But how many gas valves does it take to quickly tame a plasma that is hotter than the sun? The team has to strike the perfect balance: with too few valves, some parts of SPARC might overheat.

CALGARY - Consumers are paying a new price on their carbon emissions starting today — $0. The levy had previously been set at $80 per tonne, an amount that has increased yearly since the ...

They provide heating and cooling with less energy than traditional furnaces and air ... If your old gas water heater held 50 gallons of 120 degrees Fahrenheit water, you could get a 65 or 80 gallon ...

They provide heating and cooling with less energy than traditional furnaces and air ... If your old gas water heater held 50 gallons of 120 degrees fahrenheit water, you could get a 65 or 80 gallon ...

Van Gilder replaced a gas stove in his Manhattan apartment last ... They provide heating and cooling with less energy than traditional furnaces and air conditioners. But heat pumps usually require ...