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  2. Hot water reset - Wikipedia

    en.wikipedia.org/wiki/Hot_water_reset

    Hot water reset, also called outdoor reset (ODR), is an energy-saving automatic control algorithm for heating boilers that are typically fired with fuel oil or natural gas.A hot water reset control loop measures the outside air temperature; this information is used to estimate demand or heating load as the outdoor temperature varies.

  3. One-repetition maximum - Wikipedia

    en.wikipedia.org/wiki/One-repetition_maximum

    Compared to a formal 1RM test, the submaximal estimation method is safer and quicker. [13] The estimate may not be accurate, but can be used as the starting point for a 1RM test. The formulas can also be used the other way, to calculate what weight is needed for a given repetition maximum, as a percent of the estimated or actual 1RM.

  4. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Radiators through which the heated water passes in order to release heat into rooms. The circulating water systems use a closed loop; the same water is heated and then reheated. A sealed system provides a form of central heating in which the water used for heating circulates independently of the building's normal water supply.

  5. Patio heater - Wikipedia

    en.wikipedia.org/wiki/Patio_heater

    Hanging patio heater: portable and small footprint; comes in electric only Tabletop patio heater: ultra-portable and great for smaller groups or outdoor dining, but it uses a small propane tank Patio heaters have become popular with bars and restaurants, since they extend the day and the season for their customers to sit outdoors.

  6. Outdoor wood-fired boiler - Wikipedia

    en.wikipedia.org/wiki/Outdoor_wood-fired_boiler

    The outdoor wood boiler is a variant on the indoor wood, oil or gas boiler. An outdoor wood boiler or outdoor wood stove is a unit about 4-6 feet wide and around 10 feet long. It is made up of four main parts- the firebox, which can be either round or square, the water jacket, the heat exchanger, and the weather proof housing.

  7. Wet-bulb globe temperature - Wikipedia

    en.wikipedia.org/wiki/Wet-bulb_globe_temperature

    The NWS office in Tulsa, Oklahoma, in conjunction with Oral Roberts University's mathematics department, published an approximation formula to the WBGT that takes into account cloud cover and wind speed; in limited experimentation (four samples), the office claimed the estimate was regularly accurate to within 0.5 °F (0.28 °C), even with a ...

  8. Heating element - Wikipedia

    en.wikipedia.org/wiki/Heating_element

    An optimized heater design helps to control the heating power and modulate the local temperatures across the heater substrate. In cases where there is a requirement of two or more heating zones with different power densities over a relatively small area, a thick-film heater can be designed to achieve a zonal heating pattern on a single substrate.

  9. Glossary of construction cost estimating - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_construction...

    A Allocation of costs is the transfer of costs from one cost item to one or more other cost items. Allowance - a value in an estimate to cover the cost of known but not yet fully defined work. As-sold estimate - the estimate which matches the agreed items and price for the project scope. B Basis of estimate (BOE) - a document which describes the scope basis, pricing basis, methods ...

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