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Distance from heater Propane and natural gas heaters Electric heaters 4 sq ft 1 foot 10,000 BTUs 1,000 Watts 16 sq ft 2 feet 36 sq ft 3 feet 64 sq ft 4 feet 100 sq ft 5 feet 46,000 BTUs 144 sq ft 6 feet 1,500 Watts 196 sq ft 7 feet 256 sq ft 8 feet 324 sq ft 9 feet Requires additional heater 400 sq ft 10 feet Requires additional heater
The South Wind Heater was invented by Canadian Harry J. McCollum, [1] who demonstrated his invention to the Stewart-Warner company in 1934. Production at the Chicago firm began a short time later, [2] with more than 3 million units installed in automobiles, aircraft, and military vehicles by 1948. [1]
Natural gas heaters are most popular in the US and most European countries, since the gas is often conveniently piped throughout cities and towns and currently is the cheapest to use. In the United States, typical natural gas water heaters for households without unusual needs are 150–190 L (40–50 US gal) with a burner rated at 10.0–11.7 ...
The older fire-tube boiler design, in which the water surrounds the heat source and gases from combustion pass through tubes within the water space, is typically a much weaker structure and is rarely used for pressures above 2.4 MPa (350 psi). A significant advantage of the watertube boiler is that there is less chance of a catastrophic failure ...
An ordinary electric shower often but not always has three heat settings: high (5.5 kW), low (2.5 kW), or cold (0 W) to use when a central heater system is available or in hot seasons. Higher power (up to 7.5 KW) and lower power (up to 3.2 KW) versions are also made, as well as versions with 4 heat settings or a variable heat setting.
Titanium is one of the few elements that burns in pure nitrogen gas, reacting at 800 °C (1,470 °F) to form titanium nitride, which causes embrittlement. [29] Because of its high reactivity with oxygen, nitrogen, and many other gases, titanium that is evaporated from filaments is the basis for titanium sublimation pumps , in which titanium ...
The Ford Falcon is a full-size car that was manufactured by Ford Australia from 1960 to 2016. From the XA series of 1972 onward, each Falcon and range of derivates have been designed, developed, and built in Australia, following the phasing out of the American-influenced Falcon of 1960 to 1971, which had been re-engineered locally as the XK to XY series for the harsher Australian conditions.
The G was the base model of the SW20 line-up. Standard features included: manual steering, manual climate control but no air conditioning, electric mirror adjustment but manual folding, and fabric door/seat trim. The rear spoiler was optional. G-Limited with the NA 2.0L 3S-GE engine; an A/T was standard or an M/T was optional. The G-Limited was ...