |
| hr/day | hours per day | View | None |
| hr/week | hours per week | View | None |
| hr/year | hours per year | View | None |
| HSPF | Like SEER, this is a measurement of the efficiency of a system and the units are the same (BTU/h divided by Watt). However, this measures the efficiency of the system in heating mode, not cooling mode. Therefore it applies only to heat pumps or reversible air conditioning units and not to units that only cool a space. | View | None |
| HST | View | None | |
| Hub | View | None | |
| Humidification Type |
Humidification type in air-distribution system. |
View | None |
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